As effective as solar panels are, one of their major downsides is that they only produce power during the day, so excess energy needs to be stored for use overnight. But now, engineers from the University of California, Los Angeles (UCLA) have developed a prototype device that works almost the opposite way, harvesting energy from the cold night sky to passively power an LED.

A British energy firm lighting up homes in Africa with pay-as-you-go solar power has secured £40m to extend its reach to Asia with the help of Japan’s Mitsubishi.

In its latest “energy outlook” report, Bloomberg New Energy Finance says wind and solar photovoltaics (PV) will supply almost 50% of global electricity by 2050. Wind, it projects, will produce 26% and solar 22%, with renewables overall supplying 62% of the total. That’s despite electricity demand by 2050 increasing 62%, resulting in global generating capacity almost tripling. Nuclear will then be at 7% and fossil at 31%, according to this outlook, so renewables will clearly have won — although emissions from the fossil sector will still rise.

Following the advent of the industrial revolution, fossil fuels have been massively exploited and as a result, they are beginning to dry up.

Acid mine water, and also seawater and brackish water, are being eyed for hydrogen production by innovative South African company Hydrox Holdings, which has patented a water electrolysis method that is attracting world attention.

Australian energy technology company Power Ledger and Japanese Kansai Electric Power Co. (KEPCO) have completed a joint trial of a blockchain-based system for post-FIT (feed-in tariff) surplus power in Osaka.

The Rutgers University-led discovery, published in the journal Proceedings of the National Academy of Sciences, could help lead to more efficient and affordable algae-based biofuels and combat climate change from fossil fuel burning.

Saudi Arabia’s 400MW Dumat Al Jandal onshore wind farm has announced what it says is a world record-low onshore wind levellised cost of electricity (LCOE) of 1.99 US cents per kilowatt-hour (kWh).

Researchers from Stanford University in California have developed an affordable, durable technology that could harness energy generated from mixing freshwater from seawater.

Rust can generate electricity when salt water flows over thin films of it, exciting new research has revealed, a result which holds potential for inventive new forms of sustainable power production.

Tesla on Monday announced its largest battery product. Called Megapack, it's designed to simplify the installation process for large energy-storage projects.

Research from Swansea University has found how plastics commonly found in food packaging can be recycled to create new materials like wires for electricity -- and could help to reduce the amount of plastic waste in the future.