Construction of the power station began in November 2007, and progressed in two phases, with the first 200 MW phase completing in a record 10 months, and the second phase completing later in February 2010. Phase 1 of the power station was ceremonially inaugurated by PresidentMahinda Rajapakse on 8 December 2008.
Built over a 25 acres (0.10 km2) site, the power station will utilize two 100 MWGE Frame 9EGas Turbines and one GEsteam turbine, and will generate approximately 1,800 GWh annually.[2][3][4] The facility uses 25,000 m3/h (880,000 cu ft/h) of seawater for cooling.[5]
Conversion to LNG
On September 21, 2021, U.S. infrastructure firm New Fortress Energy announced they have acquired 40% stake in West Coast Power (Pvt) Ltd the owner of Yugadanavi power station along with the rights to develop a new LNG Terminal off the coast of Colombo that will supply LNG to the power plant. The agreement was approved by the Sri Lankan government allowing New Fortress Energy's investment in West Coast Power Ltd.[6][7] Trade Unions of the Ceylon Electricity Board (CEB) oppose the agreement and warned the Government of an islandwide power outage after 3 November if it fails to withdraw from the controversial agreement.[8]