Category: Research
UK Trying to Advance Hydrogen Aviation. Likelihood by 2050 is still under 1%
The UK Civil Aviation Authority announced its latest Hydrogen Challenge in the same week as I published my updated assessment of hydrogen passenger aviation. The regulator is examining hydrogen-aircraft turnarounds at London City Airport, cryogenic hydrogen storage and airside supply, while its broader hydrogen aviation roadmap targets scaled operations for … [continued]
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More Than 56% of California Electricity Demand Supplied by Wind, Water, & Solar in 2026
California keeps installing more and more renewable energy power plants and rooftop solar systems. Therefore, it keeps using more and more renewable energy. Stanford professor Mark Z. Jacobson, Director of the Atmosphere/Energy Program in the Department of Civil and Environmental Engineering, has long gone with the “WWS” (Wind, Water, Solar) … [continued]
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Dense-Fluid Pumped Hydro Works. Scaling It Is The Problem.
RheEnergise deserves credit for something a lot of energy-storage startups never accomplish: it built the thing. At Cornwood in Devon, the company constructed upper and lower reservoirs, installed pumps, pipes and generating equipment, manufactured hundreds of cubic metres of its proprietary high-density fluid, pumped that fluid uphill and ran it … [continued]
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Aberdeen Paid £556k Per Hydrogen Bus. Five Years Later, First Bus Is Paying £30k
Aberdeen’s hydrogen double-deckers have finally produced a useful market price, and it is more revealing than another theoretical argument about fuel-cell efficiency, hydrogen costs or refuelling infrastructure. First Bus is set to buy 23 Wrightbus StreetDeck Hydroliners for £30,000 each. Aberdeen City Council originally spent about £13.9 million on the … [continued]
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Energy Vault Scaled Gravity Storage. The Battery Benchmark Is Brutal.
Energy Vault’s Rudong gravity-storage project is a particularly useful technology test because it removes many of the excuses that can surround a first-of-kind energy project. It was built in China, with deep domestic supply chains for concrete, steel, motors, power electronics and industrial construction. It had government support, grid coordination … [continued]
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