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Largest battery storage project opened in North America

CleanTechnica

The Tehachapi Energy Storage Project — the biggest battery energy storage project to date in North America — has now opened.

The 32MWh battery energy storage system built by Southern California Edison (SCE) comprises lithium-ion batteries from LG Chem stationed in a special 6,300 square-foot facility at SCE’s Monolith substation in Tehachapi, California.

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Image Credit: SCE

The project was built in that location owing to its proximity to the Tehachapi Wind Resource Area — which is expected to produce up to 4,500 MW of power from wind energy infrastructure in the area by the year 2016.

The project was funded with a combination of the SCE’s own funds and federal stimulus money obtained from the Department of Energy via the American Recovery and Reinvestment Act of 2009.

Explaining the purpose of the project, the DOE’s energy storage program manager, Dr Imre Gyuk, stated: “This installation will allow us to take a serious look at the technological capabilities of energy storage on the electric grid. It will also help us to gain a better understanding of the value and benefit of battery energy storage.”

The press release provides more:

The project costs about $50 million with matching funds from SCE and the DOE. Over a two-year period, the project will demonstrate the performance of the lithium-ion batteries in actual system conditions and the capability to automate the operations of the battery energy storage system and integrate its use into the utility grid.

Primary goals of the project are to demonstrate the effectiveness of lithium-ion battery and smart inverter technologies for improved grid performance and to assist in the integration of variable renewable energy resources like wind and solar power.

The battery system supplied by LG Chem is comprised of 604 battery racks, 10,872 battery modules and 608,832 individual battery cells – the same lithium-ion cells installed in battery packs for General Motors’ Chevrolet Volt.

Over the next few years, if the project proves a success, we can hopefully expect to see a larger rollout of battery storage technology solutions on the grid-scale level.

Source: CleanTechnica. Reproduced with permission.

Comments

2 responses to “Largest battery storage project opened in North America”

  1. Gerry Avatar
    Gerry

    Hmmm… at 32MWh for $50 million USD this ends up being $1,562 USD per kWh installed. I wonder how far that cost can come down, since the rumoured price of Tesla’s 85 kWh pack is around $22,000 which equates to around $260 USD per kWh. This isn’t an apples-to-apples comparison but it shows that either the cost of the various power electronics and additional control systems in the facility are a key driver to their ultimate capital costs and/or that they’re sourcing batteries at a price point that is way higher than Tesla. If the latter is the more predominant reason for the significant cost of the facility, then it’s likely that a similar storage solution could be commissioned for significantly less outlay if they align the correct suppliers.

    1. Miles Harding Avatar
      Miles Harding

      Given the prototype nature of this installation, the building and likely big inverters (50MW+?), it sounds reasonable.

      Tesla is certainly a place to watch. In addition to making car batteries, they are also starting to make storage batteries that are modular and install on outdoor pads.

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