Apart from hydro, which is 20% of the generating capacity and supplies 10% of generated electricity, neither is much exploited. At the end of 2011, total installed wind power stood at a measly 2,501 MW, of which an even less impressive 168 MW was installed anew that year. From the early nineties until the early 2000s, Japan was the leading solar power developer, when a one-million-roofs program created a big market that helped Japanese companies become the industry leaders. Growth in this sector picked up again only after the 2009 introduction of a feed-in law, in 2010, 991 MW was added to reach a total of 3618 MW. I didn't find data for 2011, however, after Fukushima, total installation targets were raised significantly.

_{*Lunatic*, n.
One whose delusions are out of fashion.}