Good Energy says it plans to challenge ASA ruling declaring that its arch rival supplies "Britain's greenest energy"
Queen Elizabeth Hospital in King's Lynn hosts wind turbine capable of delivering enough clean power for around 300 homes
More than 400 churches pledge to switch to renewable energy providers, diverting more than a million pounds a year to green energy specialists
Green energy provider says it will have offered every customer a smart meter by 2018, two years ahead of government deadline
Green energy specialist becomes latest utility to cut gas bills in the wake of falling wholesale prices
Green energy supplier surpasses "Big Six" with largest price cut so far
Ecotricity will build 100-metre wind turbine that will deliver more than half the RSPB's annual electricity needs
Green energy specialist says proposed anaerobic digestion plant near Winchester would inject £60m into local economy
OVO Energy tops latest Which? energy league table, followed by Good Energy and Ecotricity
Green energy company celebrates latest bond issue, as rival Good Energy extends partnership with National Trust