The first such park will be set up in Mannar in northeastern Sri Lanka information minister Keheliya Rambukwella said.
He said the cabinet of ministers had approved the proposal from the energy ministry to have multiple plants at one location as it also made it easier to export power to the grid.
A 220kV grid substation in Mannar and a transmission line will be built via Anuradhapura or Vavuniya to the area with Asian Development Bank finance.
Sri Lanka's Sustainable Energy Authority is to set up the wind part in Mannar Island and mainland Mannar on state and private land.
At the moment wind plants are being built on a pre-set tariff through starndardized power purchase agreements of below 10MW.
Already 30MW of private plants have been commissioned and nine more plants with a total output of 60MW were in the pipline.
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But larger plants are likely to be more economical, the renewable agency has found.
Land will be given to investors on a negotiated tariff.
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