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SustainX Begins Operating World’s First Grid-Scale Isothermal Compressed Air Energy Storage System

Date: 09/11/2013

Company: SustainX

Source: MarketWire

Multi-Year Development Culminates in Grid Connection and Startup of Breakthrough Bulk Energy Storage Technology


SEABROOK, NH, Sep 11, 2013 (Marketwired via COMTEX) — SustainX, Inc., a leader in utility-grade bulk energy storage technology, has completed construction and begun operating the world’s first megawatt-scale isothermal compressed air energy storage (ICAES(TM)) system. SustainX’s ICAES system, which represents years of development and many patented innovations, stores and returns megawatts of electricity to provide long-term grid stability and support integration of renewable energy sources like wind and solar.

The 1.5-megawatt ICAES system is operating at SustainX headquarters in Seabrook, New Hampshire. It takes electricity from the grid and uses it to drive a motor that compresses air and stores it isothermally, or at near-constant temperature. To do so it captures the heat produced during compression, traps it in water, and stores the warmed air-water mixture in pipes. When electricity is needed back on the grid, the process reverses and the air expands, driving a generator. No fossil fuel is needed to reheat the air and no emissions are produced, making ICAES a safe and sustainable energy storage solution.

“Our isothermal CAES technology is a dramatic improvement over other bulk energy storage methods because it uses no fuel, produces no emissions, is power- and energy scalable, and can be sited virtually anywhere,” said Tom Zarrella, SustainX president and CEO. “Thanks to numerous innovations on core system elements, SustainX has developed, proven, patented and now built the key enabling technologies for isothermal CAES. We believe this places our company at the forefront of large-scale energy storage system development and commercialization.”

Read full story at MarketWire

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