Kyushu Electric Power is studying a plan to build two large solar power stations on former coal-fired power station sites in Nagasaki Prefecture, writes Kyodo News International.
One of the facilities in the city of Omura, could have an output of about 10,000KW, making it one of the largest such plants in Kyushu, Japan's southernmost main island, according to company officials quoted by Kyodo News.
The other facility is planned for the city of Sasebo.
The plans are believed to be part of the power company's programme to set up solar facilities that can generate a combined total of 30,000KW by 2017.
Kyushu Electric has previously announced a plan to build a 3,000KW solar power station in Omuta, Fukuoka Prefecture to be operational by April 2011.