Clean Energy

If all the major green ammonia projects on our shortlist are completed on schedule, their combined production total will be more than half of today's global ammonia industry by the mid-2030s – eliminating nearly 1% of global carbon dioxide emissions.

Denmark's Hyme Energy wants to save shut-down fossil-fuel heat and power plants by repurposing them as renewable energy storage and release facilities using technology borrowed from the advanced nuclear sector. Its first plant will be online by 2024.

Caltech's wildly ambitious space solar project, buoyed by a massive hundred-million-dollar donation, is preparing to launch its first prototypes into orbit. These cutting-edge ultralight structures will collect, convert and wirelessly send energy.

Irish company OceanEnergy has already tested its oscillating water column generators at significant scale in Hawaii, and it's just signed on to a four-year project to test, validate and commercialize its biggest unit yet off Orkney, in Scotland.

Aeromine says its unique "motionless" rooftop wind generators deliver up to 50% more energy than a solar array of the same price, while taking up just 10% of the roof space and operating more or less silently. In independent tests, they seem legit.

The UniWave sea platform is an artificial blowhole that harvests energy from ocean waves. Independent analysis now predicts it'll create some of the cheapest renewable energy on the market – and some of the most reliable and predictable, as well.

New Zealand company Emrod says it's got the technology to enable efficient wireless energy transfer from orbit. It's proposing a global wireless energy matrix, which would instantly beam renewable energy via satellite between any two points on Earth.

The German steel giant is investing $1.9 billion in a hydrogen-powered direct-reduction system that can create high-quality steel without needing the rare, high-grade iron ore required by most green steel processes. This could open the floodgates.

Australia has a lot of sun and desert space, positioning the country well to continue being an energy exporter in the net zero era. But the renewable assets it'll need to build to get there are absolutely epic in scale, according to a new report.

Australian researchers have demonstrated a way to electrolyze hydrogen straight out of the air, anywhere on Earth. The Direct Air Electrolyzer absorbs and converts atmospheric moisture – even down to a "bone-dry" 4% humidity – without fresh water.

Swedish company SeaTwirl says its floating vertical-axis wind turbines have what it takes to dramatically reduce the cost of deep offshore wind energy, and it's signed a deal with Westcon to build and deploy a commercial-scale 1-MW turbine in Norway.

It seems China's Chang'E-5 robotic Moon mission has discovered more than water on the lunar surface. Scientists have confirmed the discovery of a new mineral, a transparent crystal named Changesite-(Y), as well as a promising potential fusion fuel.