BBC Verify has been assessing if any of the pledges to cut energy bills made in the Holyrood election campaign can actually be delivered.
One revolution will generate enough electricity to charge 1,700 mobile phones, says a power company.
The war in the Middle East has brought renewed attention to Britain's vulnerability to energy price shocks.
People have contacted BBC Your Voice about plans for onshore wind farms across Wales.
The question of how important making our electricity clean is to going green is coming under increasing scrutiny
Moerdijk has been earmarked for removal, to make way for a vast electricity substation.
A community council opposes the bid in Galloway on the site of a wider energy park proposal.
The largest wind farm in England could be built on the moors that inspired the Bronte sisters.
Calderdale Energy Park hopes to build 34 turbines on moorland between Hebden Bridge and Haworth.