System Operation and Settlement Mechanism

Cross Border Trade/Regional Power Marketin South Asia

10-11 December, 2017Dhaka, Bangladesh

Present By:B.G. GeethaniChief Engineer (System Operations)

H.K.N.W. KodithuwakkuElectrical Engineer(Energy Marketing)

SRI LANKAN POWER SECTOR 2016

Installed capacity 4018 MW

Peak Demand 2483 MW

Electricity Generated 14249 GWh

System Losses 10.28 %

Elec. Consumption per Capita 603 kWh

Level of Electrification 98.71%

(June 2016)

SRI LANKAN POWER SECTOR 2016

CEB Own Power Plant

Hydro 1,384

Thermal Oil 604

Thermal Coal 900

Other Renewable Energy 3

Installed Capacity in MW

Private Power Purchase

Mini-Hydro 342

Thermal 611

ORE –Wind 128

ORE –Other 45

TOTAL Installed Capacity 4018 MW

SRI LANKAN POWER SECTOR 2016

Plant NameCapacity

(MW)Annual Energy (GWh)

CEB Hydro 1390 3498.7

CEB Thermal - Coal 900 5066.8

CEB Thermal - Oil 606 2360.2

IPP Thermal 652 2163.8

Other RE 516 1158.1

CEB Hydro34%

CEB Thermal

15%

CEB Coal22%

IPP Thermal

16%

Other RE

13%

Capacity Share in 2016

CEB Hydro24%

CEB Thermal

17%CEB Coal

36%

IPP Thermal

15%

Other RE8%

Energy Share in 2016

Capacity Mix and Energy Mix

SRI LANKAN POWER SECTOR 2016

Transmission and Distribution Losses 9.63%

Load Factor 65.67%

Avg. Cost per unit (at selling point) 18.09 Rs./kWh

Avg. selling price 16.18 Rs./kWh

Recoded Maximum peak Demand 2453 MW

SRI LANKAN STATISTICS –POWER SECTOR

Per Capita Electricity Consumption (2004-2016)

Installed Capacity and Peak Demand GDP Growth % & Elec. Demand Growth %

0

400

800

1200

1600

2000

2400

2800

3200

3600

4000

4400

19

96

19

97

19

98

19

99

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

20

12

20

13

20

14

20

15

20

16

Inst

. C

ap

aci

ty &

Pe

ak

Dem

an

d (M

W)

Year

Total Installed Capacity Peak Demand

0

100

200

300

400

500

600

700

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

kWh

/Per

son

Year

The per capita electricity consumption in 2016 was 603 kWh/person.

-20.0

-15.0

-10.0

-5.0

0.0

5.0

10.0

15.0

20.0

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

Gro

wth

Rate

(%

)

Year

GDP Electricity

Typical Load Curve of Sri LankaDaily Load Curve as at 08th March 2017

Actual Average Unit Cost of Electricity Generation 2016/2017 Nov

2.32

6.58

17.59

24.34

28.37

2.80

8.91

19.60

25.3626.75

0

5

10

15

20

25

30

CEB Hydro CEB Coal RenewableTechnology

CEB Thermal IPP thermal

Un

it G

en

erat

ion

Co

st (

Rs/

kWh

)

2016 20172016 2017 2016 2017 2016 2017 2016 2017

Average cost at selling point in 2016 = 18.09

Average cost at selling point in 2015 = 15.06

Average cost at selling point in 2017= 19.75

Average Selling Price in 2017 Nov (Rs/kWh ) 16.12CEB Coal price excludes financial cost

Present Transmission Network

Transmission LinesLength

(km)

220 kV, Double circuit 582

220 kV, Single Circuit 20

132 kV, Four Circuit 4

132 kV, Double Circuit 1842

132 kV, Single Circuit 415

132 kV UG cable 50

DescriptionNumber of

GSS

Total

Capacity

(MVA)

Grid Substations

132/33 kV 55 4222

220/132/33 kV 4 1600/380

220/33 kV 1 75

132/11 kV 5 369

220/132kV 4 1405

Reactive Power Sources

Capacitors (BSC) 310 Mvar

Operation Criteria

• Frequency• Normal Condition : 50.5 to 49.5Hz (±1%)• Under Emergency : 52 to 47Hz

• Voltage• 220/132kV : ±10%• 33kV : ±2%

• Max. Dispatch Unit Size : 25% of Demand

LONG TERM GENERATION EXPNASION PLAN 2018-2037

Energy and Peak Demand – Actual/Forecast

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

0

5000

10000

15000

20000

25000

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40000

45000

50000

De

man

d (

MW

)

Ener

gy (

GW

h)

Generation

Peak Demand

ForecastActual

LONG TERM GENERATION EXPNASION PLAN 2018-2037

Base Case Energy Mix by 2030 (Revised Base Case LTGEP 2018-2037 as per Oversight Committee on Energy)

Renewable, 34%

Thermal Coal, 41%

Thermal Oil, 0%

Thermal LNG, 23%

PSPP, 2%

Energy Mix 2030

Renewable

Thermal Coal

Thermal Oil

Thermal LNG

PSPP

LONG TERM GENERATION EXPNASION PLAN 2018-2037

Generation Planning Capacity Additions

During the planning horizon of next 20 years:

Thermal Based Power Plants(Coal/LNG/GTs/Reciprocating Engines)

4500 MW

Major Hydro 240 MW

Pumped Hydro 600 MW

Other Renewable Energy (Wind, Solar, Mini Hydro and Biomass)

2800 MW

Wind Solar Mini Hydro Biomass

1200 MW 1300 MW 220 MW 100 MW

Transmission Network Improvement2017 2027

Future Options-conventional Generation

HVDC Link Between Sri Lanka and India

• Technical and Economical feasibility studies are carried out between CEB andPower Grid India to interconnect two Networks by DC link.

• Project to be expedite as soon as the completion of the Feasibility Studies.

HVDC Link Between Sri Lanka and India

Scope of work for feasibility study of the project was :

2x500MW HVDC terminal stations each at Madurai-New (India) and Anuradhapura-New (Sri Lanka) along with HVDC bipole line: 360km

• Overhead Line (India): Madurai (New) to Panaikulam: 130km • Submarine Cable: Panaikulam (India) to Thirukketiswaram (SL): 120km• Overhead Line (SL): Thirukketiswaram to Anuradhapura (New): 110km

The tentative costing of above option was estimated to be USD 1031 Millionfor conventional HVDC and USD 1110 Million for VSC based HVDC

at Feb 2012 price level.

Background

HVDC Link Between Sri Lanka and India

Further, to reduce the cost of the interconnection, a revised route was considered with reduced length of the Submarine Cable (40km) with following scope:

2x500MW HVDC terminal stations each at Madurai-New (India) and New Anuradhapura (Sri Lanka) alongwith HVDC bipole line: 370km

• Overhead Line (India): Madurai (New) to near Dhanushkodi: 180km • Submarine Cable: Dhanushkodi (India) to Talaimannar (SL): 40km• Overhead Line (SL): Talaimannar to Anuradhapura (New): 150km

The tentative costing of revised option was estimated to be USD 515 Million for conventional HVDC and USD 564 Million for VSC based HVDC

at Apr 2016 price level.

HVDC Link Between Sri Lanka and India

HVDC Link Between Sri Lanka and India

• Studies are carrying out for following Three Options

Current Status

Option 1:

2x500MW HVDC terminal stations each at Madurai-New (India) and New Habarana (Sri

Lanka) along with HVDC bipole line: 410km

1. Overhead Line (India): Madurai(New)* to Panaikulam: 130km

2. Submarine Cable: Panaikulam (India) to Thirukketiswaram (SL): 120km

3. Overhead Line (SL): Thirukketiswaram to New Habarana: 160km

HVDC Link Between Sri Lanka and India

HVDC Link Between Sri Lanka and India

Option2:

2x500MW HVDC terminal stations each at Madurai-New (India) and New Habarana

(Sri Lanka) along with HVDC bipole line: 420km

1. Overhead Line (India): Madurai (New)* to near Dhanushkodi: 180km

2. Submarine Cable: Dhanushkodi (India) to Talaimannar (SL): 40km

3. Overhead Line (SL): Talaimannar to New Habarana: 200km

Current Status

HVDC Link Between Sri Lanka and India

HVDC Link Between Sri Lanka and IndiaCurrent Status

Option 3:

2x500MW HVDC terminal stations each at Madurai-New (India) and

Thirukketiswaram (Sri Lanka) along with HVDC bipole line: 410km (Map at

Exhibit-4)

1. Overhead Line (India): Madurai(New)* to near Dhanushkodi: 180km

2. Submarine Cable: Dhanushkodi (India) to Thirukketiswaram (SL): 70km

3. Overhead Line (SL): Thirukketiswaram to New Habarana: 160km

HVDC Link Between Sri Lanka and India

Thank You..!