The Nuclear Regulator Commission is set to approve NuScale modular nuclear reactor for use. The NuScale reactor is small enough to be manufactured and shipped to its site of use, uses external water supplies for cooling and features an operator free shut down procedure using gravity if a problem occurs.
Popsci posted an interesting piece about why you shouldn't throw away those little silica gel packs because they are harmful to the environment. The article lists some ways you can reuse them to keep things like electronics and documents free of moisture.
Spanish scientist José Antonio G. I. developed a prototype system to extract hydrogen from tap water without electrolysis. Pressurized air injected into a tank of water, ferrosilicon, and sodium hydroxide causes a chemical reaction to extract the hydrogen through two additional tanks that can produce 30 litres of hydrogen per minute. Allowing hydrogen to be generated at the point of consumption removes the need for hydrogen transportation.
Researchers at ETH Zurich have built and testing a solar jet fuel generator. The solar tower uses solar power, water and CO2 from the atmosphere to generate a carbon-neutral jet fuel mix that can be converted into ynthetic fuels.
Students at Eindhoven University of Technology have built a carbon net-zero electric car prototype which includes a CO2 scrubber in the front grill. Built from sustainable, recycled and/or reusable materials and components, with solar cells to extend range, the electric car can also scrub 2kg of CO2 for every 20,600km driven.
WIRED published an interesting article looking at the advantages of car-free cities for people's health and the environment. The piece touches on how the interwoven nature of identity and car ownerships puts people off car-free cities, until they are experienced.
Researchers in Finland have commercialised sand battery technology that can store heat energy from excess generation. The excess electricity is used to heat air, and energy is then transferred from the air to the sand using a heat exchanger. The sand battery has been deployed in the town of Kankaanpää in western Finland and is used to power the central heating system for the district.