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

Green Car Congress

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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US and Japan collaborating on smart grid project in Hawaii; EV operation and charging, including grid-balancing services

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The project is supported by Japan’s New Energy and Industrial Technology Development Organization (NEDO), in cooperation with the State of Hawaii, Hawaiian Electric Company, Inc., Part of the demonstration plan includes utilization of the EVs for grid-balancing services ( earlier post ).

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SwRI to demonstrate use of electric vehicles as part of emergency power microgrid under US Army SPIDERS program

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SPIDERS aims to create a resilient, more reliable microgrid designed to protect against extended power outages caused by natural disasters, accidents or attacks—and, ultimately, to enhance electric power surety for national security. Harbor/Hickam, Hawaii; Fort. independent from the bulk power grid (i.e.,

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Burns & McDonnell develops bi-directional fast chargers for SPIDERS program

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A team of Burns & McDonnell engineers, along with subcontractor Coritech Services, has developed a system of bidirectional, fast-charging stations for a fleet of plug-in electric vehicles at Fort Carson, Colo. The Smart Power Infrastructure Demonstration for Energy Reliability and Security ( SPIDERS ) is three?phase Click to enlarge.

Grid 218
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US DOE Awards More than $47M in Recovery Act Funding to Advance Smart Grid Development; New Smart Grid Report and Smart Grid Clearinghouse

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However, technical challenges with regard to battery performance due to charge and discharge cycles need further investigation and remediation.” Smart Grid System Report Annex A. Recovery Act Awards for Smart Grid Demonstration Projects. Zenergy Power Inc. University of Hawaii at Manoa-Hawaii Natural Energy Institute.

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REV delivers 1st of 4 battery-electric vehicles with V2G capability to TARDEC

Green Car Congress

has delivered the first of what it calls “Ancillary Power Vehicles” (APVs)—batter-electric vehicles with a vehicle-to-grid (V2G) capability—to the US Army Tank Automotive Research Center (TARDEC) in Hawaii this week in partnership with Honeywell Aerospace. Canada-based Rapid Electric Vehicles, Inc.,

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How Carmakers Are Responding to the Plug-In Hybrid Opportunity

Tony Karrer Delicious EVdriven

The utility.will get a Ford plug-in hybrid vehicle by the end of this year and as many as 20 by some time in 2009 to test their durability, range and impact on the power grid, said Susan M. Lutz said lithium-ion batteries must be improved to hold a bigger charge and deliver the charge gradually. Detroit Free Press ).

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