Batteries may have a big role in balancing future power grids, writes Sean Meyn, enabling more wind and solar generation. But until we go beyond 50% renewables, we don't need them. Instead we can adjust the demand of power hungry appliances to what's available every moment of the day.
Engineers in Norway aim to put their mighty hydroelectric dams to a new purpose, writes Paul Brown - as giant batteries to store up surplus power from wind and sun across Europe, and put it back in the grid when generation falls off or demand is strong.
Are you suffering from cognitive dissonance? You should be, writes Oliver Tickell. After the most ferocious attack a UK government has ever mounted on the environment, David Cameron just claimed that his is the 'greenest government ever', as Amber Rudd proclaims her commitment to climate action. What's going on?
Shale gas company Cuadrilla will appeal Lancashire's decision to refuse permission to frack, write Kyla Mandel & Ben Lucas. The planning battle will last well into 2016, as campaigners prepare to fight all the way.
The damage caused by fracking to people, communities and the wider environment will be put under the legal spotlight in public hearings in the US and the UK, write Damien Short & Tom Kerns. While the 'ruling' that emerges will be non-binding, it will provide an authoritative, expert dossier of fact and argument for real legal actions to follow.
Perplexed by today's sharp cuts in solar power and other attacks on renewable energy in the UK? Don't be, writes Oliver Tickell. Really, it all makes perfect sense. You just have to understand their real purpose: to keep your energy bills high, along with power company profits. And never mind the 'green crap'!
The UK government has announced massive cuts in support for solar roofs and farms that appear designed to undermine investor confidence just as the technology is on track to be subsidy-free by 2020.
The anti-fracking movement scored a great victory when Lancashire councillors refused planning permission for two fracking wells, writes Damien Short. But dig deeper and the triumph was all the greater, as it overcame not just Cuadrilla, but a morass of pro-fracking bias and legal and scientific misrepresentation from those meant to be providing impartial advice.
Coal companies and their 'sceptic' shills have almost given up on denying climate change, writes Brendan Montague. The new message is that coal is essential ... to end world poverty! And those who advocate climate action are 'harsh, cold-hearted' beasts. The one thing that hasn't changed? It's all lies.
The UK Government has ditched the requirement for new homes to be 'zero carbon' from April 2016, writes Gordon Walker. With builders already geared up to meet the challenge, this needless reversal will raise energy bills and carbon emissions for a century or more to come, and send out all the wrong signals for the Paris climate talks.
Energy secretary Amber Rudd promised 'a new solar revolution' for the UK, writes Kyla Mandel. But now the industry is braced for a massive round of cuts that could kill off the sector, just as it's on course to be the UK's first subsidy-free renewable power source in 2020.
Moving to 100% clean, renewable energy is a win-win option for South Australia, writes Mark Diesendorf. First of all it's highly doable over a 25-year transition period. It will also bring lower power prices, more employment, better health and a cleaner environment. What's not to like?
As nuclear projects using the EPR design run into long delays and huge costs overruns, industry hopes are pinned on the Westinghouse AP1000 reactor, writes Chris Goodall. But with eight AP1000 projects around the world going the way of the EPR, is it really a wise choice for the UK's Moorside nuclear site?
Breaking a clear pre-election promise, the government will allow fracking to take place in the UK's most precious wildlife sites and in vital groundwater source areas, writes Adam Vaughan.
Next month is the time for green activists to get together in the glorious Peak District, coordinate future actions on everything from fracking to road-building and climate change ... and of course, share the love, writes Indra donFrancesco, Yes, it's the Earth First! summer gathering, and there's never been stronger reasons to go.