Wales

Councillors vote overwhelmingly against development of South Wales scheme, despite legal threats

Powered by the sun, this low cost three-bedroom house is the first in the country to produce and sell more energy than it uses

Mabey Bridge fails to agree sale of renewable energy arm despite 'exhaustive' attempts

German developers say £2bn Gwynt y Môr wind farm will produce enough electricity to power a third of Welsh homes

Partnership will provide clean power to 700 homes, saving 1,300 tonnes of CO2 each year

Developer names China Harbour Engineering Company Ltd as preferred bidder for marine works contract

Tidal Lagoon Swansea Bay expects government decision on future of £1bn project in the next fortnight

Underwater kites set to power 8,000 homes from 2019, after securing €13m in EU funding

UPDATED: European Commission also starts proceedings over poor waste water treatment in 17 areas

Crown Estate joins Welsh and Scottish governments to bolster progress in marine power industry