Renewable Energy

Scientists at Sandia National Laboratories have come up with a new design that addresses a number of shortcomings with current molten salt batteries, demonstrating one that can be constructed far more cheaply than currently available versions.

Looking to leverage all the motion in the ocean is UK startup Sustainable Marine, whose floating tidal turbine rotors just breezed through a testing regime that simulated 20 years of real-world conditions.

Many renewable energy technologies require metals that are mined through environmentally destructive processes. Now, Oxford scientists are investigating a new way to mine valuable metals trapped in hot brines beneath volcanoes.

Germany's Svevind has announced plans for a colossal green hydrogen project that will place some 45 gigawatts of wind and solar energy generation on the vast steppes of Kazakhstan to produce around three million tonnes of green hydrogen annually.

In many countries, long, dark winters limit the amount of solar energy that can be generated for much of the year. That's where the Underground Sun Conversion system comes in, as it's intended to use sunlight to help produce natural gas underground.

To maximize the exposure of wind turbines, blades are placed atop tall towers on the crests of hills or miles off shore. But a new study has shown how turbines behind hills could actually produce higher amounts of energy than those out in the open.

Norway's Wind Catching Systems has made a spectacular debut with a colossal floating wind turbine array it says can generate five times the annual energy of the world's biggest single turbines – while reducing costs to be immediately competitive.

With a view to one day developing transparent solar cells that can double as windows in homes and other buildings, an international team of scientists has demonstrated a new type of transparent electrode that can function as a key building block.

Scientists have discovered unexpected behavior in perovskite crystals that represents an entirely new state of matter, which they say can help drive the development of advanced solar cells and other optical and electronic devices.

GE is looking to unlock the potential of far offshore wind installations through the development of massive turbines that can operate in deeper waters, using advanced floating platforms to keep them steady as waves crash around them.

The US federal government has given the green light to the country's largest offshore wind farm to date, and one that will greatly expand its capacity to generate this form of renewable energy by adding 800-MW to the mix.

Perovskite solar cells can suffer from stability issues and quickly deteriorate during use, but scientists at Brown University have come up with a way of addressing this by targeting a weak point with something they call molecular glue.