Business Green: Suntech Power Holdings, one of the world’s largest photovoltaic module makers, yesterday announced plans for four new on-grid photovoltaic solar projects in China with a compbined capacity of 1.8GW. The New York Stock Exchange-listed company said it had signed solar plant construction deals with the governments of Shaanxi province and Shizuishan city in Ningxia Autonomous Region. The Shaanxi facility will have an installed capacity of 300MW, while the other three developments …