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Hawaii study finds vehicle-to-grid discharge detrimental to EV batteries

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Results of a study by a team at the Hawaii Natural Energy Institute, SOEST, University of Hawaii at Manoa, suggest that the additional cycling to discharge vehicle batteries to the power grid in a vehicle-to-grid (V2G) scenario, even at constant power, is detrimental to EV battery cell performance.

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Mitsubishi Heavy to supply 500 kWh (normal) containerized Li-ion energy storage system to power grid of Orkney Islands

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(MHI), jointly with SSE plc (formerly Scottish and Southern Energy plc), will begin an energy storage system demonstration project using the power grid in the UK’s Orkney Islands, which has a high proportion of renewable energy generation in relation to demand.

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A123 Systems to supply 1MW Li-ion grid storage system to Maui Electric Company; 2MW system for NSTAR demonstration

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Li-ion battery maker A123 Systems will supply a Grid Battery System (GBS) to Maui Electric Company (MECO), a utility serving residents and businesses on the islands of Maui, Lanai and Molokai in Hawaii. The system, NSTAR’s first battery energy storage project, is proposed for installation at a substation in Medway, Mass.

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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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TenneT and Daimler testing use of automobile battery systems for grid stabilization and recovery

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Transmission system operator TenneT and Daimler AG, through its wholly owned subsidiary Mercedes-Benz Energy GmbH, have researched and tested the feasibility of innovative system services in the transmission grid as part of a joint development partnership. If this is not the case, frequency deviations can occur.

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Ultrathin transition metal silicate nanosheet cathode material for Li-ion batteries supports reversible two-lithium-ion capacity

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Charge and discharge profile of first and second cycles of Li 2 MnSiO 4 samples measured at 45 °C at 0.02C rate. Researchers from Tohoku University, Japan, have developed novel ultrathin Li 2 MnSiO 4 nanosheets for use as a cathode material in lithium-ion batteries. Credit: ACS, Rangappa et al. Click to enlarge.

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Renault makes public its lifecycle study of Fluence ICE vs Fluence EV

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is shown with both UK and French grid mixes. Renault recently made public the findings of an internal study, published first in October 2011, detailing and comparing the lifecycle assessments (LCAs) of the battery-electric and two internal combustion engined versions (gasoline and diesel) of the Renault Fluence. Click to enlarge.

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