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 could do double duty as building materials and supercapacitors.
Big_Ryan/DigitalVision Vectors via Getty Images
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.
Those living off-grid may soon be thankful for the chill of the night sky.
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.
The pumped hydro expansion in the Snowy Mountains is expected to be the largest renewable energy project in Australia.
Everything you need to know about pumped hydro.
This is what a 5-megawatt, lithium-ion energy storage system looks like.
Pacific Northwest National Laboratory
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.
Grzejnik / shutterstock
Compressed air energy storage on an industrial scale could help boost renewables.
The shrinking supply of Colorado River water is evident at the Hoover Dam on the border of Arizona and Nevada.
AP Photo/Ross D. Franklin
Taking millions of gallons of water permanently out of the Colorado River amid a prolonged drought would surely start an interstate fight.
Block Island Wind, the first offshore wind energy project in the U.S., started operation in 2016.
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.
The coils winding facility building in France, where a global effort to build the ITER fusion energy reactor is underway.
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.
Grid-scale energy storage systems may make it easier to rely completely on renewable energy.
Saving power to use later lets consumers, businesses and utilities generate energy when it's cheap and deliver it when they need it most. There's not much of it today, but the industry is growing fast.
The proton battery, connected to a voltmeter.
A new rechargeable 'proton battery' - made chiefly from carbon and water - promises to outperform conventional lithium-ion batteries, while also being more environmentally friendly.
Solar and wind compete with coal power plants when it comes to energy storage systems.
AP Photo/Mel Evans
Energy storage, such as big batteries, on the power grid is generally seen as 'green' technology but the reality is more complicated, an analysis finds.
A solar and battery-powered microgrid got San Juan’s Children’s Hospital quickly back online after Hurricane Maria.
Yes, Puerto Rico and any other storm-vulnerable location could benefit from on-site solar and battery backup, but it's unrealistic to say these microgrids are enough to power the island.
The price of new-build renewable energy is expected to fall significantly relative to new-build coal energy in coming years.
AAP Image/Lucy Hughes Jones
The price of renewable energy will fall significantly relative to new-build coal in coming decades, making an all-renewable electricity system more desirable, both economically and environmentally.
Boron is often ignored, but it’s got a lot of important qualities.
Boron is the hidden ingredient in a lot of our technology. Get to know this plucky little element.
The UK is about to miss an opportunity if it tries to take on the giants of the lithium-ion battery industry.
The Maguga Dam in Swaziland. Many development challenges of dams are not as clear as critics suggest.
Dams are once again being recognised as important key contributors to a prosperous and sustainable future.