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Wind-to-Hydrogen Tech Goes to Sea

Cars That Think

Wind and solar parks produce a large portion of their energy. Then, as now, wind farms are operating off the world’s coasts—but not all of these offshore sites are connected to the mainland via underwater power cables. Some of the wind farms instead sit in clusters more than 100 kilometers out at sea.

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Highview Power and Encore Renewable Energy to co-develop the first long-duration, liquid-air energy storage system in US

Green Car Congress

When electricity is in high demand and more valuable, the pressurized gas is allowed to warm, turning a turbine as it expands and thus generating energy that can be used at peak times when the sun is not shining and the wind is not blowing.

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New lithium polysulfide flow battery for large-scale energy storage

Green Car Congress

Stanford / SLAC’s new lithium-polysulfide flow battery design compared to conventional “redox” flow batteries. The new flow battery uses only one tank and pump and uses a simple coating instead of an expensive membrane to separate the anode and cathode. Credit: Greg Stewart/SLAC). Click to enlarge. 1 and 190 Wh L ?1

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Stanford study quantifies energetic costs of grid-scale energy storage over time; current batteries the worst performers; the need to improve cycle life by 3-10x

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Using a new metric—“Energy Stored on Invested, ESOI”—they concluded that batteries were the worst performers, while compressed air energy storage (CAES) performed the best, followed by pumped hydro storage (PHS). When demand is high, the water is released through turbines that generate electricity.

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New nanoparticle copper compound cathode could enable low-cost, long-life and high-power potassium-ion batteries for grid storage

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Yi Cui has developed nanoparticle copper hexacyanoferrate (CuHCF) battery cathode materials that demonstrate long cycle life and high power for use in grid storage applications. Short-term transients, including those related to wind and solar sources, present challenges to the electrical grid. A team at Stanford led by Prof.

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New tax rule could save consumers thousands on home energy tech

My Energi

Earlier this week (11 December), the government announced that VAT relief on Energy Saving Materials (ESMs) in residential buildings will be extended to include home batteries, power diverters and water-source heat pumps from 1 February 2024.

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Naval Research Lab uses liquid hydrogen to almost double endurance record for small electric UAV

Green Car Congress

Similarly, small, electric, battery-powered systems are limited to endurances of only several hours. An electrolyzer-based system would require only water for feedstock and electricity, possibly from solar or wind, to electrolyze, compress and refrigerate the fuel.

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