Agence France-Presse: Japan plans to soon require electricity companies to buy surplus power generated by household solar panels at about twice the current price, a government official said Tuesday. The scheme, to start as early as the fiscal year beginning in April, aims to promote solar power as part of efforts to cut greenhouse gas emissions that drive global warming, an industry ministry official said. “Japan has already led solar power technology in the world,” the official told AFP. “With the …