CEYLON ELECTRICITY BOARD

Sri Lanka Presentation SAARC Workshop on “Load/Power Flow Studies Using PSS/E for Efficient National & Cross Border Interconnected Power Systems in South Asia”

18-20 July, 2018

Thimphu, Bhutan

Eng. P.L.G. Kariyawasam

Additional General Manager(Transmission)

Eng. U.N. Sanjaya

Electrical Engineer (Transmission Planning)

Power Sector Framework-Sri Lanka (Sri Lanka Electricity Act-2009 as amended in 2013)

Policy Maker Government, Ministry of Power and Renewable

Energy

Regulator Public Utilities of Sri Lanka (PUCSL)

LECO-Lanka Electricity Company (Pvt) Ltd

Country Information

Population 21.2 million

GDP per capita 3,835 USD (2016)

Area 65610 km2

Installed Capacity 4036 MW

Peak Demand 2523 MW

Annual Electricity Demand 14,620 GWh

Electrification Level 99%

Per Capita Electricity Consumption 603 kWh per yr

as at 2017

Installed Generation Capacity

Capacity (MW)

CEB Hydro 1377

CEB Thermal - Coal 810

CEB Thermal - Oil 604

IPP Thermal - Oil 687

Other RE 558

Total 4036

34%

20% 15%

17%

14% CEB Hydro

CEB Thermal-Coal CEB Thermal-Oil

IPP Thermal-Oil

Other Renewable Energy as at 2017

Peak Demand Forecast

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030

2738 2903 3077 3208 3346 3491 3643 3804

3972 4149

4335 4527

4726

Pe

ak D

em

and

(M

W)

Electricity Demand Growth Rate - 4.6%

Generation Forecast

0

2000

4000

6000

8000

10000

12000

20

18

20

19

20

20

20

21

20

22

20

23

20

24

20

25

20

26

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27

20

28

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29

20

30

20

31

20

32

20

33

20

34

20

35

20

36

20

37

Cap

acit

y (M

W)

Major Hydro Coal

Combined Cycle-LNG Combined Cycle-Oil

Oil Gas Turbine

Wind Mini hydro

Solar Biomass

Pumped Hydro Peak Demand

Hydro Generation

Thermal Generation - Coal

Main Load Center

Grid Substations

132/33 kV (No./ Capacity [MVA]) 56/4474

220/132/33 kV (No./Capacity [MVA]) 4/1600/380

220/132 (No./Capacity [MVA]) 4/1510

220/33 kV (No./ Capacity [MVA]) 1/75

132/11 kV (No. / Capacity [MVA]) 5/369

Transmission Lines (Route length)

220 kV, 2 cct. / (km) 582

220 kV, 1 cct. / (km) 20

132 kV, 4 cct. / (km) 4

132 kV, 2 cct. / (km) 1845

132 kV, 1 cct. / (km) 415

132 kV UG cable / (km) 51

Reactive Power Sources

Breaker Switched Capacitors / ( Mvar ) 485

Renewable Energy Development

Present Installed Capacity (MW)

Wind - 128MW Solar Rooftop - 100MW

Solar Grid Scale - 50MW Total VRE - 278MW

0

1000

2000

3000

4000

5000

6000

20

18

20

19

20

20

20

21

20

22

20

23

20

24

20

25

20

26

20

27

20

28

20

29

20

30

20

31

20

32

20

33

20

34

20

35

20

36

20

37

Cap

acit

y (M

W)

Major Hydro Mini hydro Wind Biomass Solar

as at 2017

Future Generation mix

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

20

18

20

19

20

20

20

21

20

22

20

23

20

24

20

25

20

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20

27

20

28

20

29

20

30

20

31

20

32

20

33

20

34

20

35

20

36

20

37

Cap

acit

y Sh

are

(%

)

Major Hydro Wind Mini hydro Solar

Biomass Coal Combined Cycle-LNG Combined Cycle-Oil

Oil Gas Turbine Pumped Hydro

Proposed Cross Border Interconnection with India

130 km

160 km

Madurai-New

Panaikulam

New Habarana

Talaimannar

New Cable Termination

Point (Sri Lanka)

Thirukketiswaram

48 km

New Cable Terminaton Point (India)

New Overhead line

(Land/Sea: India)

Overhead line

(Sri Lanka)

50 km

New cable proposal

70km

Dhanushkodi

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

• A Joint Technical Team has been appointed

Transmission Planning

Challenges

• Delay of implementation of committed transmission infrastructure due to Environmental and Social Considerations

• Raising of Finance for the Development Proposals

• Integration of Indigenous Renewable Energy Sources to meet the Renewable energy targets – Transmission Infrastructure development – out of hand Implementation schedules – Operational Planning restrictions

• India-Sri Lanka cross border interconnection – Selecting most feasible line route – Section of interconnection type (VSC or LCC) – Power exchange agreement

• Optimizing the reactive power requirement in the network • Human Resource Development and Capacity Building.