With 30% coal generation in NRG Energy’s fleet, chief executive David Crane cannot exactly be hailed the Sun King. But the photovoltaic roof over the top tier of the MetLife Stadium in New Jersey is a crowning solar achievement for what may become the largest independent electricity generator in the US after its pending merger with GenOn is approved.

“Not all renewables are created equal and solar has versatility lacking in other technologies such as wind,” said Crane. “To NRG, solar is the gamechanger.” Keep reading →