Government support for start-up solar company likely to raise spectre of bankrupt Solyndra
Republicans seek to counter Obama's 'war on coal'
First grid-connected, commercial-scale tidal device set to come online in October off the coast of Maine
New system gives drivers real time data on which charging points are available in eight countries
Report identifies five minerals used to make wind turbines and electric cars that are likely to face supply challenges through to 2015
Energy secretary spends more than five hours facing House Committee questions, hours after bankrupt solar company postpones sale until next year
Governments and businesses to face fresh calls to agree an emission-cutting plan at the forthcoming Durban summit
The US government's loan programme is encouraging new technology and creating sustainable jobs - the UK should follow suit
Three solar plants and a nationwide rooftop scheme net billion dollar deals ensuring controversial programme ends with a bang
Two solar plants finalise deals before end of week deadline, as details emerge of bankrupt Solyndra's whistling robots