A man walks next to world's biggest gas turbine inside the gas-fired power plant of German utility giant E.ON in Irsching near the southern Bavarian town of Ingolstadt April 26, 2013. E.ON's modern but unprofitable Irsching gas-fired power station looks set to remain open as a reserve power plant under a deal hammered out with regulators and politicians, sources close to the talks said. REUTERS/Michaela Rehle (GERMANY - Tags: BUSINESS ENERGY)