RENEWABLE ENERGY INTEGRATION IN TAMILNADU

TN Hydro 8%

TN Thermal 15%

TN GAS 2%

TN IPP 3%

CPP 3%

CGS Thermal 15%

CGS Nuclear 6%

PURCHASE (LTOA, MTOA)

18%

Wind 28%

Solar 6%

Cogen 2%

Biomass 1%

RES 37%

Generator Installed Capacity in

MW

TN Hydro 2308

TN Thermal 4320

TN Gas 516

TN IPP 746

CGS Thermal 4340

CGS Nuclear 1703

Purchase 3190

CPP 986

Wind 7858

Solar 1693

Cogen 690

Biomass 230

Total 28580

Details Achieved On

Consumption 345.617 MU 29th April 2016

Demand 15343 MW 29th April 2016

Wind Energy 102.579 MU 4th August 2017

Wind Generation 5096 MW 27th July 2017

Solar Energy 9.681MU 12th August 2017

Solar Generation 1621 MW 5th July 2017

Solar Roof Top 91 MW 31st July 2017

6386 6778

3538

7649

10471

6411

7634

0

2000

4000

6000

8000

10000

12000Ra

jast

han

Guj

arat MP

Mah

aras

tra

Tam

ilnad

u AP

Karn

atak

a

Upto July 2017

8600 8800 6200 7600

11900 8100

6200

5762 8020

5675

11926 8884

9834

5697

0

25

25

50

75

0

1500

0

288

118

2469 649

543

1420

0

5000

10000

15000

20000

25000

Raja

stha

n

Guj

arat MP

Mah

aras

tra

Tam

ilnad

u AP

Karn

atak

a

Biomass

SHP

Solar

Wind

Conventional and others

63%

Wind & Solar 37%

27-08-2017

Total Day Consumption

255.542 MU

Conventional and others

159.904 MU

Wind & Solar 95.638 MU

Conventional and others

190,443

Wind 102,579

Solar 5,672

Wind & Solar

108.251

04-08-2017

Total Day Consumption

298.694 MU

Conventional and others

190.443 MU

Wind & Solar 108.251 MU

Conventional

307,979

92%

RES 25.420

8%

2017-18 All India

Total 12,42,009 MU

Conventional

29.553 77%

RES 8.880 23%

2017-18 Tamil Nadu

Total 38433 MU

Up to June-17 Up to July-17

May

-17

Jun-

17

Jul-1

7

Aug

-17

0,000

50,000

100,000

150,000

1 4 7 10 13 1619

2225

2831

Month

In M

U

Days

May-17

Jun-17

Jul-17

Aug-17

Total MU May 2017 – 1360 MU June 2017 – 2440 MU July 2017 - 2530 MU

Aug-17Aug-16

0,000

50,000

100,000

150,000

1 4 71013

1619

2225

2831

Month

In M

U

Days

Aug-17

Aug-16

Total MU August 2016 – 2510 MU August 2017 – 2010 MU

Hyd

ro Gas IP

P

CPP,

Cog

en,…

Sola

r

TN T

herm

al

Purc

hase

…

CGS

Win

d

010002000300040005000

00,3005,30

10,30

15,30

20,30

Sources

In M

W

Time

Hydro

Gas

IPP

CPP, Cogen, Biomass

Solar

TN Thermal

Purchase (LTOA, MTOA, STOA,Exchange)

CGS

Wind

Day Consumption – 298.694 MU Wind Generation - 102.579 MU

Hyd

ro Gas IP

P

CPP,

Cog

en,…

Win

d

Sola

r

TN T

herm

al

Purc

hase

…

CGS

010002000300040005000

00,3005,30

10,30

15,30

20,30

Sources

In M

W

Time

Hydro

Gas

IPP

CPP, Cogen, Biomass

Wind

Solar

TN Thermal

Day Consumption – 266.86 MU Wind Generation - 10.599 MU

Demand Curve for 2016 & 2017

13580

14538 14534

15343 15163

14643 14689

14443 14571 14699

14278

13779

14027

14082

14781 15240 15043

14687 14938

13958

10000

11000

12000

13000

14000

15000

16000

17000

18000

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Demand Actual met for 2016, 2017 &

Demand Forecast for 2017

2016 2017

Forecasted Demand for 2017

Demand Actual met for 2016

1

• Tamilnadu Backbone Network 1495 CKMS – Rs.2186.15 crores

2

• Tamilnadu Wind Power Corridor 846 CKMS – Rs.1418.18 crores

33

• Tamil Nadu Inter State transfer of Power 696 CKMS - Rs. 993.43 crores

TANTRANSCO developed the 400 KV Transmission corridors in order to

accommodate the wind energy

Accommodation of maximum wind generation results

• Deviation Settlement Mechanism

• Surrendering of Central Generating Stations power.

• Backing down power purchase from LTA/MTOA Generators.

• Purchase of high cost power from IPPs.

• Intraday purchase during sudden withdrawal of wind generation

• Backing down the TANGEDCO Thermal Stations.

• Compensation charges towards Backing down

To improve spinning reserve in Tamil Nadu control area, the following Hydro pumped storage projects are under pipeline.

• Kundah – 500 MW (4 X 125 MW) – expected by 2020-21

• Sillahalla - 2000 MW (4 x 500 MW) – expected by 2021-22

• Mettur – 500 MW (4 X 125 MW)

• Tamilnadu experiencing much difficulty as there is no spinning reserve from Hydro generation, deprival of monsoon / very low hydro storage and due to less gas allocation for gas stations

Suggestions

1. Forecasting and Balancing mechanism are an essential tools to aid the integration of the increasing amount of wind energy.

2. Proper Forecasting helps us to make Renewable Energy appear more like a conventional power station.

3. Storage technology to store the renewable energy have to be cost effective. Regulations have to made. Cost for Energy Storage to be included during bidding of PPA itself.

4. Available Transfer Capability (ATC) margin between Regions to be revised practically.

5. Metering and Data storage for State and for the Country for all Generations and Demand.

6. Compensation have to be considered by MNRE for accommodating Renewable Energy in Tamilnadu control area for the following items for maintaining thermal units at low PLF

Commercial losses to TANGEDCO on various accounts indirectly including compensation paid for the Central Generating Stations

Expenditure made on to increase the Transmission corridor capability

7. Future Conventional generating plants have to be designed for low operating flexibility.

8. Strict adherence LVRT & HVRT

9. Facility / Delegation of power for real time trading of power to System Operation to avoid undue delay atleast during wind season with viable commercial implications.

Hyd

ro Gas IP

P

Sola

r

CPP

& O

ther

s

Win

dTN

EB T

herm

alCG

S &

Pur

chas

e

0100020003000400050006000700080009000

Jan.

17Fe

b.17

Mrz

.17

Apr

.17

Mai

.17

Jun.

17

Jul.1

7

Aug

.17

Sources

In M

W

Month

Back

Hyd

ro Gas IP

P

Sola

r

CPP

& O

ther

sW

ind

TNEB

The

rmal

CGS

& P

urch

ase

0100020003000400050006000700080009000

Jan.

16Fe

b.16

Mrz

.16

Apr

.16

Mai

.16

Jun.

16Ju

l.16

Aug

.16

Sep.

16

Okt

.16

Nov

.16

Dez

.16

Sources

In M

W

Month

Back