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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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A plot of ESOI for 7 potential grid-scale energy storage technologies. Benson from Stanford University and Stanford’s Global Climate and Energy Project (GCEP) has quantified the energetic costs of 7 different grid-scale energy storage technologies over time. Credit: Barnhart and Benson, 2013.

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New lithium polysulfide flow battery for large-scale energy storage

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Researchers from the US Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University have designed a new lithium/polysulfide (Li/PS) semi-liquid (flow) battery for large-scale energy storage, with lithium polysulfide (Li 2 S 8 ) in ether solvent as a catholyte and metallic lithium as an anode.

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MIT researchers propose subsea version of pumped hydro for renewable energy storage

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Researchers at MIT are proposing using a variation on pumped hydroelectric systems for storage of electricity produced by offshore wind farms. The key to this Ocean Renewable Energy Storage (ORES) system is the placement of 30-meter-diameter hollow concrete spheres on the seafloor under the wind turbines. Slocum, A.H.;

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BMW i home energy storage system integrates 2nd-life i3 vehicle batteries

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BMW i announced a home stationary energy storage system solution integrating its BMW i3 vehicle battery at EVS 29 in Montréal. The concept announced at EVS29 is the first market-ready home storage system using a second-life automotive BMW i3 high-voltage battery integrated by BECK Automation (Würzburg, Germany).

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Heliostat Consortium announces 7 projects to receive combined $3.5M in funding; DOE launches Heliostat Prize

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Heliostats are mirrors that track the sun in order to reflect highly concentrated sunlight to a receiver, where it can be stored as heat for long-duration energy storage and converted into electricity. Low-cost heliostats offer significant renewable energy potential.

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5 Big Ideas for High-Temperature Superconductors

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But the materials could show up sooner in a wide array of practical applications, including wind power, energy storage, and nuclear magnetic-resonance machines. Once the coil is charged, the energy can be stored nearly indefinitely with little to no decay, provided that the cooling is maintained.

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Convert Oil Wells to Solve the Solar Storage Problem

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The California-based Hyperlight Energy will be piloting an installation where they plan to use existing oil wells as solar thermal wellsprings, with the stored energy being converted back to clean electricity when required. Tectonic Sun combines the Hylux CSP system with underground thermal storage. “So

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