An article in the Nikkei recently may well spell trouble for the fledgling alternative energy industry-and particularly for the wind power generation sector, where most energy investment has taken place in Japan. Apparently residents in the town of Toyohashi, Aichi Prefecture, have petitioned a wind turbine farm operator (Nikkei doesn't mention who) to close down their plant in the evening hours-on the basis that low frequency noise emanating from the wind farm is causing residents in the area serious health problems.