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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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Wind-to-Hydrogen Tech Goes to Sea

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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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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.

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Audi opens 1.9 MWh battery storage unit on EUREF Campus in Berlin

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Audi has opened Germany’s largest multi-use battery energy storage unit on the EUREF Campus in Berlin. acre EUREF campus serves as a site for pilot projects for the transition to sustainable energy and networked mobility. The Audi storage unit has a capacity of 1.9 The Audi storage unit has a capacity of 1.9

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The Net-Zero Neighborhood: Advanced Energy Storage and Highly Efficient Photovoltaics Take Transportation Off the Gasoline Grid and Residential Off the Electric Grid

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The NZN concept relies on high energy density storage systems incorporated into the local grid, as well as efficient photovoltaic generation. NZN can integrate with the centralized grid. batteries); the creation of grid-enabled consumer-side energy generation appliances; and a robust set of standards and protocols.

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NREL researchers point toward building energy efficiency instead of long-term storage

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An open-access paper on the work, “Optimal Strategies for a Cost-Effective and Reliable 100% Renewable Electrical Grid,” appears in the Journal of Renewable and Sustainable Energy. The researchers considered solar and wind as the source of renewable energy, given that most plans for meeting the 100% target take those into account.

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