The man in charge of how the US spends $400bn to shift away from fossil fuels

The Department of Energy's loan programs office was essentially dormant', says Jigar Shah, its head - but now it's ready to bankroll clean energy projects

Deep in the confines of the hulking, brutalist headquarters of the US Department of Energy, down one of its long, starkly lit corridors, sits a small, unheralded office that is poised to play a pivotal role in America's shift away from fossil fuels and help the world stave off disastrous global heating.

The department's loan programs office (LPO) was essentially dormant" under Donald Trump, according to its head, Jigar Shah, but has now come roaring back with a huge war chest to bankroll emerging clean energy projects and technology.