Investment

Humphrey Group to source 80 per cent of its power from two new wind turbines

Chinese manufacturer reports total shipments for 2012 beat expectations, making the company the world’s largest provider of solar panels

Programme of investments should see 170,000 extra seats, while slashing the carbon footprint of UK's railways

Planning permission granted for Countryside Renewables' project next to the village of Exning

South American nation plans to produce 90 per cent of its electricity from renewable sources by 2015

As Warren Buffett bets $2bn on US solar farms, a group of high-profile investors complete similar deal to acquire stake in 143MW Californian project

Environmental Audit Committee urges government to ensure £250m support package is not handed to firms already enjoying windfall profits from carbon trading

Bloomberg data confirms global carbon market activity grew 26 per cent last year, but concerns remain over low prices

Supporters hope state-wide cap-and-trade scheme could provide a model for the rest of the country

Sage of Omaha agrees to pay between $2bn and $2.5bn for SunPower’s 579MW Antelope Valley projects