Thailand's Ratchaburi Electricity Generating Holding has said that it plans to invest at least 80 billion baht ($2.4B) over the next ten years and more than double capacity.
Ratchaburi, the country's largest private power producer, has a generating capacity of 4,347 megawatts, and generates about 14% of Thailand's power.
According to managing director Narong Sitasuwan, the company aims to raise that to 8,800 megawatts by 2016.
"We should spend at least 80 billion baht starting from 2009 to invest in new power plant projects, mostly in foreign countries," Narong said.
The company is looking for opportunities to invest in Laos, Vietnam and Indonesia, he said.
It holds 25% stakes in two hydropower dams in Laos -- Nam Nguem 2 and Nam Nguem 3 -- and owns a 40% stake in the 1,653 MW Hong Sa lignite power plant in Laos.
The state-run Electricity Generating Authority of Thailand (EGAT), the country's sole power buyer, owns 45% of Ratchaburi and top coal miner Banpu has a 15% stake.