Industry figures say slump in buisness is the first clear sign of a long-feared slowdown in renewable energy investment

Japanese group to buy Horizon Nuclear Power, which is to build six new reactors, for £696m and plans to invest about £20bn in the UK sector

FERC, the US regulator, is seeking a recond penalty of $435m from Barclays for allegedly manipulating the electricity market from 2006 to 2008