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The Kelanitissa Power Station is a state-owned power station located on the south bank of the Kelani River in the northern part of the city of Colombo, Sri Lanka. Commissioned in 1964, it is the first thermal power station built in Sri Lanka, after the country gained independence. The facility has a current gross installed capacity of, a significant amount when compared to the total installed capacity of nearly in the year 2017.[1] The facility is owned and operated by the Ceylon Electricity Board.[2]
The power station has a total of 10 generation units: two boiler steam units, six gas turbines, one gas turbine, and one combined cycle unit. As of 2018, both units and two units were decommissioned after the commissioning of the combined cycle unit.[3] [2] The old units are now used as peak-load units. The was sent to Italy for renovations in 2011.[4]
The newest naphtha-fuelled combined cycle unit was commissioned in August 2002.[3] It consists of a gas turbine and a steam turbine, and one exhaust heat recovery boiler.[5] The project was funded by the Overseas Economic Cooperation Fund of Japan.[2] Initially, the capacity was planned at with two or three units, but a single unit with higher capacity was subsequently chosen.[5]
| Commissioned | Capacity (MW) | Unit | Model | Plant division | Status |
|---|---|---|---|---|---|
| 1964 | 25 | Boiler 1 | Boiler | Decommissioned | |
| 25 | Boiler 2 | Decommissioned | |||
| 1980 November | 20 | Gas turbine 1 | GE Frame 5 | Gas Turbine | Decommissioned |
| 1981 March | 20 | Gas turbine 2 | GE Frame 5 | Decommissioned | |
| 1981 April | 20 | Gas turbine 3 | GE Frame 5 | Operational | |
| 1981 December | 20 | Gas turbine 4 | GE Frame 5 | Operational | |
| 1982 March | 20 | Gas turbine 5 | GE Frame 5 | Operational | |
| 1982 April | 20 | Gas turbine 6 | GE Frame 5 | Operational | |
| 1997 August | 115 | Gas turbine 7 | GT7 | Operational | |
| 2002 August | 110 | Gas turbine 8 | Combined Cycle | Operational | |
| 55 | Steam turbine | ||||
| Year | Boiler | Total | |||
|---|---|---|---|---|---|
| 1969 | 97 | - | - | - | 97 |
| 1970 | 2 | - | - | - | 2 |
| 1971 | 18 | - | - | - | 18 |
| 1972 | 88 | - | - | - | 88 |
| 1973 | 261 | - | - | - | 261 |
| 1974 | 13 | - | - | - | 13 |
| 1975 | 1 | - | - | - | 1 |
| 1976 | 24 | - | - | - | 24 |
| 1977 | 2 | - | - | - | 2 |
| 1978 | 14 | - | - | - | 14 |
| 1979 | 58 | - | - | - | 58 |
| 1980 | 140 | 18 | - | - | 158 |
| 1981 | 98 | 183 | - | - | 281 |
| 1982 | 89 | 353 | - | - | 442 |
| 1983 | 147 | 735 | - | - | 882 |
| 1984 | 11 | 117 | - | - | 128 |
| 1985 | 0 | 9 | - | - | 9 |
| 1986 | - | 1 | - | - | 1 |
| 1987 | - | 314 | - | - | 314 |
| 1988 | - | 83 | - | - | 83 |
| 1989 | - | 1 | - | - | 1 |
| 1990 | 1 | 0 | - | - | 1 |
| 1991 | 103 | 40 | - | - | 143 |
| 1992 | 163 | 302 | - | - | 465 |
| 1993 | 88 | 12 | - | - | 100 |
| 1994 | 87 | 102 | - | - | 189 |
| 1995 | 51 | 127 | - | - | 178 |
| 1996 | 227 | 500 | - | - | 727 |
| 1997 | 196 | 431 | 168 | - | 795 |
| 1998 | 214 | 39 | 303 | - | 556 |
| 1999 | 128 | 204 | 355 | - | 687 |
| 2000 | 228 | 374 | 602 | - | 1,204 |
| 2001 | 200 | 400 | 281 | 70 | 951 |
| 2002 | 69 | 179 | 227 | 470 | 945 |
| 2003 | - | 38 | 293 | 855 | 1,186 |
| 2004 | - | 141 | 439 | 1,107 | 1,687 |
| 2005 | - | 22 | 277 | 1,007 | 1,306 |
| 2006 | - | 6 | 67 | 734 | 807 |
| 2007 | - | 48 | 220 | 1,096 | 1,364 |
| 2008 | - | 25 | 94 | 1,044 | 1,163 |
| 2009 | - | 98 | 137 | 920 | 1,155 |
| 2010 | - | 26 | 27 | 494 | 547 |
| 2011 | - | 77 | 244 | 256 | 577 |
| 2012 | - | 98 | 120 | 880 | 1,098 |
| 2013 | - | 1 | 17 | 611 | 629 |
| 2014 | - | 34 | 208 | 751 | 993 |
| 2015 | - | 1 | 24 | 660 | 685 |
| Total | 2,818 | 5,139 | 4,103 | 10,955 | 23,015 |