Net energy analysis provides a quantitative way to compare the amount of energy a technology produces over its lifetime with the energy required to build and maintain it.

Germany continues to surge ahead in the use of renewable energy with the latest statistics showing the amount used in gross domestic consumption is heading towards 30 per cent.

A student accommodation firm is to spend £21 million to install energy-saving lighting in 120 properties across the UK. Unite Students has teamed up with electronics company Philips, which will upgrade the lighting in 23 town and cities in the next two years.

The use of recycling in the manufacturing processes of materials such as iron, steel and aluminium has been “a main driver” of improvements in energy efficiency within the industry.

India has announced plans to build the world’s biggest solar-power generating facility on a salt-producing plain in Rajasthan, but experts say the massive project may still face ecological hurdles.

Smartphones and water are not normally best buddies – as anyone who has dropped their handset in the loo can attest – but that all may change soon thanks to some clever scientist

Brussels has proposed that European countries should increase their overall energy efficiency by 30% by 2013.

The Energy Department announced up to $6 million in funding to deploy and demonstrate four emerging energy-saving technologies in commercial buildings across the country.

Half the fun of a holiday is leaving behind the niggling worries that get in the way of everyday life, so the last thing you want to be thinking about as you sip cocktails from a sun lounger is whether or not you should have turned the heating off before you left home.

Naveen Rabelli's tuk-tuk broke down the first time he rolled it out of his garage. The electrical engineer didn't lose heart: now, he plans to drive his customized three-wheeler all the way to London.

Spinach gave Popeye super strength, but it also holds the promise of a different power for a group of scientists: the ability to convert sunlight into a clean, efficient alternative fuel.

British Gas’s smart meters comprise one electricity meter, one gas smart meter, a communications hub and a smart energy monitor. They all work together wirelessly to relay your energy usage back and present that information in an easy-to-understand package. British Gas will even set it all up for you.