(EnergyAsia, May 11, Monday) — India has agreed to help develop 10 hydropower projects in Bhutan by 2020. The projects will tap four of Bhutan’s main rivers, Puna Tsang Chhu, Wang Chhu, Amo Chhu and Drangme Chhu. Construction could begin as early as 2011. The country has an estimated hydropower potential of 30,000 megawatt, but…