Investment

T Boone Pickens' high profile plan for the largest wind farm in the US to be delayed amid funding difficulties

Environmental groups and MPs demand Shell and BP profits are invested in renewables and energy efficiency

Company signs five-year supply deal with panel installation specialist SolarCity

Ice-based cooling technology promises to slash daytime power requirements for air conditioning units

DEK Institutional Investors call on top bosses to join UN initiative promoting environmental, social and governance best practices

Chip giant's investment arm continues clean tech push with two fresh funding rounds

European firms could leave the region as a result of emissions trading scheme, warns International Energy Agency

French energy giant shells out £39m for UK-listed emission reduction project operator

Greenpeace study argues world's energy needs can be met without nuclear or fossil fuels

Coal-reliant energy giant Dynegy agrees to report climate change related risks