WESTERN REGIONAL POWER COMMITTEE - · PDF fileWESTERN REGIONAL POWER COMMITTEE ... Annexure-...

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Government of India kondÌya ivaVut pàiQakrNa

Central Electricity Authority

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MINUTES OF 6TH MEETING OF WRPC HELD ON 11TH JANUARY 2008 AT PORT BLAIR

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Minutes of 6th WRPC meeting held on 11th Jan 08

C O N T E N T S

Item No. Particulars

Page No.

ITEMS FOR DISCUSSION

ITEM No.1 CONFIRMATION OF THE MINUTES OF THE 5th MEETING OF WRP COMMITTEE

4

ITEM No.2 SCHEDULING OF UNREQUISITIONED POWER OF KAWAS & GANDHAR GPS OF WR IN JUNE 2007

5

ITEM No.3 SCHEDULING AND COMMERCIAL METERING LOCATIONS FOR RGPPL

7

ITEM No.4 REPLACEMENT OF PISON MODEL DCDs 8

ITEM No.5 BACKUP COMMUNICATION LINKS FROM SLDCs & STRATEGIC LOCATIONS IN THE NETWORKS OF ULDC SCHEME

8

ITEM No.6 RETROFITTING / REPLACEMENT OF OLD PROTECTION SCHEMES/EQUIPMENTS BY PGCIL

10

ITEM No.7 UTILISATION OF 25 % SHORT TERM OPEN ACCESS CHARGES BY PGCIL

11

ITEM No.8 PERFORMANCE OF WR GRID DURING OCTOBER 2007 TO DECEMBER 2007

13

ITEM No.9 REVISION OF SETTINGS OF THE df / dt UFLS RELAYS IN THE WR

18

ITEM No.10 ANTICIPATED POWER SUPPLY POSITION FOR THE PERIOD JANUARY 2008 TO MARCH 2008

20

ITEMS FOR INFORMATION

ITEM No.11 PAYMENTS OF UI AND REACTIVE ENERGY CHARGES 22 ITEM No.12 TESTING OF SPECIAL ENERGY METERS 24 ITEM No.13 COMMISSIONING OF TRANSMISSION LINES AND GENRATING

UNITS 25

ITEM No.14 ONGOING TRANSMISSION SCHEMES IN WESTERN REGION 26 ITEM No.15 ONGOING GENERATION SCHEMES IN WR 26

ANY OTHER ITEM 27 16.1 PASSING OF BENEFIT TO WR BENEFICIARIES BY NTPC

DUE TO CHARGING ON INFLATED CAPITAL BASE DURING THE PERIOD 2001-2004

27

16.2 IMPLEMENTATION OF REVISED UI CHARGES W.E.F. 7TH JAN 2008 AS PER CERC ORDER

28

16.3 NATIONAL HVDC PROJECT 29 16.4 PRESENTATION ON PUMPED STORAGE SCHEME IN WR

BY THDC 31

16.5 EVACUATION OF POWER BY NEW IPPS 32 16.6 MONITORING OF ON GOING GENERATION SCHEMES 32

ITEM No.16

16.7 GUIDELINES FOR REQUIREMENT OF LAND, WATER FOR NEW PROJECTS

33

ITEM No.17 DATE AND VENUE OF NEXT WRPC MEETING 33

Minutes of 6th WRPC meeting held on 11th Jan 08

ANNEXURES

Annexure

Particulars

Annexure- 1(A) List of participants of TCC meeting held on 10.01.2008 at Port Blair

Annexure- 1(B) List of participants of WRPC meeting held on 11.01.2008 at Port Blair

Annexure- 1.1 CSEB. Letter dated 19.11.2007

Annexure-1.2 GETCO letter dated 24.10.2007

Annexure-8.1 (a) Frequency particulars of Western Region for the period October, 2007 to December, 2007

Annexure-8.1 (b) Power Supply Position for period from October, 2007 to December, 2007

Annexure-8.2 Voltages at important 400 kV substations during October, 2007 to December, 2007

Annexure-10.1 Anticipated power scenario in WR from January 2008 to March 2008

Annexure- 14 Progress of transmission lines under construction in Western Region

Annexure- 15 New generation schemes to be added in 200-08 and during 11th Plan in Western Region

Annexure- 16 The copy of presentation made by THDC

Minutes of 6th WRPC meeting held on 11th Jan 08 1

MINUTES OF 6th MEETING OF WESTERN REGIONAL POWER COMMITTEE HELD ON 11th JANUARY 2008 AT PORT BLAIR

The TCC and 6th WRPC meetings were held on 10th & 11th January 2008

respectively at Port Blair. The list of the participants are at Annexure-I (A) & I (B)

respectively.

Shri R.S. Sharma, Director (Comm.), NTPC extended warm welcome to all the

Members, special invitees and participants attending the meeting of

WRP Committee. He informed that NTPC Ltd. have planed generating capacity

addition of 21400 MW in the 11th Plan, out of which 1240 MW has already been

commissioned and 1000 MW is in the process of commissioning by March 2008.

While expressing his concern about the difficulties in arranging RLNG and Naptha

for their gas based stations, he said that NTPC have been making all efforts to tie-up

the fuel availability to enable the operation of the gas based station to their full

capacity. He stated that the operation of the grid at low frequency and loss of

generation due to any reason is a matter of concern and on behalf of NTPC he

assured that all the required actions will be taken by them to do the needful.

Shri Rajib Ranjan, Chairman, WRPC / CSEB thanked NTPC for hosting this WRPC

meeting at Port Blair and for making excellent arrangement for the meeting and stay

of WRPC Members and participants. He stated that during the last quarter, which

was a part of Rabi season, the Western Regional Grid met the maximum load of

39,500 MW during October to December 2007 whereas the peak shortage was of

the order of 9,500 MW in the month of December 2007. The system frequency had

touched 48.8 Hz. on number of occasions and even gone below, which was a matter

of concern. As the irrigation load will continue up to the month of February, he urged

the constituents to take all necessary measures so as to maintain safe grid operating

parameters. He said that maintenance of grid frequency at appropriate level is

responsibility of all the constituents in the integrated operation. He stated that on

number of occasions, it has been observed that due to over drawal by NR

constituents, the grid frequency had gone below 49 Hz. even when, the WR

constituents were under drawing. This has resulted in otherwise avoidable operation


of UF relays in WR system. He said that on behalf of WR, he took-up the matter with

the Chairperson, CEA and requested for his intervention for safe operation of the

grid. He informed that Chairperson, CEA on 4th December 2007 called a Joint

Meeting of WR & NR and gave direction for utilization / scheduling of about 800 MW

unrequisitioned power available on Naptha fuel from NTPCs gas based stations in

WR & NR. As the operation of the grid at low frequency continued, a letter was

addressed to Secretary (Power), Govt. of India on behalf of WRPC requesting him

for immediate intervention in the matter. So far as, transmission system for

evacuation of power from Krishnapatanam UMPP is concern, he said that a meeting

was called by Chairperson, CEA with the beneficiaries of WR on 10th December

2007 at Pune and further meeting is excepted to be called by CEA shortly. He also

intimated that a meeting was held at New Delhi on 16th November 2007 among CEA,

APTRANSCO, PGCIL, BHEL and CSEB wherein, APTRANSCO and CSEB agreed

and gave their consent for shifting of HVDC terminals of Lower Sileru-Barsoer

National HVDC line to Kolhapur – Belgaum line as proposed by CEA. He informed

that during the last quarter 1000 MW capacity was added to the Western Regional

grid. Also, PGCIL commissioned Sipat-Seoni 765 kV Ckt.-I and 400 kV Bina-Nagda

D/C line. He requested the constituents to closely monitor the progress of

construction of new generating stations so as to avoid any slippages and timely

commissioning of the units. He said that on behalf of WRPC he has invited

Chairperson, CEA to attend this meeting. He then requested Chairperson, CEA to

address WRP Committee.

Shri Rakesh Nath, Chairperson, CEA thanked Chairman, WRPC / CSEB for inviting

him to attend the meeting of WRP Committee. On the issue raised by Chairman,

WRPC regarding low frequency operation of the integrated Western, Eastern, North

Eastern and Northern Regional Grid, Chairperson, CEA said that a Joint Meeting of

WR and NR was convened by him. It was observed that due to shortage of Gas /

LNG about 800 MW of capacity, operating on liquid fuel, was remaining unutilized in

NR and WR and accordingly it was decided to schedule this capacity to overdrawing

states of the two regions. However, due to Naptha shortage, NTPC could not sustain

the operation for all their stations even on liquid fuel, he said. Subsequently, ONGC

has taken shut down on gas platform resulting in reduction of gas supply to these

stations, which further created problems. He opined that shut downs on the gas


platform should be properly coordinated by ONGC with NTPC & other power

authorities as it was not desirable to take shutdown on gas platform when the

demand in all the regions is at peak. Regarding availability of LNG, he stated that

the CEA has requested NTPC to procure at least one ship exclusively for their gas

based stations and it is reported that NTPC is making effort to arrange the same. He

enquired from NTPC about the arrangements they are making for availability of LNG

on long term basis to meet the total requirements of their gas based stations.

As regard to other general issues concerning power sector, Chairperson, CEA

informed that we have a programme of capacity addition for about 78000 MW in the

11th Plan against which 6700 MW have been commissioned & more than 60000 MW

is under execution. He appreciated the fact that about 20000 MW is being executed

in the private sector compared to only 2000 MW is the 10th Plan. He urged all the

constituents to ensure placement of orders for all 11th Plan scheme by March 2008

and to monitor their program continuously. He highlighted various problems

experienced during executions of projects and requested the constituents to initiate

timely advance actions to achieve the capacity addition targets during their 11th Plan.

He also highlighted problems regarding coal availability and assured the constituents

that CEA is looking into these problems and trying to sort out the issues.

Chairman, WRPC/CSEB then requested other members to express their views on

issues, which are not in agenda.

Smt. V.L. Joshi, Principal Secretary, Govt. of Gujarat & Chairman, GUVNL raised the

issue concerning grid discipline for the region as a whole. She said that the

WRP Committee has been discussing this issue repeatedly and has expressed

concern about the grid indiscipline, specially, by Northern Region. Though the

attempt has been made to address the issue at the joint meeting level by CEA /

MoP, situation has not improved and requires major intervention for disciplining the

Northern Region.

While endorsing the concern expressed by Chairman, GUVNL, Shri A.B. Pandey,

MD, MSEDCL stated that Maharashtra have shortage of about 5000 MW. In order to

control the drawal they are carrying out load shedding in ruler areas to the extent of


12 hrs and in major cities in Maharashtra except Mumbai to the extent of 4 to 7 hrs.

He stated that the deficit states of Northern Region should also take adequate

measures to enforce the planned load shedding so as to control overdrawal from the

grid.

Thereafter, the Agenda was taken up for discussion.

ITEMS FOR DISCUSSIONS

ITEM No.1: CONFIRMATION OF THE MINUTES OF THE 5th MEETING OF

WRP COMMITTEE

1.1 Member Secretary, WRPC stated that the minutes of 5th meeting of

WRP Committee held on 6th October 2007 at Panjim, Goa were sent to the Members

vide letter No. A.S./Min./WRPC/2007-08/10135 dated 19th October 2007. The

comments were received from CSEB and GETCO, the copies of which are enclosed

at Annexure 1.1 & 1.2.

The Committee discussed the comments received as above and the minutes were

confirmed with the following amendments:

Para –2 of Item No. 4.2.4 (page -14) - “The matter was discussed and

WRP Committee gave their concurrence for the above transmission scheme” to be

replaced with “The matter was discussed and WRPC gave in principle concurrence

subject to the condition that all the WR constituents have confirmed the minutes and

have agreed for the proposed scheme.”

Para 16.1.4 (Page - 30) to be replaced with “It was finally decided after considering

various options and views expressed by constituents that DD & DNH shall withdraw

the petition from GERC and approach CERC for deciding the wheeling of

Central Sector Power.”


Para 16.1.5 (Page - 30) to be replaced with “Executive Engineer, DD & DNH

requested that their system should be fully connected to CTU network so that they

can draw their full requirement through CTU network.”

1.2 The Minutes of 5th meeting of WRP Committee held on 6th October 2007 were confirmed with amendments listed in Para 1.1 above. ITEM No. 2: SCHEDULING OF UNREQUISITIONED POWER OF KAWAS &

GANDHAR GPS OF WR IN JUNE 2007

2.1 Member Secretary, WRPC stated that on 7th, 10th & 11th June 2007, un-

requisitioned power of Kawas and Gandhar GPS was scheduled by WRLDC to

Northern Region, as NR was overdrawing from the grid. Since, the constituents of

NR to whom the above un-requisitioned power has been scheduled could not be

identified; NTPC took up this matter in the 4th meeting of WRPC held on

29th June 2007. It was decided that the matter should be taken up with NRPC.

Accordingly, WRPC secretariat took up the matter with Member Secretary, NRPC to

identify the NR constituents to whom this power should be booked. Member

Secretary, NRPC intimated that since this power was scheduled by WRLDC

unilaterally, NR constituents did not agree to accept the power. The matter

subsequently came up for discussion during the 6th meeting of NRPC held on 25th

October 2007 wherein, Chairman, WRPC/CSEB suggested that the above

unrequisitioned surplus power from Kawas & Gandhar GPS on 7th, 10th & 11th June

2007 may be booked to the constituents of both, the Western Region and the

Northern Region who had overdrawn power from the grid so as to resolve the issue.

2.2 Member Secretary, WRPC further stated that on the basis of 15 minutes time

block SEM data furnished by WRLDC, WRPC secretariat have identified the

constituents of WR & NR who have overdrawn power from the grid during the period

when the above mentioned unrequisitioned power was scheduled to NR by WRLDC.

On the basis of above, it is proposed to book the unrequisitioned power to the

constituents of WR and NR. Accordingly WRPC vide letter dated 16th Nov. 2007

sent the proposal to Member Secretary, NRPC for their examination and

concurrence. Out of total 1.7884 MUs of unrequisitioned power during the above


three days, the booking to WR and NR will be as follows:

(All fig. in MUs)

Un requisitioned power scheduled from

Proposed scheduling of un-requisitioned power

Date

Kawas Gandhar WR NR

Total

07.06.07 0.3579 0.4920 0.0744 0.7756 0.8500 10.06.07 0.0000 0.1125 0.0221 0.0904 0.1125 11.06.07 0.3580 0.4680 0.1816 0.6444 0.8260

2.3 Member Secretary, WRPC informed that Commercial Sub-Committee of

NRPC discussed this proposal in its 6th meeting held on 11th December 2007 and

NR constituents concurred to it as a special case and subject to the condition that

NR states would pay only variable charges of the energy booked post facto from

Kawas and Gandhar GPS on 7th, 10th and 11th June 2007. Other charges like

capacity charges, incentives, etc. would not be borne by NR states. The UI accounts

for the aforesaid days would be revised taking into account the post facto booking of

energy from Kawas & Gandhar GPS. This was subsequently endorsed by NRPC, in

its 7th NRPC meeting held on 20th December 2007.

The matter was discussed in 48th Commercial Committee meeting of WR held on

13th Dec. 2007 and the committee agreed to the following:

(a) The WR overdrawing States, to whom the above energy is scheduled, will

pay only variable charges to NTPC Kawas & Gandhar GPS as applicable.

(b) No incentive will be paid to Kawas & Gandhar GPS for post facto

scheduling of un-requisitioned powder from Kawas and Gandhar GPS on

7th, 10th and 11th June 2007.

(c) This proposal has been accepted as a special case.

(d) UI accounts for the concerned week shall be revised to account the above

scheduled energy.

(e) The recommendation of the Commercial Committee shall be put up to

WRP Committee for its approval.


2.4 The above recommendations made by Commercial Committee were discussed by the TCC in its meeting held on 10th January 2008 and agreed to as a special case. The WRP Committee discussed the matter and ratified the decision of the TCC as a one-time settlement of the issue. ITEM No. 3: SCHEDULING AND COMMERCIAL METERING LOCATIONS FOR

RGPPL 3.1 Member Secretary, WRPC informed that as per the information received from

RGPPL, their gas based power plant at Ratnagiri has been declared as ISGS by

Ministry of Power. MSEDCL has been tentatively allocated 95 % of power and the

remaining 5 % is to be allocated to other states within or outside the region, which is

under active consideration of MoP. However, in the absence of allocation for 5%,

entire RGPPL generation at present is sold to MSEDCL. RGPPL further intimated

that out of three blocks, two blocks are in operation at RGPPL and the third block is

expected to be put in operation shortly.

3.2 In order to facilitate all necessary activities related with scheduling, energy

accounting etc. RGPPL requested WRLDC to specify (i) Specification of the Energy

Meters to be installed, Make and Source, (ii) Location of the meters to be installed

and (iii) System of Energy accounting, scheduling etc. to be followed. Accordingly,

WRLDC have estimated requirements of SEMs and DCDs for RGPPL.

3.3 Member Secretary, WRPC further informed that the Commercial Committee in

its 48th meeting held on 13th Dec. 2007, discussed the matter. Since RGPPL has

been declared as ISGS, its scheduling and energy accounting has to be done as per

IEGC. As such, estimation of requirement/installation of SEMs etc. for accounting of

its energy is required to be done by RLDC/CTU. Considering this, the Committee

approved the estimated requirement of SEMs & DCDs i.e. 20 Nos. SEMs and 2 Nos.

DCDs, cost of which will be reimbursed by the beneficiaries of WR to PGCIL in lump-

sum in line with the earlier decisions of WRE Board / WRP Committee. RGPPL was

also requested to take up the matter with MoP to expedite allocation of power.


3.4 The TCC members in meeting held on 10th January 2008 discussed the above matter and opined that the SEMs / DCDs of such project which are not Central PSUs should be provided by the project and their cost be borne by the concerned beneficiaries of that station.

The WRP Committee agreed to the recommendation of the TCC. Accordingly, the cost of 20 Nos. SEMs and 2 Nos. DCDs for RGPPL will be borne by the RGPPL.

ITEM No. 4: REPLACEMENT OF PISON MODEL DCDs

Member Secretary, WRPC stated that WRLDC vide letter No. WRLDC/ OS/

1510/1207 dated 13th December 2007 intimated that presently WR is having around

115 Nos. of DCDs for down loading SEMs data. Out of these 65 Nos. are of PISON

model, which has become obsolete. WRLDC intimated that M/s Secure Meters is not

accepting AMC for the above model due to lack of internal parts and this model is

getting faulty frequently. In view of this, WRLDC proposed to replace the PISON

model DCDs with Analogic Model DCDs in a phased manner. The matter was

discussed in the 48th Commercial Committee meeting held on 13th Dec. 2007 and

the proposal of WRLDC to replace 65 Nos. PISON model DCDs with Analogic Model

DCDs in a phased manner was agreed to.

The TCC in meeting held on 10th January 2008 agreed to the proposal for replacement of 65 Nos PISON model DCDs with Analogic Model DCDs in a phased manner, the cost of which will be reimbursed by the beneficiaries of WR to PGCIL in lump sum in line with the earlier decisions of WRP Committee. The WRP Committee endorsed the decision of TCC.

ITEM No.5: BACKUP COMMUNICATION LINKS FROM SLDCs & STRATEGIC LOCATIONS IN THE NETWORKS OF ULDC SCHEME

5.1 Member Secretary, WRPC stated that WRP Committee in its 5th meeting held

on 6th October 2007 discussed the proposal of WRLDC for backup communication

links from SLDCs and strategic locations in the network of ULDC scheme of WR in


order to improve the data reliability from SLDCs to RLDC and vice versa. The

proposal included (i) stand by arrangement from SLDCs at Jabalpur, Gotri, Bhilai,

Kalwa and at strategic locations at Vindhyachal, Bhadravati and Raipur by availing

bandwidth from Telecom Deptt. of PGCIL through 7 Nos. E-1 and radio link from

Kalwa to WRLDC and (ii) payment of recurring expenditure of approx. Rs. 23.10

Lakhs per year for the above-proposed standby arrangement and one time

expenditure of approx. Rs. 4.00 Lakhs towards cost for radio links from Kalwa to

WRLDC. The WRP Committee directed that the above proposal of WRLDC may first

be discussed in the ULDC Project Coordination Committee and thereafter it may be

put-up to TCC/WRPC.

5.2 Accordingly, the matter was discussed in the 3rd meeting of SCADA / EMS

issues held on 6th November 2007 at WRLDC office, Mumbai. In order to arrive at a

comprehensive solution, it was decided that the matter be looked into detail by a

committee of Regional Constituents having one member each from the constituents,

member from WRLDC and with a member from WRPC Secretariat as convener.

WRPC Secretariat convened a meeting on 17th Dec. 2007 with the members from

the constituents wherein the proposal of PGCIL for back up communication scheme

was discussed in detail. The constituents agreed to the need for back-up

communication links between SLDCs/Strategic locations and WRLDC. At the same

time need for back-up links between Sub-LDCs to SLDCs was also felt. However,

instead of providing the stand by arrangement through bandwidth provided by PGCIL

Telecom network, it was proposed to have these links through VSAT/Radio link. The

constituents agreed to the following VSAT/Radio back up links:

(i) SLDC Gotri to WRLDC

(ii) SLDC Jabalpur to WRLDC

(iii) SLDC Bhilai to WRLDC

(iv) SLDC Kalwa to WRLDC

(v) Sub-LDC Indore to SLDC Jabalpur

(vi) Sub-LDC Bhopal to SLDC Jabalpur

(vii) Strategic locations Viz. Vindhyachal, Bhadravati, Raipur and Gwalior to

WRLDC

It was further agreed that since setting of VSATs may take some time, 2 Nos. E1

might be provided at Jabalpur and Bhilai to ensure availability of important data from


these areas. Necessity for continuation of these two E1 switching may be

reviewed after commissioning of VSATs/Radio back-up link. In addition OPGW link

between Gotri to Jambuva & Gotri to Asoj was also agreed to. PGCIL were

accordingly requested to revise their proposal for back-up communication scheme in

line with the above.

5.3 The TCC in its meeting held on 10th January 2008 discussed the above proposal. PGCIL pointed out that the cost of the revised proposed scheme would be very high. The other points which also emerged in the TCC meeting was that (i) the expenditure for sub-SLDC to SLDC link should be borne by the concerned SLDC and not loaded in the regional system and (ii) the commercial implications of VSAT vis-a-vis earlier proposal by PGCIL should be examined. Based on this, PGCIL was requested to give a comprehensive proposal indicating total financial implications / details. PGCIL agreed to the same. It was also agreed that the proposal will be discussed by the above referred committee and its recommendations shall be put up to TCC / WRPC for the decision. WRP Committee endorsed the decision of TCC.

(Action: PGCIL)

ITEM No.6: RETROFITTING / REPLACEMENT OF OLD PROTECTIION SCHEMES / EQUIPMENTS BY PGCIL

6.1 Member Secretary, WRPC stated that PGCIL vide letter No. WRTS/ O&M/

R/141/ 2202 Dated 26.09.2007 proposed retrofitting of old protection schemes,

replacement of obsolete Protection & PLCC system, replacement of obsolete ABCBs

and replacement of Gapped LAs with Gapless LAs at their various sub stations. The

proposal includes the following works:

(i) Replacement of old and obsolete relays (172 nos.) at various sub-stations

- Rs. 6.10 Crores

(ii) Replacement of 16 nos. ABCBs at Bhilai, Indore & Asoj

- Rs. 6.54 Crores

(iii) Replacement of obsolete Protection and PLCC System under 220 kV Kawas Transmission System

- Rs. 2.53 Crores

(iv) Replacement of obsolete Protection and PLCC System at 220 kV Vapi Sub-station

- Rs. 0.39 Crores

(v) Replacement of Gapped Las with Gapless LAs at various Sub-station

- Rs. 2.71 Crores


This matter was discussed in 98th Protection Committee meeting of WRPC held on

23rd & 24th Oct. 2007. PGCIL in the meeting informed that the consent of

beneficiaries is required for filing of petition for additional capitalization on account of

these works. They also intimated that whenever new equipment / system replaces

the old equipment / system, the original value of the equipment / system will be

deducted from the gross block. The Protection Committee discussed the technical

aspects of the proposal. It was observed that the proposal was in line with the

protection philosophy discussed in various meetings of Protection Committee and in

the interest of secure and stable grid operation. The Protection Committee therefore

recommended acceptance of the above proposal of PGCIL.

6.2 The TCC in its meeting held on 10th January 08 discussed the matter and endorsed the recommendations of the Protection Committee. 6.3 The WRP Committee deliberated and accorded their approval to the proposal of PGCIL for retrofitting/replacement of old protection schemes/equipment as given Para 6.1 in phased manner. Also, whenever new equipment / system replaces the old equipment / system, the original value of the equipment / system will be deducted from the gross block. ITEM No.7: UTILISATION OF 25 % SHORT TERM OPEN ACCESS CHARGES BY PGCIL

7.1 Member Secretary, WRPC stated that under the provisions of CERC (Open

Access in Inter-state Transmission) Regulations, the transmission licensee, CTU or

STU as the case may be, shall retain 25% of the charges collected from the Short

Term Customer for use of its intra-regional Transmission system and 12.5% of the

charges collected from the short-term customers for use of its inter-regional system

and balance is to be adjusted towards reduction in the transmission charges payable

by the Long-Term customers. Further, the Commission in its order dated 30.01.04 in

petition No. 48/2003 (Suo moto), have directed that the short term open access

revenue retained by the transmission licensee, is expected to be utilised in the core

activity of building new transmission system. He informed that in view of these

provisions, CSEB vide letter dated 29.10.2007 desired to discuss the issue and know


from PGCIL - (i) the year wise amount of STOA charges (25% component) collected

by PGCIL after introduction of Open Access and (ii) year wise utilization of above

amount by PGCIL against specified / identified works.

7.2 The matter was discussed in 48th Commercial Committee meeting held on

13th December 2007 wherein PGCIL stated that the details of STOA charges

collected from all the regions viz. region wise payment received, payment made and

amount retained and calculations thereof towards reduction in transmission charges

payable by long-term customers are furnished to all the constituents on monthly

basis alongwith the monthly transmission charges bill. PGCIL intimated that in the

absence of clear guideline from the regulator, the money so collected are put into

transmission business as income which is their core activity and utilizing the same

for transmission schemes. PGCIL was requested to furnish year wise details of the

amount collected from Short Term Open Access customers for use of Intra-regional

Transmission system and inter-regional system in respect of Western Region,

amount adjusted towards reduction in the transmission charges payable by the

Long-Term customers and the balance amount retained/utilized by PGCIL for the

core activity of building new transmission system since the introduction of CERC

(Open Access in Inter-state Transmission), Regulation. 7.3 PGCIL stated that the charges so collected by them are deployed in their core activity. Member Secretary, WRPC stated that the TCC in its meeting held on 10th January 08 requested PGCIL to furnish the details of year wise amount of STOA charges (25% component) collected by them. PGCIL agreed to furnish the same. The WRP Committee discussed the issue and beneficiaries opined that the 25% component of STOA charges retained by PGCIL needed to be reflected in Capital Expenditure of any of the PGCIL projects. It was decided that this issue should be raised in CERC during the hearing on transmission tariff for new projects of PGCIL.

(Action: PGCIL)


ITEM No.8: PERFORMANCE OF WR GRID DURING OCTOBER 2007 TO DECEMBER 2007

8.1 System Performance

Member Secretary, WRPC stated that during the period October 2007 to December

2007, the grid operated in the frequency range 49.0 Hz and 50.5 Hz for 85.70% of

time. The percentage time, when the frequency was within this range varied

between 81.64% and 91.99%. During December 2007, frequency remained below

49.0 Hz. for 18.36% of time. The maximum unrestricted demand of the region was

39449 MW as recorded during October 2007. The maximum demand met during

this period was 30835 MW, which was registered during November 2007. The peak

shortfall of the Western Region ranged from 7726 MW to 10104 MW. Capacity

shortage during this period was of the order of 20.04 % to 25.61 % and energy

shortage was in the range of 15.00 % to 18.14 %. The details of frequency profile

during the above period at Annexure-8.1 (a) and the details relating to registered

demand /unrestricted demand, energy availability and energy requirement during the

above period at Annexure-8.1 (b) were noted by the Committee.

He said that overdrawl by NR utilities from the interconnected grid at low frequency

had been continuously remaining substantially large since October 2007. WR utilities

as a result could not avail their due share of scheduled power as they had to resort

to large quantum of load shedding towards their commitment to maintain grid

discipline. In pursuance of the suggestion given by the Committee in 5th WRPC

meeting held on 6th October 2007, Chairman WRPC/CSEB had requested

Chairman, CEA to take joint meeting with the NR and WR constituents to address

the problem as no improvement in the above situation had taken place despite the

attention drawn by him of the NR constituents in 6th meeting of NRPC held on

25th October 2007 to this issue.

Upon above request, Chairman, CEA had taken a meeting of NR and WR

constituents on 4th December 2007 at New Delhi, wherein the issue of prevailing low

frequency scenario was discussed. To help improve the power supply situation in NR

& WR, NTPC were requested to pursue immediate procurement of RLNG with the

gas companies to fully utilise the capacity of gas based power stations of NTPC. In


the meantime, to ensure utilisation of about 800 MW liquid fuel capacity at NTPC

stations in NR and WR, WRLDC/NRLDC were authorized to schedule the un-

requisitioned liquid power to the overdrawing utilities, which were identified for the

purpose. Member Secretary, WRPC said that it has been observed that the capacity

at Kawas continued to remain unutilized till 26.12.2007. He further said that since the

first week of January 2008, due to reduction in supply of Naphtha fuel, the Declared

Capacity at Kawas GPS of NTPC had even dropped to around 100 MW.

Chairperson, GUVNL stated that persistent overdrawl by NR is causing continuous

low frequency operation which is posing serious danger to the security of entire

interconnected N-E-W grid. Even as heavy load shedding is being resorted to, by the

disciplined WR utilities to maintain the grid frequency, they are in turn getting

penalized in not getting their due share of power. Avoidable AUFLS relay operations

are taking place in WR further causing unplanned interruption to consumers' loads

for no fault of theirs inviting resentment and public-unrest.

Member Secretary, WRPC stated that GETCO vide letter dated 8.1.2008 had

intimated that UTs of DD and DNH continue to overdraw even at frequency below

49.0 Hz and no load relief is coming from them. Under these conditions Gujarat

State is compelled to take load shedding even under the condition of no overdrawl

by them. It has been requested by GETCO that appropriate action may be taken by

the above UTs to restrict continuous overdrawl by them at frequency below 49.0 Hz.

He said that the matter was discussed in TCC meeting on 10.1.2008. TCC has

suggested the UTs not to rely on overdrawl through UI but to make arrangements to

purchase power from other/outside sources to avoid overdrawl by them.

Representative of UTs agreed to initiate necessary action accordingly.

WRP Committee noted the same.

Managing Director, MSETCL stated that in the current Rabi season, the peak

shortage in Maharashtra has gone up to 5000 MW. Even with the generation

available at Dabhol plant of RGPPL, the major city areas like Pune, Bhandup and

Vashi are facing load shedding for 4 hours to 7 hours. The Maharashtra system is

not getting its due share and its underdrawl from the grid is between 700 MW to

800 MW. Frequent operation of rarely-supposed-to-operate AUFLS grid-security


mechanism has not brought any improvement in the situation. Consumers are not

able to understand as to what is happening, as the utilities of neighboring regions are

not able to contain their persistent overdrawls from the interconnected N-E-W grid.

GM, WRLDC said that the surplus power of Kawas GPS was not requisitioned by the

NRLDC till 26.12.2007 despite the joint decision taken by both the regions. The

overdrawl of power from the interconnected grid resulted the system frequency

frequently crossing over the first insecurity level of 48.8 Hz. The system frequency

went further low to 48.64 Hz on 28.12.2007. The defense mechanisms under AUFLS

had not been able to provide sustained and sufficient relief in load. The relief from

AUFLS at 48.8 Hz was too less compared to the overdrawl quanta thereby failing to

bring in any immediate improvement of system frequency. It appeared that AUFLS

relays were intentionally taken out of service by the utilities or the connected feeders

were not able to provide any appreciable relief in load.

Chairman, CEA said that nevertheless States in Northern Region are also facing

very heavy shortages. In many States, the power cuts prevail for 10-12 hours. He

said that as per the decision taken in joint meeting with NR and WR on 4.12.2007,

the overdrawing NR States were followed up to take surplus NTPC power upon

which schedule was being given by them but NTPC stations could not sustain on

Naphtha power for long. He intimated that power availability situation is likely to

improve in mid-January 2008 in Southern Region on account of Sankranti festivity

period. The surplus power in SR could be utilised by NR & WR utilities during that

period. Regarding fuel availability at NTPC's gas based generating stations; he said

that in the joint meeting of 4.12.2007, NTPC were requested to arrange

RLNG/Naphtha for its gas-based power stations in WR so that full capacity is

available for use. He enquired NTPC about the progress achieved in this regard.

Director (Commercial), NTPC said that while long-term arrangement of RLNG is tied

up which is expected to materialize soon, RLNG supply of full cargo by Petronet is

expected to commence by 25th January 2008. The supply is expected to increase

with the augmentation of the Petronet LNG terminal. He further stated that the

Naphtha fuel requirement for Kawas GPS at present is possible only through

physical transportation, which is not adequate to ensure full Capacity availability on


daily basis. Also Naphtha storage capacity at Kawas can last only up to 3-4 days,

whereas the Naphtha suppliers require procurement commitment for at least one-

month period. The utilities of WR viz. MP, DD & DNH, TPC (through MSETCL for

Mumbai) were requested to intimate their monthly commitment to avail Naphtha

power to NTPC so as to enable it to take action this regard. Director (Commercial),

NTPC further stated that as PMT gas availability is on allocation basis, the supply

being received is less than the requirements. It would be worthwhile in case the

authorities make an additional allocation to NTPC till long-term arrangement for

RLNG gets materialized. Chairman, CEA said that NTPC might formally intimate the

requirement to CEA, so that appropriate authorities are requested to help in facing

the shortage situation. NTPC agreed to do the needful.

The Committee further discussed the issue of overdrawl by NR utilities at frequency

below 49.0 Hz and emphasized the need for taking adequate and effective load

regulatory measures immediately by the overdrawing utilities and ensure operation

of AUFLS relays so that overdrawl by them is restricted and WR utilities are able to

draw their due share of power as per the schedule. The WRP Committee also noted

the revision in UI rates upwards with maximum rate of Rs 10.00 per unit vide

Hon’ble CERC order dated 28.12.2007, which has been implemented w.e.f.

7.1.2008. The Committee recalled that proposal for revision of UI rates was also

discussed in 3rd WRPC meeting held on 28.2.2007 wherein it was expressed that as

has been observed in the past raising UI rate was not likely to bring improvement in

grid discipline and had suggested introduction of penal rate. The penalty amount

payable by the overdrawing utilities could be computed for each 15-minute time-

block for each quantum of 0-50 MW (or part thereof) of overdrawl from the grid.

Chairman, CEA said that in case of consensus opinion the suggestion could be

brought to the notice of Hon'ble Commission for favourable consideration.

After deliberations, the WRP Committee was of the view that a second joint meeting

of WR and NR may be taken by Chairman, CEA to address the issue of low

frequency operation in the current Rabi/Winter season and review the position on the

extent up to which the decisions taken in the first joint meeting of 4.12.2007 were

implemented and problems encountered in implementing these decisions. In the

proposed meeting a consensus opinion may also be evolved for recommending


suitable deterrents to restrict overdrawls by the utilities at low frequency, which is

endangering the grid security. Chairman, CEA agreed and intimated that the joint

meeting will be arranged early.

8.2 Voltage Profile The WRP Committee noted the month-wise detail of voltages at important 400 kV

substations during the month of October 2007 to December 2007 is at Annexure-8.2.

During this period, low voltages were recorded at 400 kV Gwalior, Jetpur and Indore

substations ranging between 369 kV, 354-360 kV and 356-378 kV respectively. The

high voltages were recorded at Bina and Dhule ranging between 429-436 kV and

435-440 kV respectively.

It was noted that the low voltage was encountered at Indore for short periods in

October 2007 when 400 kV lines in the vicinity were taken out for shut down to

attend maintenance work and due to forced outage of 100 MVAR capacitor bank at

Indore. The voltage profile at Indore had improved after the capacitor bank was

taken into service and 400 kV Bina-Nagda d/c line commissioned in October 2007

end. The voltage at 400 kV Gwalior substation had improved from October 2007

onwards with loading on 400 kV Agra-Gwalior remaining within the permissible

range. The low voltage profile around Jetpur had also improved, with maximization of

generation availability and appropriate load regulatory measures taken in the vicinity.

The Committee noted other actions taken to ensure smooth voltage profile in the grid

as per the following:

i) Two 50 MVAR reactors, one each on both the circuits of 400 kV Indore-

Asoj line were removed at Indore end.

ii) Two 50 MVAR line reactors one each on 400 kV Bhusawal-Koradi ckt I

and 400 kV Parli-Lonikand ckt I at Bhusawal and Parli ends were removed

respectively.

iii) RBPH machines at SSP were operated in synchronous condenser mode

upon advise by WRLDC in the real-time as per the methodology approved

in 5th WRPC meeting.


The Committee further noted that as reported by the utilities or agreed to in the

earlier WRPC meetings, following actions were initiated to control high voltages

during the low load periods:

i) The installation by PGCIL of 63 MVAr reactor at 400 kV Damoh sub-

station is expected to take place in March 2008 whereas the installation

and commissioning of 125 MVAr bus reactors each at 400 kV Khandwa

and Dehgam sub-stations is expected to complete by June/July 2008.

ii) Shunt Controllable reactor at 400 kV Padghe s/s in Maharashtra is likely to

be commissioned by MSETCL in October 2008.

iii) The installation of 125 MVAr bus reactor each at Dhule, Indore, Kasor sub-

stations by MSETCL, MPPTCL and GETCO and 80 MVAr bus reactor

each at Karad and Nardipur substations by MSETCL and GETCO as was

agreed and later noted in the 4th WRPC meeting is to be taken up by the

concerned agencies on priority. During 5th WRPC meeting MSETCL had

intimated that orders for 2x50 MVAR line reactors at Dhule end for 400 kV

SSP-Dhule D/c line were placed. They are expected to be commissioned

in early 2008.

PGCIL, MSETCL, MPPTCL and GETCO were requested to ensure timely commissioning of these reactors, as it would help in smoothening of high voltage profile in Western regional grid. ITEM No.9 : REVISION OF SETTINGS OF THE df/dt UFLS RELAYS IN THE WR Member Secretary, WRPC stated that the settings of UFRs and df/dt UFLS relays

were upgraded after interconnection of the NR, ER/NER and WR grids in August

2006. However, the settings of df/dt relays are dependent upon the dynamic behaviour

of the interconnected grid upon sudden loss of large quantum of generation/load in a

particular area. A detailed study based on the experience of interconnected operation

and analytical data was therefore required to be done to adjudge the rate of change of

system frequency at important locations prone to initiating an uneventual major grid

disturbance for deciding most appropriate settings of the df/dt relays. Since in the

interconnected grid, disturbance in a particular region may affect all other regions, a


joint meeting was held between RPCs and RLDCs of NR, WR and ER on 27.11.2007

at Kolkata to discuss the df/dt settings. He said that after deliberations in that meeting

the following settings of df/dt relays were recommended: -

Stage-I - df/dt to protect the combined NEW grid from loss of generation of a large

power station.

Stage-II - df/dt to protect the split grid from loss of generation of a large power station.

Setting of df/dt

Relay

Northern Region Western Region Eastern Region

Stage-I 2000 MW at 0.1 Hz/sec at 49.9 Hz

2000 MW at 0.1

Hz/ sec at 49.9 Hz

800 MW (600 MW ER + 200 MW SR) at 0.125

Hz /sec at 49.9 Hz

Stage-II 2000 MW at 0.2 Hz/sec at 49.9 Hz

2000 MW at 0.2 Hz/ sec 49.9 Hz

Stage-III- df/dt to protect the individual regional grid/state grid from loss of generation

in the event of isolation.

He further said that as against above, the df/dt load shedding scheme already agreed to and implemented in WR is as under:

Settings Recommended

Load Relief

Implemented Load Relief

Hz/(Hz./Sec) Region Region GETCO MPPTCL MSETCL TPC CSEB

(MW) (MW) (MW) (MW) (MW) (MW) (MW)

49.2/0.4(St-III) 2472 2390 972 392 686 273 67

49.0/0.2(St-II) 2212 2211 972 393 687 91 68

48.8/0.1(St-I) 3023 3064 1537 546 825 91 65

Total 7707 7665 3481 1331 2198 455 200

In order to upgrade these settings to the settings decided in the Joint meeting, the cut-

off frequencies for df/dt relays in Stage-I and Stage-II are required to be raised to 49.9

Hz from 48.8 Hz and 49.0 Hz respectively.


The subject was discussed in the 382nd OCCM of WRPC held on 12.12.2007. The

members of the sub-Committee had opined that the rate of drop of frequency of 0.1

Hz/s is likely to take place in case of sudden large disturbance of loss of generation of

the order of 2000 MW when the N-E-W grid is interconnected. Under such

circumstances an instantaneous load shedding of 2000 MW at 49.9 Hz with df/dt

relays might result in rise in system frequency of the interconnected grid to unsafe

levels. Therefore, it would be appropriate if the recommended initiating levels of

operating system frequency of 49.9 Hz for df/dt relays for Stage-I and Stage-II are

instead set at 49.5 Hz.

In view of above and after deliberations the OC sub-Committee of WRPC

recommended that the initiating levels for load shedding at 0.1 Hz/s and 0.2 Hz/ s for

Stage-I & Stage-II by the df/dt relays may be set at 49.5 Hz instead of at 49.9 Hz, with

the existing levels of load relief at each stage.

Member Secretary stated that the above issue was discussed in the TCC meeting on

10.1.2008, wherein WRLDC was of the opinion that under contingency situations

encountered in interconnected grid the existing settings as above have worked as per

the expectations. In view of the same, WRLDC suggested that the initiating level as per

the existing settings of df/dt relays in WR should continue.

WRP Committee noted and advised WRLDC to discuss the matter with NRLDC and ERLDC and come out with the jointly agreed df/dt settings for final view and the implementation of the revised settings, thereafter. ITEM No.10: ANTICIPATED POWER SUPPLY POSITION FOR THE PERIOD

JANUARY 2008 TO MARCH 2008 The anticipated power supply position in the region for the period from January 2008

to March 2008 is furnished at Annexure-10.1. The WRP Committee noted the same

and observed that the regional demand is likely to remain high during this period. As

the regional grid would continue to face high shortfall during the above period, the

Committee agreed that all the concerned utilities shall have to ensure that system


frequency, voltage profile and transmission system loadings are maintained within

the permissible limits in the interest of security of the interconnected grid. All the

utilities were, therefore requested to take advance action to arrange maximum power

availability to overcome overdrawals at low frequency. All generating utilities may

ensure that the entire generating capacity is fully available. Also no capacity should

be left unrequisitioned from all ISGS stations. As discussed above, NTPC should

ensure availability of adequate quantity of Gas/LNG to enable full utilization of their

gas-based plants.

To meet any contingent conditions, all the concerned utilities of the region would strictly comply with the security measures and would ensure that the existing UFR and df/dt relays under the AUFLS scheme are operative and the load relief is obtainable as per the recommended quantum.

WRP Committee noted that the voltages profile of the grid may tend to drop below

lower permissible-levels. All concerned utilities shall, therefore, have to be ensure

that all HT capacitor banks at EHV sub-stations in the region would be in service.

SSP may follow real-time operational instructions by SLDCs /RLDC by operating

RBPH machine(s) in synchronous condenser mode for providing adequate reactive

power support and all thermal generating units in the vicinity of lower voltage profile

shall require to maximize generation of reactive power within their capability limits so

as to help in controlling low voltage in the grid.

ITEMS FOR INFORMATION

ITEM No. 11: PAYMENTS OF UI AND REACTIVE ENERGY CHARGES

11.1 As per the information received from WRLDC, the status of payment to UI

pool account and Reactive Energy Pool account as on 08.01.2008 of the current

financial year is given below: -


UI Pool Account Reactive Energy Pool Account

Constituents Dues in Rs. Constituents Dues in Rs.

GUJARAT (605,589,191) GUJARAT 4,369,311

MADHYA PRADESH 647,069,372 MADHYA PRADESH 3,917,641

CHHATTISGARH (47,990,952) CHHATTISGARH (3,267,009)

MAHARASHTRA (132,629,251) MAHARASHTRA (2,098,410)

GOA (51,567,694) GOA (1,995,576)

DD 330,186,631

DNH 92,065,042

NTPC (65,861,550)

NR Exchange 686,539,896

SR Exchange (724,514,496)

ER Exchange (124,481,737)

HVDC Vindhyachal (474,661)

HVDC Bhadravati (2,544,136)

Total 207,273 925,957

Figures in bracket ( ) are receivables from pool

MPPTCL intimated that they had recently made payment of Rs. 60 Crs. and balance

payment will be made before 31st Jan. 08. DNH stated that they would make the

payment by end Feb. 08. GUVNL requested that all payments due to them towards

UI charges may be made before 31st March 2008.

11.2 Chairman, GUVNL expressed concern about huge outstanding dues of UI

charges receivable by WR from Northern Region. CSEB pointed out that in TCC

meeting held on 10th Jan. 08, Member Secretary, NRPC intimated that about

Rs. 800 Crores from UP and Rs. 500 Crores from J&K are out standing towards UI

charges. MD, MSEDCL opined that some recovery mechanism has to be in place

for recovery of UI charges similar to that existing for recovery of NTPC dues. The

WRP Committee after detailed deliberations resolved the following:

“The non-payment of UI charges by some utilities is adversely

affecting other utilities who have to receive UI charges. As per

CERC regulations and Indian Electricity Grid Code, payment of UI


charges has a high priority and the constituents are required to

make payment within 10 days of the issue of weekly UI bill. The non

payment of UI charges amounts to indiscipline and excess drawal

of power from the grid without paying for the same causes

hardship to those constituents who are disciplined and helping the

grid for its safe and smooth operation. The constituents of Western

Region strongly felt a need to have a mechanism for recovery of

outstanding dues on account of UI charges. The one option could

be similar to the recovery mechanism for outstanding dues of

Central Sector generating Stations from the beneficiaries in case of

frequent default through deduction from their Central Plan

Allocations. A proven mechanism for timely recovery of

outstanding on account of UI charges will help in maintaining grid

discipline and safe operation of the Regional Grids. This will also

discourage the defaulting State utilities from defaulting in future

payment and regulating their overdrawal from grid’’

The Committee unanimously adopted the above resolution and requested Chairman, WRPC to take up the matter with Ministry of Power.

(Action WRPC) ITEM No.12: TESTING OF SPECIAL ENERGY METERS

12.1 Member Secretary, WRPC stated that Central Electricity Authority under the

provisions of Electricity Act 2003 has notified regulation called “Central Electricity

Authority (installation & operation of meters) regulation, 2006 which came into force

on the date of their publication in the gazette of India i.e. w.e.f. 17th March 2006. In

the above context CSEB vide letter No.CSEB/MIC/322 dated 29.10.2007 pointed out

that the interface meters are to be tested and calibrated at least once in five years.

Further, section 2 (p) of the aforesaid regulations defines “Meter” as a device

suitable for measuring, indicating and recording consumption of electricity or any

other quantity related with electrical system and shall include, wherever applicable,


other equipment such as Current Transformer (CT), Voltage transformer (VT) or

Capacitor Voltage Transformer (CVT) necessary for such purpose. As such, it is

imperative that testing of SEMs should include testing of associated CTs & VT /

CVTs also. Earlier WRE Board in its 125th Meeting held on 7th October 2004 gave

their approval for reimbursement of expenditure to PGCIL on account of calibration &

testing of Special Energy Meters on actual basis.

12.2 He further stated that the above matter was discussed in the 48th meeting of

Commercial Committee held on 13th December 2007 wherein PGCIL were requested

to intimate programme of testing of SEMs and their preparedness for testing of

associated CT/VT/CVTs etc. In the Commercial Committee Meeting Addl. GM

(Comml.), WRTS, PGCIL had intimated that in the Western Region, testing of

Special Energy Meters was carried out in the year 2004 and next round of testing will

be due in the year 2009. PGCIL pointed out that testing of CTs, VTs and CVTs

requires its disconnection and shutdown on the lines. Regular checking of CT, PT

and CVT etc. in their premises are being carried out by PGCIL and hoped that

constituents would also be carrying out routine maintenance of their equipment. So

far as testing of meters along with CT, PT, and CVT etc. in the premises of other

utilities is concerned, it involves close coordination with them. Also testing of CTs,

PTs and CVTs is time consuming process and requires shutdown of lines. PGCIL

intimated that they are exploring the possibility of arranging mobile laboratory for

testing of CTs, PTs, CVTs etc. As the testing of SEMs is due in the year 2009,

PGCIL will get geared up in this regard. PGCIL was accordingly requested to make a

detailed programme for testing of SEMs along with associated CTs, PTs and CVTs.

PGCIL was also requested to explore the possibility of planning the above

programme considering the requirement of all the regions as a whole as testing &

calibration cost may come down if the quantity of meters to be tested is large.

12.3 In this connection, during the WRPC meeting, PGCIL representative stated that as per Central Electricity Authority (Installation & Operation of meters) Regulation, 2006, testing of interface meters do not include testing of associated CTs, PTs and CVTs. As such, he opined that testing of associated CTs, PTs & CVTs is not required to be carried out along with the SEMs. However, the beneficiary states did not agree with their views. Chairman, CEA


said that IS specification on testing of meters will give the clear idea and the meter required to be tested accordingly. Member Secretary, NRPC informed that in Northern Region, PGCIL has agreed to carry out testing of associated CTs, PTs and CVTs along with SEMs.

The matter was discussed and Chairman, WRPC/CSEB stated that whatever the testing philosophy is followed by PGCIL in Northern region for testing of meters, in the context of Central Electricity Authority (Installation & Operation of meters) Regulation, 2006, the same should be implemented in Western Region as well.

ITEM No.13: COMMISSIONING OF TRANSMISSION LINES AND GENRATING UNITS

Member Secretary, WRPC intimated the details of transmission lines and generating

units commissioned since October 2007 as under: - 13.1: TRANSMISSION ELEMENTS Sl.No. Element Date of commercial operation

1 400 kV Bina - Nagda D/c 01.11.2007 2 765 kV Sipat-Seoni ckt I 01.11.2007 3 765/400 kV ICT-I at Seoni ( New S/s) 01.11.2007 4 LILO of 400 kV Bhilai-Satpura line at Seoni 01.11.2007 5 400/220 kV ICT-I at Seoni S/s alongwith

two 220 kV line bays. 01.12.2007

6 LILO of 400 kV Raipur-Korba S/c line at

Bhatapara 01.12.2007

13.2: GENERATING UNITS Sl.No

Station / Unit Capacity (MW)

Date of commissioning

1 Omkareshwar Sagar Project Unit 5 (NHDC) 65 29.09.2007 2 Omkareshwar Sagar Project Unit 6 (NHDC) 65 18.10.2007 3 Omkareshwar Sagar Project Unit 7 (NHDC) 65 27.10.2007 4 Omkareshwar Sagar Project Unit 8 (NHDC) 65 05.11.2007 5 Ratnagiri PGCL CCPP (joint venture ) GTs+STs

Block-III 740 21.11.2007


The Committee noted as above.

ITEM No.14: ONGOING TRANSMISSION SCHEMES IN WESTERN REGION

The details of ongoing transmission schemes in WR is enclosed at Annexure-14.

The important EHV lines, which are expected to be commissioned during the current

year, are as below:

765 kV lines No. of Ckt. Likely DOC 1 Sipat -Seoni Line –2 S/C Feb 2008

400 kV lines 2 Seoni- Khandwa (Quad) D/C Feb 2008 3 Nagda-Dehgam D/C Jan 2008 4 LILO of both ckt. Of SSP-Nagda at Rajgarh D/C Mar 2008 5 Khandwa-Rajgarh D/C Feb 2008 6 315 MVA 400/220 kV ICT-II at Gwalior s/s Mar 2008 7 LILO of Rourkela- Raipur at Raigarh D/C Dec 2007 8 Sipat-Raipur D/C Feb 2008 9 Ranch-Sipat (under ATS of Kahalgaon Ph II with

40% compensation at Ranchi end) D/C May 2008

220 kV lines 10 Boisar(PG)- Nalasopara S/C Dec 2007 11 Bhilad-Vapi (PG) D/C Feb 2008 12 Vapi(PG)-Kharadpada D/C March 2008 13 Vapi(PG)-Magarwada D/C March 2008

The Committee noted as above.

ITEM No. 15: ONGOING GENERATION SCHEMES IN WR

WRP Committee noted the details of on going generation schemes in WR both

under State as well as Central Sector as enclosed at Annexure-15. The generating

units expected to be commissioned during the next one year are as follows:

Name of the Power Projects Unit No. Capacity (MW)

Schedule Date of Commissioning

GUJARAT (i) Kutch Lignite TPS 4 75 Jan 2008 (ii) Sugen CCPP- Torrent Power Block -1 370 Apr 2008 Block-2 370 Jun 2008 Block-3 370 Aug 2008 (iii) Surat Llignite expansion-GIPCL 1 125 Nov. 2008


Name of the Power Projects Unit No. Capacity (MW)


MADHYA PRADESH (i) Amarkantak TPS

5 210 Jun 2008

CHHATTISGARH (i) Korba TPS (E) Extn. Stage-V 2 250 Comm. on 11.12.2007

(ii) Raigarh TPP Ph-I &II – Jindal (Pvt) 1 250 Comm. on 2.9.2007

2 250 2007-08 3 250 2007-08 4 250 2007-08 (iii) Pathadi TPP (Lanco) 1 300 Sept. 2008

MAHARASHTRA (i) Ghatghar HPS (Hydro) 1 250 2007-08 2 250 2007-08 (ii) Trombay TPP- TPC 1 250 Oct. 2008

CENTRAL SECTOR – NTPC (i) Sipat-II TPP 4 500 Comm. on 27.5.2007 5 500 Mar. 2008 (ii) Bhilai TPP (Joint venture with SAIL) 1 250 Feb. 2008

2 250 May 2008

ITEM No.16: ANY OTHER ITEM WITH PERMISSION OF CHAIR 16.1 Passing of benefit to WR beneficiaries by NTPC due to charging on

inflated capital base during the period 2001-2004 16.1.1 CERC in various tariff orders for the year 2004-2009 on the petition filed by

NTPC for Gandhar GPS, Vindhyachal STPS Stage-I, Vindhyachal STPS Stage-II,

Farakka STPS and Kahalgaon STPS have observed that, “the petitioner had been

charging tariff on inflated capital base till 31.03.2004. In these cases, the past period

calculation to assess impact on tariff have not been re-opened and are to be

mutually settled between the petitioner and the beneficiaries. In case of the dispute

any of the party may approach the Commission for appropriate relief”. As such the

benefit of charging on inflated capital base during the period 2001-2004 has to be

passed on to the beneficiaries.


16.1.2 Member Secretary, WRPC stated that the WRP Committee discussed the

above issue in its 4th meeting and suggested NTPC to reconcile the figures jointly

with all the concerned beneficiaries. It was also agreed that beneficiaries would work

out the amount based on data available with them and similarly NTPC would also

independently work out the amount payable. The process of working out the figures

may be completed within 15 days’ time and the results made available with NTPC.

The joint meeting between NTPC and the beneficiaries may be held within one

month’s time wherein the final payable amount may be jointly agreed to.

16.1.3 In the TCC meeting held on 10th Jan. 08 GUVNL stated that since the details

of asset-wise decapitalisation are not available with them and other beneficiaries of

WR, NTPC may work out the details. NTPC said that they are also unable to do this.

16.1.4 During the WRPC meeting, Chairman, GUVNL opined that since the matter

could not be resolved among beneficiaries and NTPC, beneficiaries might file a

petition in CERC for appropriate relief.

Director (Comml.) stated that they are not contradicting what WR beneficiaries are

saying regarding passing of benefit on account of impact of inflated capital base for

the period 2001-04. However, NTPC in the similar matter have filled an appeal

against CERC order for the period 2004-09 and what so ever ruling will come, NTPC

shall abide by that. As this will take some time, he requested the constituents to wait

for some time.

16.2 Implementation of revised UI charges w.e.f. 7th Jan 2008 as per CERC

order

16.2.1 Member Secretary, WRPC stated that CERC (Terms and Condition of Tariff)

(Fourth Amendment) Regulations, 2007 issued vide notification dated 28th Dec. 2007

have revised Unscheduled Interchange (UI) Charges w.e.f. 00.00 hrs of

7th January, 2008. As per the above Regulation the UI charges in case of generating

stations with coal or lignite firing and stations burning only APM gas, has to be

capped at 406 paise when actual generation exceeds the scheduled generation.

16.2.2 In the above context GUVNL vide letter dated 8th January, 2008 requested

for exclusion of UI charges receivable by coal, lignite based thermal power


generations and stations using APM gas when actual generation exceeds the

scheduled generation for arriving at the adjusted UI through averaging of payable /

receivable, as otherwise the very purpose of restricting UI for such stations @ 406

paise per unit will get defeated.

16.2.3 Member Secretary, WRPC stated that the TCC discussed the above matter

during its meeting held on 10th January 2008. So far as Western Region is

concerned the capping of UI will be applicable to coal based thermal stations of

NTPC i.e. Korba, Vindhyachal and Sipat STPS at present. The TCC recommended

that UI charges receivable by Korba STPS, Vindhyachal STPS and Sipat STPS

should also be frozen and should not be considered in the matrix of adjustment of

the receivable and other minor working details etc. may be discussed in the

Commercial Committee Meeting.

16.2.4 NTPC stated that they do not agree for the freezing and let Commercial

Committee address the issue first. Member Secretary, WRPC stated that the UI bill

for the week January 7-13, with the revised UI rates has to be issued shortly and as

such some guidelines need to be agreed to. The WRP Committee discussed the

matter and it was agreed that for the time being the UI bills may be prepared as per

the recommendation of the TCC i.e. UI charges receivable by Korba STPS,

Vindhyachal STPS and Sipat STPS should be frozen and should not be considered

in the matrix of adjustment of the receivable / payable. However, a meeting of

Commercial Group might be convened at the earliest to look into the working details.

16.3 National HVDC Project 16.3.1 Member Secretary, WRPC stated that as intimated in the 5th WRPC

meeting, in view of the difficulties in the revival of Lower Sileru-Barsoor National

HVDC project, CEA had proposed to relocate the two HVDC terminals of this project

to form a back-to-back link at Kolhapur on the 220 kV Kolhapur-Belgaum line. It

was proposed that the cost of relocation would be borne by BHEL and PGCIL and

O&M of the back-to-back link would be with PGCIL. Constituents of Western and

Southern regions would have to pay O&M charges to the PGCIL for this HVDC

station and the constituent who draws power over this link would have to pay


wheeling charges to Maharashtra, Karnataka and PGCIL. The WRP Committee

discussed the matter and observed as under:

i) O&M charges (excluding any wheeling charges) of HVDC back-to-back

link at Kolhapur may be shared by WR & SR regions on 50:50 basis.

ii) Only WR and SR transmission charges would be payable by the

importing utility and no wheeling charges will be payable to Karnataka

and Maharashtra.

The above decision of WRPC was communicated to CEA. In this connection,

Member (PS), CEA, has communicated that in line with the practice being adopted in

other cases, wheeling charges should be paid by constituents of Western and

Southern regions other than Maharashtra and Karnataka respectively for power

imports on the 220 kV Kolhapur-Belgaum line, in addition to O&M charges as per

CERC norms for HVDC link to PGCIL. He has requested WRPC to reconsider the

issue.

Member Secretary further intimated that subsequent to last WRPC meeting, CSEB

intimated that since the original link was between Chhattisgarh and Andhra Pradesh,

their consent for shifting the HVDC link is essential. In this connection, Chairman,

CSEB/WRPC took a meeting on 16.11.07 with CEA, APTRANSCO, Power Grid and

BHEL, wherein, the following decisions have been taken :

i) APTRANSCO and CSEB agreed and consented for shifting of NHVDC

link from Barsoor-Lower Sileru to Kolhapur-Belgaum as proposed by

CEA.

ii) The expenditure incurred would be shared by M/s BHEL.

iii) No compensation to APTRANSCO or CSEB would be payable for their

contribution, as contributions were towards R&D funding.

Chairman, GUVNL raised the query about the viability of operation of Kolahapur-

Belgum line with the relocation of two HVDC terminals of Lower Sileru – Barsoor

line. General Manager (Comml.), GUVNL stated that as stressed during last WRPC

meeting if, the importing utility is required to pay transmission charges to both

Karnataka & Maharashtra in addition to WR and SR transmission charges, it will not


be financially viable. The operation of the line is viable provided it is treated as inter-

regional link.

16.3.3 The WRP Committee after discussion, reiterated the views expressed in the

last meetings viz (i) O & M charges (excluding wheeling charges) of HVDC back to

back Kolhapur-Belgaum link shall be shared by WR & SR on 50:50 basis and (ii)

only WR & SR transmission charges would be payable by the importing utility and no

wheeling charges will be payable to Karnataka & Maharashtra. The WRP Committee further observed that CEA proposal for shifting of HVDC terminals to Kolhapur could be agreed to provided Kolhapur-Belgam line is treated as inter-regional link. 16.4 Presentation on Pumped Storage Scheme in WR by THDC

Director (Technical), Tehri Hydro Development Corporation Ltd. intimated that THDC

and Nuclear Power Corporation of India Ltd. have signed MoU for joint development

of Hydro Power Projects including Pumped Storage Schemes (PSSs) in India and

abroad. He further stated that the Hon’ble Minister of Power had drawn attention to

the peaking shortages in Maharashtra and had requested the Joint venture to take

up PSSs in the Western Region. He stated that in the Western Region, the potential

of PSSs is about 38,000 MW out of which it is 27,000 MW is in Maharashtra alone.

Presently, Malshej Ghat PSS (600 MW) in Shahpur Taluka & Humbarli PSS (400

MW) at upstream of Koyna have been identified for implementation. The Detailed

Project Reports of the above two schemes which is to be reviewed and updated is in

the process of discussion with the Govt. of Maharashtra. During the presentation

THDC indicated the various alternatives available for supply of power to PSSs, its

cost economics etc. and made a detail presentation to WRP Committee. THDC

further stated that the state of Maharashtra has the first right to supply the off-peak

power and get back the peak power from the above PSSs. However, other

constituents may also express their willingness in this respect.

Chairperson, CEA said that the Western Region should plan at least 1,000 MW of

Pumped Storage Schemes in the Western Region considering the addition of about

50,000 MW thermal capacities by the year 2011-12. In this context, Chairman,


WRPC / CSEB requested THDC to work out the project cost, its implications etc. and

write to each states of WR individually and discuss the scheme with them for further

needful. The copy of the presentation made of THDC is enclosed at Annexure-16.

16.5 Evacuation of power by new IPPS

Principal Secretary (Energy), Govt. of Chhattisgarh said that number of generating

plants belonging to IPPs are coming up in the state of Chhattisgarh and the matter

regarding evauation of power from these IPPs need to be addressed.

In this context, Chairperson, CEA stated that the concerned IPPs have to apply for

open access and whenever any IPP approaches CEA, they are being guided

accordingly. He further stated that CEA can prepare a master plan for evacuation of

power from these IPPs and transmission system could gradually be developed in

phase manner by PGCIL as and when new projects comes. He added that in case of

River Basin Projects, CEA has adopted the above philosophy.

Chairman, WRPC/CSEB stated that CEA is shortly calling a meeting of IPPs and this

matter may be discussed in that meeting.

16.6 Monitoring of on going generation schemes

Chairman, GUVNL stated that last year Secretary (Power) took a meeting on

monitoring of the status of construction of generating stations and issues related to

BHEL. As the problem with BHEL continue, she requested Chairperson, CEA to

intervene in the matter.

In this context Chairperson, CEA informed that all BHEL on going projects are

closely monitored by Prime Minister’s Office. Also, Finance Minister is regularly

taking meetings in this matter. Month wise COD programme drawn up by CEA is

brought to the notice of Finance Minister and the Prime Minister. CEA is also taking

up the meeting with BHEL directly. One of the reasons for delays in BHEL projects is

absence of price variation clause in their sub-contracts. He informed that BHEL have

been told at the level of Finance Minister to take corrective actions.


16.7 Guidelines for requirement of land, water for new projects

Principal Secretary (Energy), Govt. of Chhattisgarh enquired about the guidelines, if

any, framed by CEA regarding the requirement of land, water for construction of new

projects. In this context Chairperson, CEA said that the Authority has recently

finalized the guidelines for land requirement for Thermal Power Stations after

examining some international practices and consultation with some State utilities,

BHEL, NTPC, Consultants etc. CEA report containing guide lines for land

requirement for different capacity of thermal power plants is ready and will be

circulated to all the concerned shortly.

ITEM No.17: DATE AND VENUE OF NEXT WRPC MEETING

It was decided that the next (7th) meeting of WRP Committee shall be held in third

week of March 2008. PGCIL agreed to host the same.

The meeting ended with vote of thanks to the Chair.

* * * * *

Annexure-1(A)

LIST OF PARTICIPANTS OF TCC MEETING HELD ON 10.01.2008 AT PORT BLAIR

A. TECHNICAL COORDINATION COMMITTEE

MEMBERS 1. Shri V.K. Jain, Chairman TCC & Member (T & D), CSEB 2. Shri R.K. Saxena, ED (O & M Gen.), MPPGCL 3. Shri R.P. Sharma, ED (LD), MPPTCL 4. Shri S.N. Chauhan, CE (T&C), CSEB 5. Shri R. B. Brahmbhatt, CE (LD), GETCO 6. Shri M.H. Kshatriya, ACE (R & C), GETCO 7. Shri D.S. Singh, GM (WR-II) 8. Shri T. Chatterjee CE (GM), CEA 9. Shri M.L. Jadhav, CE (Trans.), NPCIL 10. Shri P. Patel, Member Secretary, WRPC SPECIAL INVITEES

1. Shri S.P. Singh Gaharwar, MS, NRPC 2. Shri A. Magudapathi, MS, NERPC 3. Shri Major Singh, Member (Power), NCA 4. Shri S.S. Sharma, Sr. Vice President, PTC

B. OTHERS I. CHHATTISGARH

1. Shri S.P. Chaturvedi, Member (Gen.), CSEB 2. Shri V.K. Verma, Member (Fin.), CSEB 3. Shri Shiv Raj Singh, Advisor, CSEB

II. GUJARAT

1. Shri S.B. Khyalia, GM (Comml.), GUVNL 2. Shri K.P. Jangid, CFM (Comml.) GUVNL

III. MADHYA PRADESH

1. Shri Rajeev Keskar, EE, MPMKVVCL 2. Shri S.K. Bhagwatkar, EE (LD), MP East Discom Jabalpur

IV. GOA

1. Shri Nirmal Braganza , CE, Electricity Dept. Goa V. U.T. OF DADRA NAGAR & HAVELI

1. Shri B.R. Tamboli, EE, DNH

VI. POWERGRID CORPN. OF INDIA LTD.

1. Shri A.K. Datta, ED (WR-II) 2. Shri D.K. Valecha, ED (WR-I) 3. Shri P. Pentayya, AGM (OS), WRLDC 4. Shri C.M. Verghese, AGM (Comml.), WRTS-I 5. Shri S.K. Mishra, DGM (O & M), WRTS 6. Shri U.K. Tyagi, AGM /Comml., POWERGRID 7. Shri C. Kannan, DGM / Finance, POWERGRID

VII. NATIONAL THERMAL POWER CORPN. LTD.

1. Shri A. Chaudhuri, GM (OS), WRHQ 2. Shri M.L. Oswal, GM (Comml.), WRHQ 3. Shri S.N. Goel, GM (Comml.), CC 4. Shri R.D. Jaywant, DGM (Comml.) 5. Shri H. Harchandani, DGM (Comml.)

VIII. TATA POWER COMPANY

1. Shri Ashok Sethi, Sr. GM 2. Shri V.H. Thakurani, CLD

IX. THDC Ltd., TEHERI

1. Shri Ajay Mathur, Addl. GM (Comml.), THDC Ltd. Teheri 2. Shri Shailendra Singh, DGM (C), THDC Ltd. Teheri

X. WESTERN REGIONAL POWER COMMITTEE

1. Shri Manjit Singh, SE (Opn.) 2. Shri S.G. Tenpe, SE (Comml.) 3. Shri R.D. Pandhare, Asst. Secretary 4. Shri M.G. Gupta, EE (Opn.)

Annexure-1(B)

LIST OF PARTICIPANTS OF 6th WRPC MEETING HELD AT PORT BLAIR ON 11.01.2008

A. WESTERN REGIONAL POWER COMMITTEE

MEMBERS

1) Shri Rajib Ranjan, Chairman, WRPC & CSEB 2) Shri S.M. Dhiman, Member (GO & D), CEA 3) Mrs. V.L. Joshi, Pr. Secretary (Energy) / Chairman, GSECL, Gujarat 4) Shri G.K. Sinha, MD, DGVCL 5) Shri D.N.Prasad, CMD, MPPGL 6) Shri Subrat Ratho, MD, MSETCL 7) Shri A.B.Pandey, MD, MSEDCL 8) Shri S.N. Chauhan, CE (T & C), CSEB 9) Shri R.P. Sharma, ED (LD), MPPTCL 10) Shri R.B. Brahmbhatt, CE (LD), GETCL 11) Shri M.R. Khadgi, CE (LD), MSETCL 12) Shri R.S. Sharma, Dir (Comml.), NTPC 13) Shri D.K. Valecha ED (WR-I), POWERGRID 14) Shri A.K.Datta,ED(WR II), POWERGRID 15) Shri G.Nageswara Rao,Director(Opn.),NPCIL 16) Shri Nirmal Braganza, CEE, GOA ELECT. DEPT. 17) Shri P. Patel, Member Secretary, WRPC

SPECIAL INVITEES

1) Shri Rakesh Nath, Chairperson, CEA 2) Shri Vivek Dhand, IAS, Pr. Secretary, Govt. of Chhattisgarh. 3) Shri Major Singh, Member (Power), NCA 4) Shri S.P. Singh Gaharwar, Member Secretary, NRPC 5) Shri A. Magudapathi, Member Secretary, NERPC 6) Shri S.K. Shukla, Director (Tech.), THDC Ltd. Teheri 7) Shri Gyan P. Joshi, Director (Fin.), SSNNL 8) Shri S.S. Sharma, Sr. Vice President, PTC

B. OTHERS

II. CHHATTISGARH

1) Shri V.K. Jain, Member (T & D), CSEB 2) Shri S.P. Chaturvedi, Member (Gen.), CSEB 3) Shri V.K. Verma, Member (Fin.), CSEB 4) Shri Shiv Raj Singh, Advisor, CSEB

III. MADHYA PRADESH

1) Shri P.K. Vaishya, MD, MPTRADECO 2) Shri R.K. Saxena, ED (O & M Gen.), MPPGCL 3) Shri Rajeev Keskar, EE (LD), MPMKVVCL 4) Shri S.K. Bhagwatkar, EE (LD), MPPKVVCL

IV. GUJARAT

1) Shri S.B. Khyalia, GM (Comml.), GUVNL 2) Shri M.H. Kshatriya, Add. CE( R & C), GETCO 3) Shri K.P. Jangid, CFM (Comml.), GUVNL

IV. MAHARASHTRA

1) Shri G. S. Limaye, Executive Director (O), MSETCL V. UT of DADARA NAGAR HAVELI

1) Shri B.R. Tamboli, EE

VI. CENTRAL ELECTRICITY AUTHORITY

1) Shri T. Chatterjee, CE (GM) VII. NUCLEAR POWER CORPN. OF INDIA LTD

1) Shri J.K. Ghai, Dir. (Fin.), NPCIL 2) Shri M.L. Jadhav, CE (Tran.), NPCIL

VIII. POWERGRID CORPN. OF INDIA LTD.

2) Shri Umesh Chandra, ED (Comml.) 3) Shri Anjan Roy, GM, WRLDC 4) Shri D.S. Singh, GM (OS), POWERGRID 5) Shri P. Pentayya, AGM (OS), WRLDC 6) Shri C.M.Verghse,AGM (Comml), WRTS 7) Shri U.K. Tyagi, AGM (Comml.) 8) Shri S.K. Mishra, DGM, PGCIL, WRTS 9) Shri C. Kannan, DGM (Comml.)

IX. NATIONAL THERMAL POWER CORPN. LTD.

2) Shri Anuttam Chaudhuri, GM (OS), WRHQ 3) Shri M.L. Oswal, GM (Comml.)WR-HQ. 4) Shri S.N. Goel, GM (Comml.), Corp. Centre

X. TATA POWER COMPANY

1) Shri Ashok Sethi Sr. GM (Comml.) 2) Shri V.H. Thakurani, DGM (LD)

XI. JHARKHAND

1) Shri D.K. Chaurasia, ESE / SLDC, JSEB 2) Shri C.D. Kumar, Eng. In Chief, JSETB

XII. OTHERS

2) Shri Ajay Mathur, Addl. GM (Comml.), THDC Ltd. Teheri 3) Shri Shailendra Singh, DGM (C), THDC Ltd. Teheri

XIII. WESTERN REGIONAL POWER COMMITTEE

1) Shri Manjit Singh, Superintending Engineer (Opn.) 2) Shri S.G. Tenpe, Superintending Engineer (Comml.) 3) Shri R.D. Pandhare, Asst. Secretary 4) Shri M.G. Gupta, EE (Opn.)

Annexure-8.1(a)

FREQUENCY PARTICULARS OF WESTERN REGION FOR THE PERIOD OCTOBER 2007 TO DECEMBER 2007

Sr.No. PARTICULARS Oct-07 Nov-07 Dec-07

1 MAXIMUM FREQUENCY(Hz) 1.1 Integrated over an hour 50.08 50.11 50.08 1.2 Instantaneous 50.86 50.34 50.48

2 MINIMUM FREQUENCY(Hz)

2.1 Integrated over an hour 48.97 48.90 48.81 2.2 Instantaneous 48.76 48.70 48.64

3 AVERAGE FREQUENCY(Hz) 49.37 49.29 49.28

4 NUMBER OF TIMES FREQUENCY TOUCHED

4.1 48.6 Hz 0 0 0 4.2 48.8 Hz 242 278 424 4.3 51.0 Hz 0 0 0

5 PERCENTAGE TIME WHEN FREQUENCY WAS

5.1 Above 50.2 Hz 0.24 0.15 0.13 5.2 Above 50.5 Hz 0.01 0.00 0.00 5.3 Between 50.2 Hz & 49.5 Hz 28.46 21.10 22.31 5.4 Between 50.2 Hz & 49.0 Hz 91.76 83.31 81.51 5.5 Below 49.0 Hz 8.00 16.54 18.36 5.6 Below 49.8 Hz 92.35 94.64 94.3 5.7 Between 49.0 Hz & 50.5 Hz 91.99 83.46 81.64 5.8 Between 50.5 Hz & 48.5 Hz 99.99 100.00 100.00

Annexure-8.1(b) (1/2)

POWER SUPPLY POSITION IN WR FOR PERIOD FROM OCTOBER 2007 TO DECEMBER 2007 (IN MW)

Details Chhatisgarh Gujarat Madhya Pradesh Maharashtra

Oct Nov Dec Oct Nov Dec Oct Nov Dec Oct Nov Dec

Availability (MW) 1954 1911 2013 8714 8309 8591 5687 6651 6380 14059 14099 13477 Unrestricted demand (MW) 2263 2242 2183 11825 11466 11668 6006 6983 7425 18922 18013 18294

Deficit(-)/Surplus(+) (i) MW -309 -331 -170 -3111 -3157 -3077 -319 -332 -1045 -4863 -3914 -4817

(ii) % -13.65 -14.76 -7.79 -26.31 -27.53 -26.37 -5.31 -4.75 -14.07 -25.70 -21.73 -26.33

Details Goa Daman & Diu Dadra & Nagar Haveli Western Region


Availability (MW) 407 406 387 215 192 198 406 399 408 29345 30835 29942 Unrestricted demand (MW) 446 451 438 240 217 223 432 416 440 39449 38561 39439

Deficit(-)/Surplus(+) (i) MW -39 -45 -51 -25 -25 -25 -26 -17 -32 -10104 -7726 -9497

(ii) % -8.74 -9.98 -11.64 -10.42 -11.52 -11.21 -6.02 -4.09 -7.27 -25.61 -20.04 -24.08

Annexure-8.1(b) (2/2)

ENERGY POSITION IN WR FOR PERIOD FROM OCTOBER 2007 TO DECEMBER 2007 (IN MUs)

Details Chhatisgarh Gujarat Madhya Pradesh Maharashtra


Availability (MUs) 1088 1068 1115 5707 5275 5480 3193 3797 3961 8705 8501 8693 Unrestricted requirement (MUs) 1148 1114 1170 6723 6356 6706 3592 4447 4812 10646 10118 10949

Deficit(-)/Surplus(+) (i) MUs -60 -46 -55 -1016 -1081 -1225 -399 -650 -852 -1942 -1617 -2257

(ii) % -5.24 -4.11 -4.73 -15.11 -17.0 -18.27 -11.12 -14.62 -17.70 -18.24 -15.98 -20.61

Details Goa Daman & Diu Dadra & Nagar Haveli Western Region


Availability (MUs) 234 219 228 137 126 137 289 272 293 19352 19259 19907 Unrestricted requirement (MUs) 235 221 232 156 144 156 289 273 294 22789 22673 24319

Deficit(-)/Surplus(+) (i) MUs -1.01 -1.93 -3.30 -18.60 -18.00 -18.60 -0.23 -0.36 -1.49 -3437 -3414 -4412

(ii) % -0.43 -0.87 -1.43 -11.92 -12.53 -11.94 -0.08 -0.13 -0.51 -15.08 -15.06 -18.14

Annexure-8.2

Voltages at the important 400 kV substations during the period Oct 07 to Dec 07

Month Indore Itarsi Karad Dhule Asoj

Max Min Max Min Max Min Max Min Max Min

Oct-07 425 356 429 368 425 386 440 380 424 385

Nov-07 426 378 426 389 424 392 435 390 424 395

Dec-07 426 385 428 395 423 388 438 400 424 397

Month Kasor Bhilai Jetpur Bina Gwalior

Max Min Max Min Max Min Max Min Max Min

Oct-07 422 396 415 386 414 354 436 390 428

369

Nov-07 422 400 422 399 417 358 429 372 428 382

Dec-07 422 400 422 399 416 356 435 394 431

383

Annexure-10 (1/2)

ANTICIPATED POWER SCENARIO IN WR FOR PERIOD FROM JANUARY 2008 TO MARCH 2008 (IN MW)

Chhatisgarh Gujarat Madhya Pradesh Maharashtra Details

Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar

Availability (MW) 1634 1617 1809 7118 7029 7308 5764 5347 4998 13731 14262 13647 Unrestricted demand (MW) 2206 2255 2323 10034 10074 10196 7172 7160 6402 18850 19006 19398 Deficit(-)/Surplus(+)

(i) MW -572 -638 -514 -2916 -3045 -2888 -1408 -1813 -1404 -5119 -4744 -5751 (ii) % -25.93 -28.29 -22.13 -29.06 -30.23 -28.32 -19.63 -25.32 -21.93 -27.16 -24.96 -29.65

Goa DD&DNH Western Region Details

Jan Feb Mar Jan Feb Mar Jan Feb Mar

Availability (MW) 362 357 357 509 497 497 29118 29109 28616 Unrestricted demand (MW) 421 463 469 653 654 659 37714 37979 37821 Deficit(-)/Surplus(+)

(i) MW -59 -106 -112 -144 -157 -162 -8596 -8870 -9205 (ii) % -14.01 -22.89 -23.88 -22.05 -24.01 -24.58 -22.79 -23.35 -24.34

Annexure-10 (2/2)

ANTICIPATED ENERGY POSITION IN WR FOR PERIOD FROM JANUARY 2008 TO MARCH 2008 (IN MUs)

Chhatisgarh Gujarat Madhya Pradesh Maharashtra Details

Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar

Availability (MUs) 1240 1151 1388 5298 4964 5345 3603 3267 3442 8314 8285 8158 Unrestricted Requirement (MUs) 1328 1297 1390 6114 5760 6355 4498 4018 3889 11109 10771 12142 Deficit(-)/Surplus(+)

(i) MUs -88 -146 -2 -816 -796 -1010 -895 -751 -447 -2795 -2486 -3984 (ii) % -6.63 -11.26 -.14 -13.35 -13.82 -15.89 -19.90 -18.69 -11.49 -25.16 -23.08 -32.81

Goa DD&DNH Western Region Details

Jan Feb Mar Jan Feb Mar Jan Feb Mar

Availability (MUs) 239 227 237 372 344 362 19066 18238 18932 Unrestricted Requirement (MUs) 260 230 274 455 418 470 23764 22494 24520 Deficit(-)/Surplus(+)

(i) MUs -21 -3 -37 -83 -74 -108 -4698 -4256 -5588 (ii) % -8.08 -1.30 -13.50 -18.24 -17.70 -22.98 -19.77 -18.92 -22.79

PROGRESS OF TRANSMISSION LINES UNDER CONSTRUCTION IN WESTERN REGIONSr.No.

Name of transmission line Length in Ckt. Km

Anticipated Completion

REMARKS

Target

A gaujarat GUJARAT (as on 30.11.2007)

I. 400 kovaI laa[-na 400 kV Lines 1 400 kV Dehgam (PGCIL)-Ran'Pura(Vadavi) D/C 130.00 Jul-07 Line commissioned on 27/06/072 LILO of 400 kV Asoj-Amreli line at 400 kV Chorania 21.10 Dec-07

II. 220 kovaI laa[-na 220 kV Lines3 220 kV Bardoli-Chikhali D/C 96.00 Jan-08 Erection of gentry is pending4 200 kV Vapi (PGCIL) - Bhilad D/C 46.00 Dec-07 Erection of gentry at Bhilad is pending5 200 kV LILO at Mota (Bardoli) S/S from 2nd Ckt. of Ukai (T)-Vav 9.60 Dec-07

6 200 kV LILO at Kosamba S/S from Vav-Zagadia line 20.00 Mar-09 Line survey work is under progress7 220 KV D/C Adasar - Bala 20.00 Mar-088 220 KV D/C Chorania - Bala 59.12 Mar-08 Profile approved9 220 KV D/C Bala-Rajpur 10.58 Mar-08

10 220 KV D/C Rajpur-Dudhrej 19.16 Mar-0811 200 kV LILO at Lakhani S/S from both Ckt. of Kansari-Tharad 8.00 Mar-08 Profile approved12 200 kV Rajkot-Morbi D/C & LILO at 400KV Hadala S/S 146.00 Jul-07 Ckt. 1 charged on 31/05/07 upto Morbi

S/S, Ckt. 2 Charged on 26/05/07 & Haldia- Rajkot D/C line charged on 16.08.07

13 200 kV LILO at Botad S/S from Kasor-Vartej line 90.00 Tender for Preparation of Profile wok opened

14 200 kV LILO at Chitrod from Deodar-Anjar 2.10 Work order to be placed.15 200 kV LILO of Shivlakha-Nanikhakhar at Varsana both Ckts. 7.23 Dec-0716 200 kV LILO at Kukma S/S from one ckt. of Anjar-Panandhro 5.19 Dec-0717 200 kV LILO at Kukma S/s from one ckt. of Shivlaktha- Nanikhakhar 34.00 - Route & profile approved.

B maGya p`doSa MADHYA PRADESH (as on 30.10.2007)

I. 400 kovaI laa[-na 400 kV Lines 1 Extention of 400 kV Birsingpur-Katni-Damoh for PGCIL Damoh 26.04 2007-2008

2 Diversion of 400 kV Birsingpur-Katni-Damoh at Katni 1.94 2007-2008

3 Interconnector arrangement at 400 kV Birsingpur-Katni-Damoh at Birsingpur

0.66 2007-2008

4 LILO of 220 kV Birsinghpur-Rewa one Ckt. At Sidhi 117.50 2007-20085 LILO of both Ckt of 220 kV Bhopal-Itarsi for 400 kV PGCIL Itarsi S/S 2.05 2007-2008

6 200 kV Birsingpur-Jabalpur Ckt-I 134.11 2006-2007 Line charged on 20/05/077 200 kV Birsingpur-Jabalpur Ckt-II 138.15 2006-2007 Line charged on 20/05/078 LILO of 1st Ckt. DCDS 200 kV Gwalior- Malanpur at 400KV Gwalior

PGCIL S/S16.90 2007-2008

8 LILO of both Ckt of 220 kV Barwaha-Nepanagar, 2 Nos DCDS for Omkareshwar HEP

90.96 2007-2008

9 LILO of first Ckt of 220 kV Indore-Dewas for 200 kV Indore S/S 0.39 2007-2008 Line charged on 20/07/0710 LILO of 200 kV Birsingpur TPS- Birsingpur hydel II Ckt. 11.62 2007-2008 Line charged on 16/05/0711 LILO of both Ckt of 200 kV Birsinghpur TPS Nowrozabad traction

feeder23.06 2007-2008

Line charged on 30/06/0712 200 kV Satna-Chhatarpur 140.00 2007-200813 200 kV Amarkantak-Jabalpur DCDS 300.00 2007-2008 Forest proposal Subitted on 08.08.0714 220 kV Chhindwara-400 kV PGCIL Seoni D/C 140.00 2007-200815 LILO of both Ckts.of 200 kV Pithampura-Rajgarh for 400kV PGCIL

Rajgarh23.53 2007-2008

16 LILO of first Ckt.of 200 kV Pithampur-Rajgarh for 400kV PGCIL Rajgarh

22.55 2007-2008

17 LILO of one Ckt of 200 kV Jabalpur-Itarsi at Piparia S/S 7.20 2007-200818 LILO of 200 kV Damoh-Tikamgarh for 400 kV Damoh 1.66 2007-200819 LILO of one Ckt of 200 kV Itarsi-Bhopal for 220kV Mandideep 11.23 2007-200820 200 kV Shivpuri-Sabalgarh DCDS 210.00 2007-200821 LILO of one Ckt 200 kV Damoh-Bina for 400 kV Damoh 1.05 2007-200822 Second Ckt. Of 200 kV Pithampura-Rajgarh 68.65 2007-200823 LILO of second Ckt of 220 kV Jabalpur-Itarsi for 220 kV Narsingpur 6.00 2007-2008

24 220 kV Bhopal (400 kV) -Ashta for Ashta S/S 194.00 2007-200825 LILO of 200 kV Birsingpur-Satna one Ckt. at ATPS Chachai 87.41 2007-200826 LILO of second circuit of 200 kV Nagda-Ratlam for 400kV Nagda 43.32 2007-200827 SujalpurPGCIL (400kV)-220kV Rajgarh Biaora line 134.40 2008-200928 Interconnector arrangement at 400kV Sujalpur-220kV Sujalpur 10.00 2008-2009

Annexure- 14

Sr.No.

Name of transmission line Length in Km


REMARKS

Target

C C%tIsa gaZ CHHATTISGARH (as on 30.11.2007)I. 400 kovaI laa[-na 400 kV Lines

1 LILO of 400 kV Korba (West)-Bhilai to Raipur DCDS 50.00 2007-20082 400 kV Korba(West)- Khedamara DCDS 220.00 2007-2008

II. 220 kovaI laa[-na 220 kV Lines1 200 kV for Pendra S/s (Korba-Amarkantak) Kotmikala DCDS 23.20 2007-2008 Testing & commissioning work U/P

2 200 kV Korba -Bishrampur DCSS 153.00 2007-2008 Case is submitted to AIG(FC) Min. of Env& Forest, New Delhi by Secy(F)

3 200 kV Suhela (Bhatapara)-Bemetara DCDS 44.58 2007-2008 Ckt-I & II charged on 01/09/07 & 03/09/07 respectively

4 200 kV Suhela (Bhatapara)-Mahasamund DCDS 62.01 2007-2008 Ckt-I & II charged on 01/09/07 & 03/09/07 respectively

5 200 kV LILO of Bhilai-Barsoor second Ckt. to Gurur S/S DCDS 7.09 2007-2008 Line charged on 25/07/076 200 kV Korba(E) -Suhela (Bhatapara) DCDS 142.04 2007-2008 Line cherged through diverted route.Ckt-I

& II charged on 18/11/07 & 21/11/07 respectively

7 220 kV line from PGCIL Kumhari to 220 kV Doma S/S DCDS 40.00 2007-20088 LILO of 200 kV Korba-Bhatapara Ckt. -II at Champa S/S DCDS 0.84 2007-2008 Work completed. Ready for charging.9 220kV DCDS Suhela-PGCIL DCDS 15.00 2007-2008 Work under Progress10 220 kV Bhatapara-Kumhari LILO at PGCIL DCDS 6.00 2007-2008 Work under Progress11 I/C 220 kV Raigarh-PGCIL Raigarh DCDS 10.39 2007-2008 ROW problem in entire route

12 220 kV Raigarh-Ms Jindal Power Ltd. DCDS 52.002007-2008 Work under Progress. 0.058km profile

submitted for clarification 13 220kV Double Ckt of existing Bhatapara-Suhela DCDS 17.45 2007-2008 2nd Ckt. completed. One Ckt. charged

on 23.08.07 from Loc. 1 to 5714 LILO of 200 kV Siltara-Bhilai to Doma DCDS at Mopka 30.00 2007-2008 New line for Doma s/s15 LILO of 200 kV Korba-Siltara at Mopka 12.14 2007-2008 Work under Progress

New works planned (70% work to be completed during 2007-08)16 220 kV DCDS Chhuri-Mopka(Bilaspur) 90.00 2007-2008 Approved by Board.17 220 kV DCSS line between 400 kV kV s/s Bhilai & Ranjangaon 55.00 2007-2008 P.B. opened.18 220 kV DCSS Khedamara-220 kV Bematara S/S 60.00 2007-2008 T.C. bid opened.19 220 kV I/C New Power House at Korba(E) to prposed 220 kV Chhuri 30.00 2007-200820 Diversion of 200 kV Korba(E)-Bhilai line and 200 kV I/C in between

Korba(E) PH-II DCSS 30.00 2007-2008

21 Diversion of 200 kV line from and 200 kV I/C in between Korba(W) and proposed 200 kV Chhuri S/S using section of Korba-Amarkantak - I & II DCSS

14.00 2007-2008

22 Diversion of 200 kV Korba-Amarkantak Ckt.I&II to proposed 200/132KV Chhuri S/S DCSS

4.00 2007-2008

D maharaYT/ (MAHARASHTRA) (as on 30.11.2007)Sr.No.



REMARKS

Target

I. 400 kovaI laa[-na 400 kV Lines 1 400 kV Dabhol- Nagothane Ckt II 135.56 Jan-082 LILO on 400 kV Bhusawal-Koradi Ckt.-I for Akola S/S 77.00 Jun-063 400 kV Lonikand-Padghe line - Diversion at MIDC Chakan 4.06 - Commissioned on 26.04.07

II. 220 kovaI laa[-na 220 kV Lines1 200 kV Kanhan-Umred S/C 50.11 - Line commissioned on 25/05/072 LILO on 200 kV Khaparkheda- Bhandaraat Kanhan D/C line 20.00 Mar-073 LILO on 200 kV Dhule-Dondaicha D/c line for Amalner S/S 64.00 Oct-074 LILO on 200 kV Tarapur-Borivali for 200 kV Boisar-II S/S 8.00 2007-085 200 kV line from PGCIL to 200 kV kV Wada S/S 57.00 2007-086 200 kV Theur-Jejuri (Holkarwadi) D/C line 38.00 - Line commissioned on 25/05/077 Interconnection between 200 kV Kolhapur II-Kolhapur III S/S 18.40 Mar-078 LILO on 200 kV Apta-Chinchwad fot URSE S/S 22.00 Mar-07

Sr.No.



REMARKS

Target

E pavargàID POWERGRID (as on 31.11.2007)

I.765 kovaI & 400 kovaI laa[-na 765 kV & 400 kV Lines 1 SIPAT-I Trans. System

1.1 765 KV Sipat-Seoni line I 351.0 Oct-07 Line commissioned in Oct' 071.2 765 KV Sipat-Seoni line 2 354.0 Dec-07 Completion delayed due to delay in award

of tower package (A4) on a/c of change of funding & consequently award.

1.3 400 KV D/C Seoni - Khandwa (Quad) 703.0 Dec-071.4 400 KV D/C Nagda - Dehgam 664.0 Dec-07 Completion delayed due to delay in award

on a/c of CERC issue.1.5 LILO of 400 KV S/C Bhilai-Satpura at Seoni 4.0 Oct-07 Line commissioned in Oct' 071.6 LILO of both Ckt. of 400 KV D/C Sardar Sarovar - Nagda at Rajgarh 16.0 Dec-07 Completion of line re-scheduled matching

with completion of Rajgarh S/S anticipated by Dec'07.

2 400 kV S/C Vindhyachal - Korba Tr. Line2.1 400 KV S/C Vindhyachal - Pratabpur 140.0 May-07 Line commissioned in May-072.2 400 KV S/C Pratabpur - Korba 151.0 May-07 Line commissioned in May-073 Vindhyachal III Trans. System

3.1 400 KV D/C Satna - Bina 545.0 Aug-07 Ckt.-II commissioned in end of June 07. Ckt.-I commissioned on 28/08/07

3.2 LILO of 400 KV D/C Rourkela-Raipur at Raigarh 37.0 Dec-07 Completion matching with Raigarh S/S4 SIPAT-II Trans. System

4.1400 KV D/C Khandwa - Rajgarh 440.0 Dec-07 Matching with Raigarh S/s schedule

anticipated by Dec'07.

4.2LILO of 400 KV S/C Korba - Raipur at Bhatpara (PG) 5.0 Nov-07 Commissining expected by end Nov' 07

5 400 KV D/C Bina - Nagda Tran. Line 662.0 Oct-07 Line commissioned on 31.10.076 Western Region Strengthening Scheme-I

6.1 400 KV D/C Sipat - Raipur 298.0 Feb-08 2 nos. location held up due to litigation7 Sipat-II Supplimemtary Trans. System

7.1 765 S/C Seoni-wardha (to be operated at 400kV) 269.0 Jun-087.2 400 kV D/C Wardha-Akola 368.0 Jun-087.3 400 kV D/C Akola-Aurangabad 530.0 Jun-088 Western Region Strengthening Scheme-III

8.1 220 kV Vapi (PG)-Magarwada (DD) D/C line & 7 Kms. MultI-Ckt portion 31 Aug-08

8.2 220 kV Vapi (PG)-Kharadpada(DNH) D/C line 36 Aug-08 Stringing commenced from Nov' 079 Western Region Stregthening Scheme-II

9.1 SET-A: For absorbing import in eastern&central part of WR9.1.1 765 KV 2nd S/C Seoni-wardha (initially to be operated at 400kV) 268 - Tendering under Process9.1.2 400 kV D/C Wardha-Parli(Quad.) 726 - Tendering under Process9.1.3 400 kV D/C Raipur-Wardha 726 -9.1.4 400 kV D/C Bhadravati-Parli 760 -9.1.5 400 kV D/C Parli(MSEB)-Parli 14 -9.2 SET-B: For Regional strengthening in southern Maharashtra (to be

implemented through IPTC route)-

9.2.1 400 kV D/C Parli(PG)-Pune 616 -9.2.2 400 kV D/C Pune(PG)-Aurangabad(MSEB) 450 -9.2.3 400 kV D/C Parli(PG)-Pandharpur/Solapur 392 -9.2.4 400 kV D/C Pandharpur/Solapur(PG)-Kolhapur(MSEB) 378 -9.2.5 LILO of Lonikhand(MSEB)-Kalwa(MSEB)400 kV D/C at Pune(PG) 48 -9.2.6 LILO of Solapur(MSEB)-Karad(MSEB)400 kV D/C at

Pandharpur/Solapur(PG) 52-

9.3 SET-C: For Regional strengthening in Gujarat -9.3.1 400 kV D/C Rajgarh(PG)-Karamsad(GEB) 480 -9.3.2 400 kV D/C Limbdi(Chorania)(GEB)-Ramchandrapura(GEB) 190 -9.3.3 400 kV D/C Ramchandrapura(GEB)-Zerda(GEB) 310 -9.4 SET-D: For Regional strengthening in Northern Madhaya Pradesh

9.4.1 Bina(PG)-Gwalior(PG) 765 kV 2nd Ckt.to be operated at 400kV 235 - Tower erection commenced from Nov' 07

9.4.2 400 kV D/C Korba(NTPC)-Birsighpur(MPGENCO) 454 - Award placed in May-07. Survew& Engg Works in Progress

9.4.3 400 kV D/C Birsighpur(MPGENCO)-Damoh(PG) 508 - Award placed in May-07. Survew& Engg Works in Progress

9.4.4 400 kV D/C Damoh(PG)-Bhopal(MPSEB) 468 - Award placed in May-07. Survew& Engg Works in Progress

10 Trans. Sy. Associated with Gandhar-II (GBPP) -10.1 400 kV D/C Gandhar-Kawas 190 -10.2 400 kV D/C Gandhar-Rajkot 600 -10.3 LILO of 400 kV D/C Bina-Nagda at Shujalpur 60 -

11 Inter-regional lines11.1 WR-ER/NER

11.1.1 400 kV D/C Ranchi - Rourkela340 Award under hold due to non-resolution

of funding issue

11.1.2 400 kV D/C Rourkela - Raigarh440 Award placed in July 07. Engg. & survey

under Progess

11.1.3 400 kV D/C Raigarh - Raipur450 Award placed in July 07. Engg. & survey

under Progess 11.1.4 400 kV D/C Ranchi - Sipat Lines 816 Mar-08 Work held up due to forest clearance11.1.5 765 kV S/C Seoni - Bina line to be charged at 400kV 293 Sep-0911.2 WR-NR

11.2.1 765 kV Agra - Gwalior 2nd S/C line (initially to be operated at 400kV 130 Jan-09

11.3 WR-SR11.3.1 Nil

Annexure-15

Sr. No. Name of the Power Projects Unit No. Capacity (MW)


A GUJARATProjects under constructions:

1 Dhuvaran CCGT St.II ST 40 Commd. on 13/08/072 Kutch Lignite TPS 4 75 Jan. 20083 Sugen CCPP- Torrent Power Block -1 370 Apr. 2008

Block-2 370 Jun. 2008Block-3 370 Aug. 2008

4 Surat Lignite expansion- GIPCL 1 125 Nov. 20082 125 Mar. 2009

New Projects for which LOA yet to be placed:5 Utran GPP 360 Jul. 20096 Sikka TPP Extn. 3 250 Feb. 2010

4 250 Jun. 20107 Ukkai TPS Extn. 1 490 Jun. 20118 Gujarat Lignite-NLC & GPCL joint venture Stage-I 1500 2011-12

Stage-II 500 2012-139 Pipavav CCPP- GPCL & GSPC joint venture 1 350 Mar. 2010

2 350 Jun. 201010 Hazira CCPP Expansion GSEG 350 Feb. 201011 Dhuvaran CCPP GSECL Stage-III 360 Mar. 201012 Pipavav TPP- Torrent Power 1000 2011-1213 Bhavnagar Lignite TPP-joint venture 500 Apr. 2011B MADHYA PRADESH

Projects under constructions:1 Birsinghpur TPP Extn. 1 500 Commissioned in Jun. 20072 Amarkantak TPS 5 210 Jun. 20083 Omkareshwar HEP- NHDC 1 65 Commd. on 21/07/07

2 65 Commd. on 09/08/07 3 65 Commd. on 29/08/074 65 Commd. on 12/09/075 65 Commd. on 29/09/076 65 Commd. on 18/10/077 65 Commd. on 27/10/078 65 Commd. on 05/11/07

5 Madikheda HEP 3 20 Commnd. On 18/08/074 Maheshwar HEP - 400 2010-11

Projects for which LOA yet to be placed 5 Malwa TPP 1 500 Dec. 2010

2 500 Apr. 20116 Satpura TPS Extn. 10 250 Mar. 2011

11 250 Sept.20117 Sahpura TPP 1 500 Dec.2012

2 500 Mar. 20133 500 Jun. 2013

NEW GENERATION SCHEMES TO BE ADDED IN 2007-08(end of Xth Year Plan) & DURING XIth PLAN IN WESTERN REGION

Sr. No. Name of the Power Projects Unit No. Capacity (MW)


C CHHATTISGARHProjects under constructions:

1 Korba TPS (E) Extn. Stage-V 2 250 Commd. On 11.12.20072 Raigarh TPP Ph-I - Jindal (Pvt) 1 250 Commnd.on 02.09.2007

Raigarh TPP Ph-I & II - Jindal (Pvt) 2 250 2007-083 250 2007-084 250 2007-08

3 Pathadi TPP (Lanco) 1 300 Sept. 20082 300 Jul. 2009

Projects for which LOA yet to be placed 4 Bhaiyathan TPP Phase-I 1 500 Apr. 2011

2 500 Oct. 20115 Marwa TPP 1 500 Nov. 2010

2 500 Feb. 20116 Korba South TPP 1 500 Apr. 2011

2 500 Oct. 20117 Premnagar TPP Surguja joint venutre of CSEB & IFFC 1 Oct. 2010

2 Mar. 2011D MAHARASHTRA

Projects under implementation:1 New Parli TPS Extn. 2 250 Feb. 20092 Paras TPS Extn. 2 250 Apr. 20093 Khaperkheda TPP 1 500 Mar. 20104 Bhusawal Extn. TPP 1 500 Jun. 2010

2 500 Oct. 20105 Trombay TPP- TPC 1 250 Oct. 20086 Ghatghar HPS (Hydro) 1&2 2 x 125 2007-08

Projects for which LOA yet to be placed:7 Koradi TPS Extn. 1 800 Oct. 20128 Chandrapur TPS Extn. 1 800 Apr. 20129 Dhopawe TPP 1 800 Nov. 2011

2 800 May 201210 Uran CCPP Block-1 700 Feb. 2010

Block-2 340 May. 2010Projects proposed under Replacement Programme:

11 Koradi TPS Extn. (Replacemet of 4 x 120) 1 800 Apr 201212 Parli TPS (Replacement of 2x30) 1 250 May. 201013 Paras TPS (Replacement of 1x62.5) 1 250 May. 201014 Bhusawal TPS (Replacement of 1x62.5) 1 250 May. 2010E CENTRAL SECTOR - NTPC

Projects under implementation:1 Sipat-II TPP 4 500 Commnd.on 27.05.2007

5 500 Mar. 20082 Sipat-I TPP 1 600 2008-09

2 600 2008-093 600 Mar. 2009

3 Bhilai TPP (Joint venture with SAIL) 1 250 Feb. 20082 250 May-08

4 Korba STPS-III 7 500 Feb. 20105 Mauda TPP 1 500 2011

2 500 20126 Ratnagiri PGCL (Dabhol) CCPP-III joint venture GTs+STs 740 Declared commercial on 21.11.2007

11

NPCIL THDC

22

NPCIL THDC

33

NPCIL THDC

44

NPCIL THDC

• THDC is a CPSU in the field of Hydro Power Projects development in India & abroad.

• 260.5 m high Tehri Dam & Hydro Power Project (1000 MW) Commissioned.

• Koteshwar HEP (400 MW), Tehri Pumped Storage Plant (1000 MW) and Vishnugad-Pipalkoti HEP (444 MW) under construction.

• Kishau Dam & HEP(600 MW) and six other new HEPs (695 MW) under various stages of Survey & investigation.

Tehri Hydro Development Corporation Ltd. (THDC)

55

NPCIL Glimpses of

Tehri Dam Project&

1000 MW Hydro Power Plant

THDC

66

NPCIL THDC

Tehri Dam & HPPTotal Installed Capacity 1000 MWAnnual Energy 3568 MUsIrrigation (additional) 2.7 Lac Ha.Stabilization of existing irrigation 6.04 Lac Ha.Drinking Water for Delhi 300 CusecsDrinking Water for UP 200 CusecsAnnual Increase in generation of d/s 200 MUsProjects of State Govt. of UttarakhandIntegrated development of Garhwal Region of Uttarakhand

77

Water Spread : 42 Sq. Km.Water Spread : 42 Sq. Km.Gross Storage : 3540 Million CumGross Storage : 3540 Million CumLive Storage : 2615 Million CumLive Storage : 2615 Million CumMax. Flood Level : El. 835 mMax. Flood Level : El. 835 mFull Reservoir Level : El. 830 mFull Reservoir Level : El. 830 mMDDL : El. 740 mMDDL : El. 740 m

THDC Ltd.THDC Ltd.88

• Type : Rock & earth fill • Height of dam : 260.5 m• Base width : 1128 m• Width at top : 25.5 m• Length at the top : 592 m

THDC Ltd.THDC Ltd.

99

Type : Chute Spilllway & Shaft Spillways

Total Discharge : 15440 Cumecs

Total No. of Shaft : 04 with total depth of 205 m Spillways each

Concrete Placed : 16 Lac cum (Approx.)

1010

Cavern Size :Cavern Size : 197mX24mX63m197mX24mX63mType of Turbines :Type of Turbines : FrancisFrancisRated Head :Rated Head : 188 M188 MSpeed : Speed : 214.3 RPM214.3 RPMInstalled Capacity :Installed Capacity : 4 X 250 MW4 X 250 MWAnnual Energy :Annual Energy : 3568 MUs3568 MUsTransmission System :Transmission System : 400 KV400 KV

1111 1212

L-SECTION OF UPPER AND LOWER RESERVOIR OF TEHRI PSP

FRL. 830.0 M

MDDL. 740.0 M

FRL. 612.5 M MIN.LEL. 606 M

TEHRI DAM

KOTESHWAR DAM

~ 22 KM

UPPER RESERVOIR

LOWER RESERVOIR

1313 1414

NPCIL THDC

1515

NPCIL

• NPCIL is a Public Sector Undertaking under the Department of Atomic Energy, Govt. of India.

• NPCIL builds and operates Nuclear Power Plants in India and has excellent project management skills.

• NPCIL have considerable experience in completing construction of a project well within the stipulated time.

• NPCIL is diversifying into the field of Hydro-electric Power Generation, in pursuance of the Company’s objective to diversify into other forms of power generation

Nuclear Power Corporation of India Ltd. (NPCIL)THDC

1616

NPCIL

• THDC and NPCIL have signed an MoU for joint development of Hydro Power Projects (HPPs) including Pumped Storage Schemes (PSPs) in India and abroad.

• The MoU was signed on 27.02.2007 in the presence of Hon’ble Union Minister of Power, Shri Sushil Kumar Shinde and Secretary (Power), Shri Anil Razdan.

• The Hon’ble Minister of Power had drawn attention to the peak shortages in the Maharashtra region and had urged the JV to take up PSSs in the region.

MOU between THDC and NPCILTHDC

1717

• The MoU was signed in the presence of Hon’ble Union Minister of Power, Shri Sushil Kumar Shinde ,Secretary (Power), Shri Anil Razdan and Chairman,CEA on 27.02.07.

1818

NPCIL

PUMPED STORAGE SCHEMES

(P S S s)

THDC

1919

NPCIL• PSS are essential to meet the peak demand, as also to

provide a balancing load to the base load Thermal and Nuclear Power Stations including Wind Energy Generating Stations.

• The PSS is essentially a conversion facility, a banking transaction.

• THDC & NPCIL JV would be creating this conversion facility and the Users would be required to provide off peak power and receive back the power during peak hours after adjusting the losses etc. and paying the conversion charges.

Pumped Storage Schemes - Concept

THDC

2020

NPCIL

• The identified potential of Pumped Storage Schemes in the country is 94,000 MW.

• Western Region alone has potential of 38,000 MW, out of which around 27,000 MW is in the State of Maharashtra.

Pumped Storage Schemes-PotentialTHDC

2121

NPCIL

• Central Electricity Authority (CEA) identified the following PSSs in Maharashtra, which can be taken up for early implementation :

-Malshej Ghat PSS (600 MW) – in Taluk Shahpur-Humbarli PSS (400 MW) – upstream of Koyna

• The preliminary DPRs for the above Projects were prepared by the Irrigation Department of the Government of Maharashtra during 1996-97.

Pumped Storage Schemes (Contd…)THDC

2222

NPCIL

• DPRs of these two schemes are to be reviewed & updated and projects to be developed by THDC & NPCIL JV. THDC & NPCIL JV in the process of discussions with Government of Maharashtra in this regard.

Pumped Storage Schemes (Contd…)

THDC

2323

NPCIL THDC

24

Following factors haunt the system due to peak energy shortage :

• High tariff• Blackout cost due to sudden failures• Rostering losses• Low frequency problems• Total grid collapse

24

NPCIL THDC

Justification of the PSP schemes

25

• Abnormal financial burden on the beneficiaries due to High UI charges (up to Rs. 10 per unit)

• Forced large capacity addition. Out of which thermal, nuclear or wind power development necessitates PSS addition

25

NPCIL THDC


26

• PSPs are energy banks, which provide the power at the critical grid position

• Poor Hydro-thermal mix in Western Region• Strained Grid due to dangerously reduced

frequency• Optimal use of installed capacity• Optimal use of precious water by recycling

process

26

NPCIL THDC


27

• Increasing gap between peak & off-peak requirement

• Converts cheap power to optimally priced power (cheaper than the prevailing UI rate), thus saving substantially for the Users

27

NPCIL THDC


2828

NPCIL

• As an example for the month of July’07 an amount of Rs. 44.62 Crores is payable by Maharashtra to the UI Pool Account . This is a huge amount which could be substantially reduced by fulfilling the peak demand through supply of off-peak energy as banking transaction from the proposed PSP.

• As per the data available the UI Amount payable annually by Maharashtra is around Rs. 300–350 Crores.

• Non utilization of off-peak energy is criminal wastage of installed capacity

2929

NPCILTHDC

Power supply position in Western Region(FY 2007-2008)

Peak EnergyDemand 31,772 MW 2,15,983 MU

Availability 25,257 MW 1,86,904 MUSurplus (+)/

Deficit (-)(-) 6,515 MW

(-) 20.5%(-) 29,079 MU

(-) 13.5%

Source: as per CEA

3030

NPCILTHDC

PROJECTED DEMAND/AVAILABILITY POSITION IN WESTERN REGION

(in 2011-12)

MW Surplus(+)/Deficit (-)

Demand Availability

Winter Peak 51,770 46,132 (-) 5,458

Off-Peak 33,651 43,037 (+) 9,386

Summer Peak 51,770 45,508 (-) 6,232

Off-Peak 36,239 43,052 (+) 6,813

3131

NPCILProjected demand/ availability position

in Unified Grid of NR, ER & WR (in 2011-12)

(In MW)

NR ER WR Net Surplus/ Deficit

Winter Peak

-8,768 + 12,513 - 5,458 -1,713

Winter Off-peak

-5,288 +14,832 + 9,386 +18,930

Summer Peak

-2,598 +12,445 - 6,232 +3,615

Summer Off-peak

-1,853 +14,680 + 6,813 +19,640

Source : CEA 3232

NPCIL

MAHARASHTRA - POWER SUPPLY POSITIONDURING 11TH PLAN

2007-08 2011-12 (Projected)

Installed capacity - MW

Peak availability - MW

Peak load - MW

Surplus (Deficit) - MW

Surplus (Deficit) - %

Energy Availability - MKWH

Energy Requirement - MKWH

Surplus (Deficit) - MKWH

Surplus (Deficit) - %

16,045 MW

14,523 MW

17,927 MW

- 3,403 MW

- 19.0

92,720.7

1,10,201

- 17,480

- 15.9

20,295 MW

18,975 MW

21,954 MW

- 2,978 MW

-13.6

1,30,122

1,25,661

4,461.4

+3.6

3333

NPCIL

• From the above data of CEA, it can be concluded that in 2011-12, the peak shortage (2978 MW) would be overcome by utilizing the surplus energy (4,461 MU) available in the Maharashtra State through the proposed Malshejghat & Humbarli PSSs .

3434

NPCILTHDC

Hydro : Thermal Ratio - WR

March,2006 2011-12(Projected)

ThermalHydroTotal

27,340 MW6,681 MW34,021 MW

50,414 MW8,188 MW58,602 MW

Hydro:Thermal Mix 19.6 : 80.4 14 : 86

Justification of the schemes

Source : CEA

3535

NPCIL THDC

• Considering the cost of input energy (for pumping operation) as Rs. 2.00 per unit, conversion charges as Rs. 2.40 per unit of the output energy and conversion losses @ 20% the output power would be costing approximately Rs. 4.90 per unit which is still cheaper than the full UI rate of Rs. 10.00 per unit and is at par with UI rate at frequency of 49.54 Hz.

• It may be seen that for considerable period of time, the frequency remained below 49.36 Hz in Western Region, thereby implying that the above parameters considered for conversion are quite economical for operation of PSP in Western Region.

3636

NPCIL THDCCost of Power generated from PSP based on different input power cost

7.401.002.404.00

6.150.752.403.00

4.900.52.402.00

Cost of generated

powerRs./unit

Conversion losses

Rs./unit

Conversion cost

Rs./unit

Pumping power cost

Rs./unit

3737

NPCIL THDC

It is worth mentioning here that despite the similar conditions of shortage of off-peak power in Northern Region, THDC has signed PPAswith Delhi, Rajasthan, Uttarakhand and Haryana for supply of power to 1000MW Tehri PSP for pumping and getting back the corresponding peak power after adjusting the conversion losses. The Tehri PSP is under implementation and is scheduled to be commissioned in the current five year Plan.

3838

NPCILActivities Time Required from

date of Signing of MoU

•Mobilisation at Site & Fixation of Agency

•DPR Updation

•TEC

•GOI Approvals

•Implementation

Total completion period

02 Months

04 Months

02 Months

04 Months

36 Months

48 Months

Completion Time Schedule

THDC

3939

NPCIL THDC

• Supply of off peak power by MSEB.• Supply of power during comparatively better

frequency period.• Supply of power from the grid by GoM• Supply of power from western region

beneficiaries

Various alternatives available for supply of power to PSSs for pumping operation

4040

NPCIL THDC

• WRPC to recommend the constituents for giving their willingness to provide pumping energy to THDC & NPCIL JV and get back the Peak power.

• However the first right for supply of the off-peak power will be with GoM/ MSEB.

• WRPC to recommend GoM for review & upgradation of DPRs by THDC & NPCIL JV and start early development of projects considering the benefits to the Grid.

ACTIONS SOLICITED FROM WRPC

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NPCIL THDC

• Based on the present pace of development of power projects in western region and the scenario envisaged by the CEA surplus off-peak power will be available in the western grid by March, 2012 to cater to the need of pumping operations for 600 MW Malshejghat PSS & 400 MW Humbarli PSS.

ACTIONS SOLICITED FROM WRPC

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Date post:	17-Mar-2018
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