April 27, 2012. Japan will boost renewable-energy capacity by about 13 percent through the year ending March 2013 after it begins a price incentive program for generators this July, the Ministry of Economy, Trade and Industry said. Japan will add 2,500 megawatts of clean energy including solar and wind in the fiscal year, the ministry said. The country currently has a capacity of 18,750 megawatts. Utilities must pay above-normal rates to renewable energy producers under the incentive program. Costs will be passed onto power users as a surcharge of as much as 0.4 yen (0.5 cent) a kilowatt-hour, the ministry said. An average household will pay as much as 100 yen a month for the surcharge, it said.