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MITEI study finds hydrogen-generated electricity is a cost-competitive candidate for backing up wind and solar

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A team at MITEI (MIT Energy Initiative) has found that hydrogen-generated electricity can be a cost-competitive option for backing up wind and solar. Applying the model, they found that the average LCOE associated with meeting this seasonal imbalance is $2400/MWh using a HFGT fueled with green hydrogen and $3000/MWh using a LI.

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New cost forecast model finds 2020 cost/kW for PEM fuel cell stacks and Li-ion high-power batteries could be roughly equal

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Researchers at Daimler AG and a colleague at Albstadt-Sigmaringen University have developed a new cost forecast model for hydrogen fuel cell stacks and Li-ion batteries using a two-factor experience curve approach. The endogenous cost degression in the model is driven by output and patent publications. —Mayer et al.

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MHI delivers large-capacity Li-ion energy storage system for advanced microgrid study and verification testing at Shimizu Corp.

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MHI) has delivered a large-capacity Li-ion battery energy storage system to the Shimizu Institute of Technology in Tokyo. The energy storage system, which is capable of 100 kW output with 60 kWh capacity, is currently one of the largest indoor lithium-ion battery-based systems in Japan. Mitsubishi Heavy Industries, Ltd., (MHI)

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New long-duration, extended capacity Na-Al battery design for grid storage

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The new battery design could help ease integration of renewable energy into the electrical grid at lower cost, using Earth-abundant metals, according to a study just published in Energy Storage Materials. In comparison, the energy density for lithium-ion batteries used in commercial electronics and electric vehicles is around 170–250 Wh/kg.

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Stanford team develops sodium-ion battery with performance equivalent to Li-ion, but at much lower cost

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Stanford researchers have developed a sodium-ion battery (SIB) that can store the same amount of energy as a state-of-the-art lithium ion, at substantially lower cost. The researchers focused mainly on the favorable cost-performance comparisons between their sodium-ion battery and lithium. —Lee et al.

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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 new study by Charles J. As the percentage of electricity supply from wind and solar increases, grid operators will need to employ strategies and technologies, including energy storage, to balance supply with demand given the intermittency of the renewable supply. A plot of ESOI for 7 potential grid-scale energy storage technologies.

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New high energy, highly stable cathode for sodium-ion batteries

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F 0.7 , for sodium-ion (Na-ion) batteries (NIBs). This new material provides an energy density of 600 Wh kg –1 , the highest value among Na-ion cathodes. Large-scale energy storage systems are needed to deal with intermittent electricity production of solar and wind. The larger Na + ion as compared to the Li + ion (1.02

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