Present Status of the Coal Power Sector in Sri Lanka
Transcript of Present Status of the Coal Power Sector in Sri Lanka
Present Status of the Coal Power Sector in Sri Lanka
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Eng. P.G.P.Indrasiri
Power Plant ManagerLakvijaya Coal Power Plant
Ceylon Electricity BoardSri Lanka
November 2017
• Assuring Energy Security
• Providing Energy Supply at the Least Economic Cost
• Providing Access to Energy Services
• Enhancing Self Reliance
• Conserving Energy and Improving Energy Efficiency
• Caring for the Environment
• Enhancing the Share of Renewable Energy
• Strengthening Good Governance in the Energy Sector
• Securing Future Energy Infrastructure
• Providing Opportunities for Innovation and Entrepreneurship
Energy Policy Elements
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SRI LANKAN POWER SECTOR - 2016
Installed capacity 4,054 MW
Peak Demand 2,483 MW
Electricity Generated 14,249 GWh
System Losses 10.3 %
Elec. Consumption per Capita 603 kWh
Level of Electrification 98%
(June 2016)
Installed Capacity and Peak Demand
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GDP Growth % & Elec. Demand Growth %
SRI LANKAN STATISTICS –POWER SECTOR
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Per capita electricity consumption‐2004‐2016
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The per capita electricity consumption in 2016 was 603 kWh/person.
SRI LANKAN POWER SYSTEM
• Until early 1990s’ Sri Lankan power system depended on Hydropower
• The available hydro generation capacity was adequate to providethe demand
• The first coal power plant of 300MW was added to the powersystem in year 2011
• Electricity Generation mix has shown a shift from hydropower tofossil fuel with :
‐ Increasing demand
‐ Unavailability of economically feasible sites for the developmentof major hydro resources
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PRESENT CAPACITY MIX AS OF DECEMBER 2016
Plant Name Capacity (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
Oil15%
CEB Coal22%
IPP Thermal
16%
Other RE13%
Capacity Share in 2016
CEB Hydro24%
CEB Thermal
Oil17%
CEB Coal36%
IPP Thermal
15%
Other RE8%
Energy Share in 2016
Actual Average Unit Cost of Electricity Generation -2016
2.32
6.58
17.59
24.34
28.37
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2.00
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CEB Hydro CEB Coal Renewables CEB Thermal IPP Thermal
Un
it C
ost
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R/k
Wh
)
Generation Technology
Average cost at selling point in 2016 = 18.09
Average cost at selling point in 2015 = 15.06
Coal in Sri Lanka
• CEB identified coal as an economically attractive fuel
option for electricity generation in 1980’s
• No coal plants were start to built until 2009 due to several
environmental and social issues
• The first 300MW Coal Power Plant commissioned in 2011
• 900MW (3x300MW) Lakvijaya Coal Power Plant is in
operation since October 2014
Present Situation
• Sri lanka does not have coal deposits
• Depending on the specifications of the coal for which the boiler is designed and environment concerns low sulphur & low ash coal for LVPP is imported mainly from
– South Africa
– Indonesia
– Russia
• Annual consumption of coal: 2.2 million metric tons
Present Situation
Particle Size : between 2mm and 50 mm
Moisture Content : < 15 %
Gross Calorific Value : 5800 ‐ 6300 kCal/kg
Ash Content : < 16 %
Sulphur content : < 1 %
Volatile matter : > 22.5 % and < 39.9%
Fixed carbon : > 43 %
Coal Specifications
As per the Draft Long Term Generation Expansion Plan 2018‐2037
Generation Planning Capacity Additions
Planning horizon for the next 20 years:
Thermal Based Power Plants 4500 MW
(Coal/LNG/GTs/Reciprocating Engines)
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
Thermal
Renewable Energy
Energy and Peak Demand – Actual/Forecast
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As per Long Term Generation Expansion Plan 2018‐2037
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LONG TERM GENERATION EXPNASION PLAN 2018-2037: Capacity Mix by 2037
15%
31%
32%
4%
13%
5%
Base Case
Major Hydro
ORE
Thermal ‐ Coal
Thermal ‐ Oil
Thermal ‐ LNG
PSPPCOAL
UPCOMING MAJOR THERMAL PROJECTS
Plant Year of Operation
100+70 MW Furnace Oil Power
Plant
2017/2018
3 x 35 MW Gas Turbine 2 Units by 2019
1 Unit by 2020
300 MW Natural Gas Fired
Combined Cycle Power Plant
Open Cycle – 2019
Combined Cycle ‐
2020
2 x 300MW High Efficient Eco
Friendly Coal Power Plant
(Feasibility study in progress)
2023/2024
FUTURE OPTIONS-CONVENTIONAL GENERATION
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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.
Proposed India – Sri Lanka Grid Interconnection
Cancelled ‐ Coal Power Plant Project
• Initially planned to be built the 2nd
Coal Power Plant as a joint venture between CEB and NTPC India in Trincomalee
• Capacity = 2x 250 MW and panned to start in 2016
• Estimated cost = USD 600 million
• Approval not granted by Public Utilities Commission Sri Lanka in the Long Term Generation Expansion Plan 2015‐2034
• Due to a Supreme Court order
Drawbacks of Coal Power Developments
Pre‐feasibility Study for 1200MW High‐Efficiency Eco‐friendly Coal‐Fired Thermal Power Plant at Trin
• Pre‐feasibility Study for 1200MW high‐efficiencyeco‐friendly coal‐fired thermal power plant was conductedat Trincomalee, Hambantota Port and Galle
• Government of Sri Lanka selected Trincomalee as acandidate site for 3rd coal‐fired thermal power plant in SriLanka.
• Similarly, Feasibility Study for Trincomalee was conducted byNEDO (J‐POWER etc.) in 2014.
Future Plans for Coal Power Plants
Future Plans for Coal Power Plants as per LTGEP • All future coal power plants are proposed to be
– highly efficient with strict emission controls,
– Indoor coal storages enclosed coal handling
• Mitigation measures result in an additional capital cost of approximately 700USD/kW compared with conventional coal power plant
• To minimize environmental impact, Supercritical Power plants were selected instead of subcritical coal power plants’
Future Plans for Coal Power Plants
• Disposal of Ash
• Spreading coal dust during the windy season
• Public awareness
• Publicity against Coal Power Plants
Present Issues- Public & Environmental