Germany's Conergy AG has won a contract to supply parts and build two solar farms in Thailand with a combined capacity of 21 megawatts.
Thai Solar Energy Co Ltd (TSE) chose Conergy for engineering, procurement and construction services at its solar parks in Suphan Buri and Kanchanaburi provinces.
The photovoltaic solar parks, covering nearly 500,000 square metres combined, will provide enough energy for 14,000 households.
Construction and commissioning of the parks will be finished next February, strengthening Thailand's leading position in Southeast Asian solar energy.
TSE now runs one solar thermal site in Kanchanaburi.
For Conergy, the 21-MW solar parks represent the fifth and sixth projects it has undertaken in Thailand.
A favourable government policy and powerful levels of sunlight have made Thailand a solar leader, said Alexander Lenz, the company's president for Asia and the Middle East.
"The Thai government wants a quarter of the country's energy requirement to use renewable energy sources by 2022," he said.
"This provides a baseline of support for the development of a solar energy market in Thailand."
Thailand now imports about half of its energy at a high cost, said Mr Lenz.
He added that each new solar installation contributes to the reduction of both dependence on energy imports and costs to the state.