Fifteen years ago electric power generation was the largest source of US greenhouse gas emissions. Now the power sector is leading the shift to a clean energy economy.
Britain's electricity sector continues to decarbonise, but its capacity to store energy lags far behind.
The electricity sector is expected to play a key role in Canada's push to net-zero emissions. Enhancing long-distance transmission can be lower the cost of providing clean and reliable electricity.
A planned battery project in Essex will be ten times larger than the UK's current biggest battery.
While much of the world moves towards zero-carbon economies, a NSW mega-plan for new renewables may set up the state as an energy superpower.
Hydrogen is feted as the key to a dynamic green economy. But is it the best choice for decarbonisation in all cases?
Don't count nuclear energy out – it may be our best hope of reaching net-zero emissions within the time we have left.
Batteries power much of modern life, from electric and hybrid cars to computers, medical devices and cellphones. But unless they're made easier and cheaper to recycle, a battery waste crisis looms.
The blocks can be used to run steam turbines at power stations as a clean alternative to burning coal, and at a fraction of the price of storing energy in batteries.
Bricks turn out to be useful for storing electricity thanks to their porousness and red pigment.
Grid-scale batteries could be at least double the cost of those in electric vehicles.
Making ammonia produces almost 2% of global carbon dioxide emissions.
Don't expect the new technology to become solar's dark twin just yet, but it could play an important role in energy demands of the future.
Everything you need to know about pumped hydro.
Energy storage could prove an inexpensive way for power companies to handle heat waves and other times when consumers use more electricity than usual.
France, Germany and other European countries are increasing their use of renewable energy sources as well as storage solutions to help overcome their intermittent nature.
Compressed air energy storage on an industrial scale could help boost renewables.
Taking millions of gallons of water permanently out of the Colorado River amid a prolonged drought would surely start an interstate fight.
A recent survey of electric utility leaders finds that Trump administration efforts to promote coal energy and roll back air pollution regulations have had little impact on their long-range plans.
As fusion becomes more technically viable, it's time to assess whether it's worth the money because breakthroughs in the lab don’t guarantee success in the marketplace.