Developers Aqualia says algae-based technology could enable Spain to 'power 200,000 vehicles through a single toilet flush'

Downing Street confirms Prime Minister meant communities will receive £100,000 per drill site as he talked up shale gas potential

Test drilling finds undersea site could hold 200 million tonnes of CO2 from a cluster of Humberside industries

Government says details will help investment community 'get on and invest' in low-carbon energy projects

New Archimedes Screw set to generate £18,000 in annual benefits for historic estate

Technology can save some homeowners up to £3,000 a year and pay for itself inside a decade, report finds

Sales of electric vehicles on track to smash last year's record as new models start to drive demand

Report calls for subsidy mechanism covering projects between 10MW and 50MW to help schools and small businesses benefit from green energy

Sustainable business chief Mike Barry details what's next for M&S and Plan A in part two of our in-depth feature

Green energy company and Nissan have now fitted 16 fast-charging units at Welcome Break motorway service stations across the UK