Finland's first 15 MW hybrid prototype power plant combining wind, solar and diesel power is being re-examined following a series of technical problems. Located on the south-western island of Tunhamn and commissioned by Nanon Oy in November 2004, the integrated system cost EUR 300,000 to develop and install and largely consists of solar panels, with three 20 kW wind turbines and a 22 kW diesel generator. "There have been some operational problems, but we are working on the technical aspects of the malfunctions," says Nanon's Timo Hakanpaa. "We expected to encounter technical problems. This technology is quite new, but we are confident the problems on the operational side will be temporary ones."