Demco Public Company Limited has signed the contract to construct Khao Kho wind turbine power plant of capacity 60 MW with Khao Kho Wind Power Co. Ltd. Scope of work was design, procure, construct and install underground cable system, 115/22 kV substation, 115 kV transmission line for 45 km distance, construct 24 wind turbine foundations and main road 16 km long inside around the project area. Location is thung Samo Subdistrict, Khao Kho district, phetchabun province.