SolarCity Selects Battery System for Kauaʻi Co-op Solar Storage Project

SolarCity chooses Tesla's new line of home energy storage devices
The new line of home energy storage devices from Tesla

has selected Energy to supply the batteries for a first-of-its-kind solar array and system to be built for Kaua’i Island Utility Cooperative (KIUC).

SolarCity made the selection after conducting a comprehensive competitive solicitation in the battery marketplace. The proposed SolarCity/Tesla project is believed to be the first utility-scale system in the U.S. to provide dispatchable solar energy, meaning that the utility can count on electricity being available when it’s needed, even hours after the sun goes down.

The 52 MWh Tesla Powerpack lithium-ion battery storage system will feed up to 13 megawatts of electricity onto the grid to “shave” the amount of conventional power generation needed to meet peak demand in the evening from 5 p.m. to 10 p.m.

By using the solar energy stored in the battery instead of diesel generators, KIUC will reduce its use of imported fossil fuels and also cut its greenhouse gas emissions.

Under the terms of the 20-year contract announced in September 2015, KIUC will pay SolarCity 14.5 cents per kilowatt hour, only slightly more than the cost of energy from KIUC’s two existing 12 megawatt solar arrays, whose output is available only during the day.

The array and battery storage facility will be built on 50 acres of land owned by Grove Farm Company, Inc. adjacent to KIUC’s Kapaia power station off M?’alo Road, just north of L?hu’e.

The project has already received most of its required state and county approvals and is now awaiting approval by the Hawai’i Public Utilities Commission. KIUC and SolarCity have requested an accelerated timetable for review of the project so that construction work can begin by April with a goal of being in commercial operation by the end of 2016.

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  • Santhosh vergheese says:

    Looking for solar qualitative solar products

  • Darin Selby says:

    Not with non-sustainable toxic Lithium I’m not. Have you guys forgotten your reports on BENIGN sodium-ion batteries, then you report on calcium-ion batteries, and now back to this? Do you have a focus at all to your posts? A direction towards a GOAL, or just mindlessly reporting on everything that comes to you? It seems that sustainability and the enironmental impact would be key to your promotional posts? Elon Musk is all geared up with his bullshit giga-factory to crank ENDLESS amounts of Li-ion CRAPOLA batteries, that are completely toxic, environmentally unsound, and EXPLOSIVE! All he is after with this over-priced YUPPIE battery is making bank, not solving the sustainbility crisis.

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