Consumers and companies demanding full traceability in their financial dealings, as well as many of their consumer product purchases is nothing new. But it's still not common in the energy sector.  So typically, even if you are paying for green power, the actual electrons delivered into your home may still be from fossil fuel sources.Enosi are introducing full traceability for green electrons from source to socket, delivering consumer confidence the electrons they have purchased & are using are 100% green. Importantly, it can all apparently be done without energy intensive block-chain tech - just a smart meter and Powertracer software.

China has built what it says is the world’s most powerful hydrogen-powered locomotive, rolling stock that state media

Green Gravity Labs want to drop dense weights down mine shafts and harness the kinetic energy released to generate electricity. Once fallen the weights would be returned to elevation utilising renewable energy.https://www.abc.net.au/news/2023-05-21/old-mine-shafts-make-renewable-energy-green-gravity-port-kembla/102367724

A team of researchers at Macquarie University have discovered that the use of microwave radiation during the manufacturing of solar panels can reduce the amount of energy needed, as well as leaving the final product in a slightly better position for delamination and recycling at end-of-life.https://www.pv-magazine-australia.com/2023/04/17/microwave-technology-tipped-to-advance-solar-cell-production/

A significant part of the costs of popular  polymer electrolyte membrane (PEM) electrolysers is the cost of the rare metals required, such as iridium, platinum or gold.Korean researchers have discovered they can uniformly coat the electrode with iron oxide, which has low electrical conductivity, and then convert the iron oxide to iron nitride to increase its conductivity. Then they coat the iron oxide with a very thin layer of iridium, using about 10% of iridium currently used in PEM technology. This will significantly reduce the cost of the electrolyser, while apparently maintaining a similar performance.https://interestingengineering.com/innovation/boosting-green-hydrogen-korean-researc