Micro-inverters improve efficiency, removing the need for a centralised inverter

Controversial Bioethanol firm outlines plans for a plant designed to turn citrus waste into biofuel

Federal Trade Commission receives letter from 10 US states calling for stricter rules for the burgeoning carbon offset industry

With $1.3m of fresh funding under its belt, Marquiss Wind Power is confident its rooftop turbines will offer firms a quicker return on investment than solar panels

Solar and automotive firms working together to deliver rooftop solar panels for cars

Traditional means of marketing by demographics simply will not work for green consumers, you need to be able to identify how they behave...

HP reports argue upgrading to more energy efficient kit could save Federal agencies $1bn over five years

The financial case for giving staff time off to undertake volunteer work may be tricky to measure but growing numbers of firms believe there is a strong case for corporate volunteering programmes

Using sea water to cool floating server farms promises energy savings of up to 40 per cent

But doubts over tax credit threaten to hamper progress in 2008