Energy efficiency Features for December 2008

Energy efficiency Features Archive

Climate: urgent action required Climate: urgent action required

It's been another busy period for GWEC's Steve Sawyer, who has attended an eye-watering number of international events on the circuit. Here, he brings us up to date with a view from the front line of the climate change debate…

Renewables and carbon trading

Where next for renewable energies in the fast-developing world of carbon trading?

Focus on Anaerobic Digestion Focus on Anaerobic Digestion

Energy from Waste (EfW) is increasingly being seen as something of a silver bullet solution to enable less organic waste to be sent to landfill, as well as deliver cleaner energy. George Marsh looks at a technology that is revolutionising the possibilities for organic waste – Anaerobic Digestion

Case study: biogas harvest for US farm Case study: biogas harvest for US farm

Farmers around the world are showing increased interest in Anaerobic Digesters, as a result of higher energy and fertiliser prices, the growing costs of complying with waste disposal legislation in many countries and the continuing need to diversify in order to maintain farm incomes. One dairy farm in the USA is using the technology to produce electricity, heat and bedding for animals.

Making wind more efficient? Making wind more efficient?

With rising demand for wind power, wind turbine manufacturers are searching for solutions to make their turbines more efficient, at the same time increasing reliability and reducing maintenance. Renewable Energy Focus' Kari Larsen investigates two routes for achieving this: integrated drivetrains and direct drive technology.