It is estimated that there is nearly 5000 km2 of windy areas with good-to-excellent wind resource potential in Sri Lanka. About 4100 km2 of the total windy area is on land. The windy land represents about 6% of the total land area (65,600 km2) of Sri Lanka. Using a conservative assumption of 5 MW per km2, this windy land could support more than 20,000 MW of potential installed capacity. The windy lagoon areas are estimated to encompass 700 km2 with a potential installed capacity of 3500 MW. The meteorological potential of all promising wind sites in Sri Lanka is a staggering 25,000MW. But due to system absorption limitations, only 200MW of this is feasible to be developed, in the business as usual scenario.