+ All Categories
Home > Documents > State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1...

State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1...

Date post: 19-Jan-2021
Category:
Upload: others
View: 5 times
Download: 0 times
Share this document with a friend
22
1 State Load Despatch Centre TANTRANSCO Procedure For Intra State Short Term Open Access
Transcript
Page 1: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

1

State Load Despatch Centre TANTRANSCO

Procedure

For

Intra State Short Term Open Access

Page 2: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

2

PROCEDURES / GUIDELINES FOR SHORT TERM OPEN ACCESS

1. Preface:

1.1 This procedure for Short Term Open Access (STOA) is being issued in

compliance to the “Tamil Nadu State Electricity Regulatory Commission

(Grid Connectivity and Intra State Open Access) Regulations, 2014” dated

13th March 2014 , and subsequent amendments thereof, if any, hereinafter

referred to as “ the Regulations”.

1.2 This procedure covers guidelines, terms and conditions and application

formats for availing Intra state short term open access of Transmission

and/or Distribution system of the licensee(s) i.e Tamil Nadu Transmission

Corporation Ltd and Tamil Nadu Generation & Distribution Corporation Ltd.

1.3 This procedure shall be applicable for reservation of Transmission and

Distribution capacity for short term sale or purchase of power by Open

Access customer or existing consumers of TANGEDCO as well as bulk

consumers/CPPs/IPPs or a state utility or an intra state entity as a buyer or

seller as entitled to avail short term Open Access under Open access

Regulations, referred to as “Short Term Open Access Customer‟

2.0 Mandatory Requirements:

2.1 The following eligibility requirements /pre-conditions are required to be

fulfilled by the Open Access customer before applying/availing the Short

Term Open Access (STOA):

Eligibility Requirements:

The eligibility requirements/conditions for grant of STOA shall be as laid

Page 3: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

3

down in the Principal Regulations, as amended from time to time, read with

following requirements:

i) The short term customer shall be eligible for STOA over the surplus

capacity available on the intra-State transmission system/distribution

system after use by the long term customers and the medium term

customers, by virtue of Inherent Design Margins;

a) Margins available due to variation in power flows; and

b) Margins available due to in-built spare transmission / distribution

capacity created to cater to future load growth.

ii) The licensees, generating companies (Only after declaration of

commercial operation), captive generating plants and consumers shall

be eligible for open access to the intra-State transmission system of the

TANTRANSO/TANGEDCO on payment of transmission /wheeling and

other charges as may be determined by the Commission from time to

time.

iii) The consumer/buyer or generating station/sellers seeking STOA

should already be connected to Transmission/Distribution System of

Tamil Nadu at 11 KV or above.

iv) All HT consumers shall be eligible for open access upto their

contracted demand. Further the consumers who are not on dedicated

feeder shall also be allowed for open access subject to the condition

that they agree to resorting to restrictions imposed by the utility on

such feeders.

v) An un-discharged insolvent or a person having outstanding dues

against him for more than two months billing of

distribution/transmission licensee at the time of application shall not be

eligible for open access. In case a person, to whom open access has

Page 4: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

4

already been allowed, is declared insolvent or is having outstanding

dues for more than two months billing of transmission or distribution

Licensee, he shall not be eligible for open access from the day he is

adjudged as insolvent or failed to clear the amount outstanding for

more than two months billing.

vi) Having regard to operational constraints and other relevant factors,

open access shall be allowed to all EHT & HT consumers within their

contracted (sanctioned) demand subject to the terms and conditions of

supply. In case of generation of electricity from new and renewable

sources, open access shall be allowed as specifically permitted by the

Commission in its relevant regulations/orders in force.

vii) For the consumers of distribution licensee, the demand in MW shall be

computed based on sanctioned Contracted Demand and Power factor

as 0.9.

viii) The total open access transaction by any consumer through

Exchange/Bilateral/third party/CPP wheeling should not exceed the

sanctioned demand.

ix) During peak load hour restrictions in vogue, the open access customers

shall restrict their total drawl including open access power to the extent

of the peak load exemption allowed.

2.2 On meeting the mandatory eligibility requirements, the applicant shall be

issued the approval for grant of Short Term Open Access/NOC/Standing

clearance/concurrence whichever is applicable by the Nodal Agency.

Thereafter, the following pre-conditions are required to be fulfilled by the

Open Access applicant:-

Page 5: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

5

i) Metering Requirements:

The Open Access Customer shall provide ABT compliant Special Energy

Meters at the point(s) of injection and point(s) of drawl as specified in the

Central Electricity Authority (Installation and Operation of Meters) Regulations,

2006 irrespective of allotted capacity. If not provided the meters shall be

provided by the STU or the Distribution Licensee as the case may be, at the

cost of open access customers both at the injection and drawal points.

ii) Communication Facility:

Main and Check Meters shall have facility to communicate their

readings/data to the State Load Dispatch Centre (SLDC) on real time basis. In

case of generators/sellers and open access customers (non-consumers of

TANGEDCO), the facilities/equipments for communication/transfer of metering

parameters to SLDC control room on real time basis through two independent

channels is to be provided by them at their cost at their end.

iii) Control Room :

To communicate with SLDC & any of sub SLDCs, an Open Access

Customer shall be required to provide round the clock control room at its

premises with following facilities:

a) Telephone/Mobile with STD. b) Transmission and receipt of fax and e-mail.

2.3 SLDC/TANTRANSCO reserves right to deny open access to customers or

withdraw it any time in case of not fulfilling any of the eligibility conditions

like payment defaults, etc or otherwise due to any technical/operational

constraints. Reasons for such denial/withdrawal shall be immediately conveyed

to the customer.

2.4 The open access generator shall not inject power into grid without valid

approval of concerned Nodal Agency. The unauthorised injection of power and

over and above the permitted quantum for open access will not be accounted

Page 6: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

6

and compensated.

2.5 If any of the open access generator/consumer does not obey the SLDC

instructions, necessary penalty is to be imposed as per the clause 33 (5) of

the Electricity Act, 2003.

3.0 Procedure for short-term Open Access:

An application for open access shall be made in the prescribed Form and

submitted to the SLDC in accordance with these Regulations. The application

shall be accompanied by an undertaking of not having entered into Power

purchase agreement (PPA) or any other bilateral agreement with more than

one person for the same quantum of power for which open access is sought.

The application shall be addressed to the following address.

Superintending Engineer/LD&GO TANTRANSCO SLDC Block TNEB Complex 144, Annasalai, Chennai-2

3.1 Involving inter-State transmission system:

i) SLDC shall issue the concurrence/No Objection certificate for the open

access customers who opt for interstate short term open access

transactions as per Central Electricity Regulatory Commission (Open

Access in inter-State Transmission) Regulations, 2008, or its statutory re-

enactments, as amended from time to time:

ii) Provided that in respect of a consumer connected to a distribution system

seeking inter-State short-term open access, the SLDC, before giving its

consent to the RLDC as required under the Central Commission’s

regulations, shall require the consumer to submit the consent of the

distribution licensee concerned.

Page 7: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

7

iii) Application for concurrence from SLDC can be made by a Generating

station including a captive generating plant, a consumer, an electricity

trader or distribution licensee. However the power station from which the

power is being sourced should have been already connected to grid in

line with the Regulations.

iv)The generators /Trader applying for concurrence of SLDC to sell their

power under interstate open access should submit the application in the

prescribed form in FORMAT – ST-5

v)The consumer applying for concurrence of SLDC to purchase power under

interstate open access should submit the application in the prescribed

form in FORMAT – ST-6

vi) After getting concurrence from SLDC, the HT consumer/generator shall

approach SRLDC/Power exchange as the case may be for further

processing of application.

3.2 Involving intra-State transmission system:

(a) Open Access in advance

i) Application may be submitted to the SLDC, Chennai seeking short-term

open access upto the fourth month, considering the month in which an

application is made being the first month. The monthly transaction must

be for the calendar month.

ii) Separate application shall be made for each month and for each

transaction in a month.

iii) The application to the SLDC shall be as per form given in FORMAT-ST1

containing such details as capacity needed, generation planned or power

purchase contracted, point of injection, point of drawal, duration of

availing open access, time period and such other additional information as

may be required by the SLDC. The application shall be accompanied by a

Page 8: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

8

non-refundable application fee in cash or by demand draft in favour of the

officer so notified by SLDC.

iv) An application for grant of open access commencing in any month may be

submitted in a cover marked ―Application for Short-Term Open

Access – in advance up to 15th day of the preceding month. For

example, application for grant of open access commencing in the month

of July shall be received up to 15th day of June.

v) SLDC shall acknowledge receipt of the application by indicating time and

date on ―ACKNOWLEDGEMENT to the applicant.

vi) A consumer of distribution licensee applying for open access shall also

furnish a copy of his application to the distribution licensee of his area of

supply.

vii) The distribution licensee shall conduct the feasibility study and issue the

NOC for such open access after verifying the data provided by the

consumer.

viii) SLDC shall verify the NOC obtained from the distribution licensee

concerned.

ix) All applications received shall be taken up for consideration together and

processed as per allotment priority criteria as specified in the regulation.

x) SLDC shall convey grant of open access or otherwise with specific reasons

in FORMAT-ST2 along with schedule of payments to the consumer latest

by 19th day of such preceding month.

(b) Day-Ahead Open Access

i) An application for grant of day-ahead open access may be received by

SLDC within three days prior to the date of scheduling but not later than

1300 Hours of the day immediately preceeding the day of scheduling for

Page 9: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

9

day-ahead transaction. For example, application for day-ahead transaction

on 25th day of July shall be received on 22nd day or 23rd day or upto

1300 hours on 24th day of that month.

ii) SLDC shall check for congestion and NOC obtained from the EDC

concerned and convey grant of approval or otherwise in FORMAT-ST2.

All other provisions of application for short-term open access shall apply.

(C) Application fee (Non-Refundable):

For intra state short term open access:-

Sl.No.

Location of drawl and

injection point Application Fee

Injection Drawl

For capacity

10MW and

above

For capacity

less than

10MW

1 Distn System Distn System 2,000 2,000

2 Distn System

Intra State

Transmission

System

5,000 5,000

3

Intra State

Transmission

System

Intra State

Transmission

System

5,000 5,000

4

Intra State

Transmission

System

Distn System 5,000 5,000

** Distribution system : Drawal & injection voltage 33KV and below.

For inter state transmission system, the concurrence processing fee

for NOC from SLDC shall be Rs.5000/- as amended from time to time as per CERC

regulation

Page 10: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

10

(d) Procedure for scheduling transaction in a contingency.

In the event of a contingency, the buying utility may locate a source of

power to meet short-term contingency requirement even after the cut-off time

of 1300 hrs of the preceding day and apply to the nodal agency for open

access and scheduling and in that event, the nodal agency shall endeavour to

accommodate such request as soon as and to the extent practically feasible, in

accordance with the detailed procedure.

(e) Bidding Procedure

i) If the capacity sought by the consumers for Open Access in advance for the

following month is more than the available capacity or SLDC perceives

congestion of any element of transmission and distribution system involved

in the transaction, the allocation shall be made through electronic bidding

procedure.

ii) The decision of SLDC in respect of an expected congestion shall be final and

binding.

iii) SLDC shall convey information of congestion and decision for invitation of

bidding indicating floor price in FORMAT-ST3 to the applicants .

iv) SLDC shall also display the bidding information on its website.

v) The floor price of transmission and wheeling charges determined on the basis

of relevant order of the Commission shall be indicated in FORMAT-ST3.

vi) The Bids shall be accepted in FORMAT-ST4 upto the ―bid closing time‖ as

indicated in bidding invitation FORMAT-ST3. Modification / amendment to a

bid, once submitted shall not be entertained.

vii) If any consumer does not participate in bidding process, his application shall

be deemed to have been withdrawn and shall not be processed.

Page 11: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

11

viii) SLDC shall not entertain any request for extension of time/date for

submission of bids.

ix) The bidders shall quote price (rounded-off to whole number) in denomination

in which floor price has been determined.

x) The quoted price shall be arranged in descending order and allocation of

available capacities shall be accorded in such descending order until the

available capacity is exhausted.

xi) In case of equal price quoted by two or more consumers, the allocation from

the residual available capacity at any stage under sub-sub-clause (x) above

shall be made in proportion to capacity being sought by such consumers.

xii) All consumers, in favour of whom full capacities have been allotted, shall pay

the highest price obtained from bids.

xiii) The consumers, who are allotted less capacity, shall pay the price as quoted

by them .

xiv) SLDC shall reject bids which are incomplete, vague in any manner or not

found in conformity with the bidding procedure.

xv) The successful bidder, in favour of whom the capacities have been allocated,

shall pay transmission charges, wheeling charges, as the case may be,

determined by bidding under sub-sub clause (xii) or (xiii) of this clause.

(f) The reserved capacity by a short-term open access customer is not transferable

to others.

(g) The capacity available as a result of surrender or reduction or cancellation of

the reserved capacity by the State Load Dispatch Centre, may be reserved for

any other short-term open access customer in accordance with these

regulations.

Page 12: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

12

(h) On expiry of the period of the short-term open access, the short-term consumer

shall not be entitled to any overriding preference for renewal of the term.

4.0 Revision of Open Access approval:-

i) The short-term open access schedules accepted by the SLDC in advance or on

first-come-first-served basis may be cancelled or revised downwards on an

application to that effect made to the nodal agency by the short-term open

access customer:

Provided that such cancellation or downward revision of the short-term

open access schedules shall not be effective before expiry of a minimum

period of two (2) days:

Provided further that the day on which notice for cancellation or

downward revision of schedule is served on the nodal agency and the day

from which such cancellation or downward revision is to be implemented, shall

be excluded for computing the period of two (2) days.

ii) The person seeking cancellation or downward revision of short-term open

access schedule shall pay the transmission charges for the first two (2) days of

the period for which the cancellation or downward revision of schedule, as the

case may be, has been sought, in accordance with the schedule originally

approved by the nodal agency, and thereafter in accordance with the revised

schedule prepared by the nodal agency during the period of such cancellation

or downward revision.

iii) In case of cancellation, operating charges shall be payable for two (2) days or

the period of cancellation in days, whichever is less.

5.0 Consent by STU, SLDC or Distribution Licensee

(1) Inter-State open access : SLDC in the case of grant of short-term open

access shall convey its consent or otherwise as per the provisions respectively

of Central Electricity Regulatory Commission (Open Access in inter-State

Page 13: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

13

Transmission) Regulations, 2008, or their statutory re-enactments, as

amended from time to time. In case of applicant connected to the distribution

licensee, the applicant shall obtain the concurrence from the distribution

licensee and furnish the same along with the appliaction submitted to SLDC

for NOC.

(2) Intra-State Open Access:

(a) In respect of a consumer connected to a distribution system seeking Open

access, such consumer shall be required to submit the consent of the

distribution licensee concerned. The distribution licensee shall convey its

consent to the applicant within three (3) working days of receipt of the

application.

(b) While processing the application from a generating station seeking consent for

open access, the distribution licensee shall verify the following, namely-

(i) Existence of infrastructure necessary for time-block-wise energy metering

and accounting in accordance with the provisions of the State Grid Code in

force,

(ii) Availability of capacity in the distribution network, and.

(iii) Availability of RTU and communication facility to transmit real- time data to

SLDC.

(c) Where existence of necessary infrastructure and availability of capacity in the

distribution network has been established, the distribution licensee shall convey

its consent to the applicant within three (3) working days of receipt of the

application.

(d) In case the nodal agency finds that the application for consent is incomplete or

defective in any respect, it shall communicate the deficiency or defect to the

applicant by e-mail or fax or by any other usually recognized mode of

communication, within two (2) working days of receipt of the application:

Page 14: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

14

(e) In case the application has been found to be in order but the distribution

licensee refuses to give consent on the grounds of non-existence of necessary

infrastructure or unavailability of surplus capacity in the distribution network,

such refusal shall be communicated to the applicant by e-mail or fax or by any

other usually recognized mode of communication, within the period of three (3)

working days from the date of receipt of the application, along with reasons for

such refusal:

6.0 OPEN ACCESS CHARGES

The Short Term Open Access Customer shall pay the following charges for

Open Access as notified by the TNERC in its Regulations/ tariff order from time

to time.

A. Transmission and wheeling charges

Transmission and wheeling charges shall be leviable as determined by

TNERC. The charges will be levied on the quantum in MWHr cleared by the

concerned SLDC for bi-lateral transactions and Regional Load Despatch Centre

(RLDC) in case of collective transactions. Further for transaction under

intrastate open access the payment shall be for the quantum in MWHr at the

injecting point.

Wheeling charges where a dedicated distribution system has been

constructed for exclusive use of Open Access customer, the wheeling charges

for such open access customer dedicated system shall be worked out by the

Distribution Licensee(s) and got approved from the TNERC, which shall be

borne entirely by such open access customer till such time the surplus capacity

is allowed & used for other customer (s) or purposes.

B. Cross Subsidy Surcharge

Cross Subsidy Surcharge shall be leviable as determined by the Commission in

Page 15: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

15

its Order/Tariff Order which shall be payable to Distribution Licensee on per

unit basis by the open access customers based on the approved quantum.

C. Additional Surcharge

Additional surcharge will be applicable as determined by the Commission as per

Open Access Regulations as amended from time to time.

D. Scheduling & System Operation Charges

The scheduling and system operation charges @ Rs.2,000/- (Rupees Two

thousand only) per day or part of the day for each transaction , as amended from

time to time by the Commission , shall be recovered from short-term open access

customers.

In case of collective transaction, there will be no operating charges on a day

if there is no transaction on that day.

The Scheduling and system operation charges shall be payable even when

the open access customer happens to be a generating company or trading

Licensee, availing open access under these Regulations.

E. The following other charges are payable by the Open Access customers

wherever applicable in line with the regulations and approved by the commission

-Charges for Startup Power Supplied by the Distribution Licensee

- -Restoration charges

-Regulatory charges

-Congestion charges

-Any other charges imposed by the Central/State commission.

F. The existing procedure will be followed for collection of application fee and all

other charges until procurement of necessary software to implement the accounting

procedure as per the provisions of Regulation of ISOA 2014.

Page 16: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

16

7.0 Scheduling:-

i) Scheduling of inter-State open access transactions / Intra-State open access

transactions be as specified by the Central/state Commission in the Indian/ Tamil

Nadu Electricity Grid Code.

ii) While scheduling on day-ahead basis, Long-Term open access customers would

have the highest priority, followed by Short term customers and then followed by

short-term customers.

iii). In case of curtailment becoming necessary as result of deviation by the

applicant from final dispatch and drawl schedule intimated by SLDC, the use of

such intra-State system shall be curtailed first, to the full extent of such deviation.

3.3.In case of curtailment of capacity by SLDC, transmission charges payable shall

remain unaffected.

3.4. Till the implementation of intra state ABT mechanism in Tamilnadu the day

wise / block wise scheduling for STOA transactions shall be carried out only for

monitoring purpose without any commercial implications. Accordingly the

generators shall declare their Ex-Bus generation based on their OA approvals and

SLDC shall issue dispatch instructions based on their availability and OA approvals.

The Generators shall maintain their generation as per dispatch instruction issued

by SLDC. The procedure for imbalance energy accounting will be issued during

implementation of intrastate ABT mechanism in Tamilnadu.

With respect to Inter state sale of power

i) On approval by the SRLDC, scheduling of the proposed power sale quantum

will be commenced from the date of approval in line with the Scheduling

procedure illustrated in the IEGC 2014.

Page 17: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

17

ii) The generator has to convey their quantum of the power to be exchanged on

15-minute time block basis for the next day to SLDC and SLDC inturn will

send the same to SRLDC. The generators shall upload their schedules in

www.tnebldc.org and their schedule will be forwarded to SRLDC.

iii) Since the generators may have commitments for TANGEDCO and third

party sale within Tamil Nadu, their scheduling should be for all transation with

priority to TANGEDCO sale then to third party sale within Tamil nadu and then

only to the sale outside Tamil Nadu. Any revision in their generation should

also be incorporated accordingly.

iv) Any revision in Schedule should also be followed by SLDC and conveyed to

SRLDC. Concerned EDC should also monitor any revision in schedule with

respect to TANGEDCO/third party commitments and inform SLDC for any

gaming by the generators.

v) Because of transmission constraints, to maintain grid security as decided

by SLDC/ SRLDC may curtail transactions in the manner decided by them to

ease the congestion, as per Regulations.

Revision in Schedule. –

Revision of scheduled energy shall be permitted in accordance with the

provisions of IEGC or the Tamil Nadu Electricity Grid Code, as the case may be.

8.0 Transmission and Distribution Losses.

The STOA Customer shall bear the losses as under:-

1) Inter-State Open Access:

1. In the case of HT consumer purchase power from outside Tamilnadu,the

power received at ex-periphery of TN towards scheduling to the HT

consumer shall be subjected to deduction of Transmission and Distribution

Page 18: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

18

losses in kind applicable to TANTRANSCO and TANGEDCO network as per

prevailing TNERC orders and TANTRANSCO &TANGEDCO instructions

depending upon the voltage level in which they are connected.

2. In the case of generators sell the power outside Tamilnadu, the generator

shall compensate the Transmission and Distribution losses in kind

applicable to TANTRANSCO and TANGEDCO network and injection zone

loss as per prevailing CERC regulations.

2) Intra-State Open Access:

The Transmission & Distribution losses for the Intra-State system shall be as

per the prevailing Tariff Orders or any specific order(s) which shall be borne

by the Open Access customer.

9.0 IMBALANCE AND REACTIVE ENERGY CHARGES With respect to Inter-state transmission system

Imbalance Charge is applicable for the generators in Tamilnadu as per

CERC (Deviation Settlement Mechanism and related matters) Regulations 2014,

dt.06.01.2014. This will be extended to the OA Consumer of the generator on

implementation of Intra-State ABT, by the TNERC .

Over injection by the Generator over and above the scheduled energy will be

treated as lapsed and under injection below their schedule will be charged as per CERC

(Deviation Settlement Mechanism and related matters) Regulations 2014, dt.06.01.2014

The OA generator shall submit an undertaking that they should pay the

prevailing deviation energy charges for the energy generated below the

scheduled energy and should not claim any charges for energy injected over

and above the scheduled energy (Format – ST-7)

Till the implementation of Intra-State ABT, the imbalance charges for the

consumers shall be regulated as below:

Page 19: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

19

(b) In case of actual energy/demand drawl by the OA consumer in a billing cycle is

equal to or less than the permitted energy/demand (based on contracted

demand and energy or quota demand and energy as applicable), the OA

consumer shall pay at the applicable tariff rates of that category of consumer as

determined by the Commission from time to time;

(c) In case of actual energy drawl/demand by OA consumer in a billing cycle is more

than the permitted energy/demand (based on contracted demand and energy or

quota demand and energy as applicable), payment for the energy/demand over

and above the permitted energy/demand shall have to be made at the excess

energy/demand charges as specified by the Commission for such categories of

consumers in the regulation/order issued from time to time.

10.0 Reactive Energy Charge. –

The payment for the reactive energy charges by open access customers shall be

in accordance with provisions stipulated in the Commission’s State Grid Code or

Regulations or Orders in force.

11.0 Billing, collection and disbursement. –

The monthly billing (Calendar month) in respect of the charges payable under these

Regulations shall be made as per the following procedure for Short-term Open

Access:

a. Inter-State transactions. –

i) Collection and disbursement of transmission charges for use of CTU and STU

systems and operating charges payable to RLDCs and SLDCs towards short-term

open access shall be made by the Nodal RLDC in accordance with the procedure

specified by the Central Commission;

Page 20: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

20

ii) The short-term open access customer connected to distribution system of a

distribution licensee shall pay to such distribution licensee the charges payable to

the distribution licensee within 3 days from the grant of the short-term open

access by the Nodal agency.

b. Intra-State transactions. –

i) The short-term open access customer shall deposit with SLDC the transmission

charges and operating charges for the entire period of open access within three

working days of grant of the short- term open access by SLDC, but before the

commencement of open access;

ii) In addition to the above, the short-term open access customer connected to

distribution system of a distribution licensee shall also pay to SLDC, the charges

payable to the distribution licensee for the entire period of open access within

three days from the grant of the short-term open access by the Nodal agency,

but before the commencement of open access. Such charges would be disbursed

to the distribution licensee on a weekly basis.

c. Late payment surcharge. –

In case the payment of any bill for charges payable under these Regulations is

delayed by an open access customer beyond the due date, without prejudice to

any action under the Act or any other Regulation thereunder, a late payment

surcharge at the rate of 1.5% per month shall be levied.

d. Default in payment. –

i) Non-payment of any charge or sum of money payable by the open access

customer under these Regulations including imbalance charges shall be

considered non-compliance of these Regulations and shall be liable for action

Page 21: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

21

under section142 of the Act in addition to action under section 56 of the Act.

The STU or any other transmission licensee or a distribution licensee may

discontinue open access after giving customer an advance notice of fifteen

days without prejudice to its right to recover such charges by suit.

ii) In case of default in payment of charges due to the State Load Despatch

Centre, the State Load Despatch Centre may refuse to schedule power to the

defaulting open access customer and direct the licensee concerned to

disconnect such customer from the grid.

12. GENERAL

12.1. The applicant shall keep the nodal agency and SLDC/STU indemnified at all

times and shall undertake to indemnify, defend and keep the nodal agency,

SLDC/STU harmless from any and all damages, losses, claims and actions

including those relating to injury to or death of any person or damage to property,

demands, suits, recoveries, costs and expenses, court costs, attorney fees, and all

other obligations by or to third parties, arising out of or resulting from the Short-

Term access transaction.

12.2. Any amendment/modification to an existing application, except for reasons

specifically mentioned in the procedure, shall be treated as a fresh application.

12.3. All costs/expenses/charges associated with the application, including bank

draft, bank guarantee etc. shall be borne by the applicant.

12.4. Payment of transmission charges, fees and charges for the concerned SLDC,

STU and Distribution licensee (TANGEDCO) as well as other charges such as

deviation energy charges etc. as applicable shall be made by the applicant as per

the Regulations and approved accounting procedure.

12.5. The applicant shall abide by the provisions of the Electricity Act, 2003, the

Regulations and Indian Electricity Grid Code, State Electricity Grid Code as

amended from time to time.

Page 22: State Load Despatch Centre TANTRANSCO PROCEDURE .pdfTNEB Complex 144, Annasalai, Chennai-2 3.1 Involving inter-State transmission system: i) SLDC shall issue the concurrence/No Objection

22

12.6. Open access customers to the intra-State transmission system and the

distribution system in the State on the date of coming into force of these Regulations

under an existing agreement or contract shall be entitled to continue to avail such

access to the transmission and distribution system on the same terms and conditions,

as stipulated under such existing agreement or contract except regulations 25 and 26

of this regulations. Regulations 25 and 26 are applicable to all open access

customers. Such persons shall on expiry of such existing agreement or contract be

eligible to avail Short-Term open access or Short-term open access under these

Regulation by making applications at least thirty days prior to the expiry of the

existing agreement/contract.

12.7. This procedure aims at easy and pragmatic disposal of applications made for

Short-Term Access in ISTS. However, some teething problems may still be

experienced. The various implications would be known only after practical experience

is gained by way of implementing these procedures. In order to resolve the same,

this procedure shall be reviewed or revised by the Nodal agency with prior approval

of TNERC.

12.8. All complaints regarding unfair practices, delays, discrimination, lack of

information, supply of wrong information or any other matter related to Short-Term

access in ISTS shall be directed to TNERC for redressal.


Recommended