The cryogenic energy storage technology can support “intermittent renewable generation, energy arbitrage, peak shaving, ancillary services, transmission and distribution deferral, inertia services, reactive power, and voltage support,” said Cavada. Highview sees ERCOT as a promising market because it is “a big wind market-we can co-locate with wind resources to store power during off-peak hours,” said Javier Cavada, president and CEO of Highview Power, in a pv magazine interview. The firm adds that its technology permits “weeks’ worth of storage,” with the use of additional tanks. The storage startup has claimed that the levelized cost for its system is $140/MWh for a 200 MW/2 GWh (10-hour) system, with no use of waste heat or cold. Highview will co-develop the long-duration energy storage project with Encore Renewable Energy, a Vermont-based clean energy developer with a history of reclaiming real estate landfills, brownfields, rooftops and carports for community-scale solar PV and large-scale energy storage systems. Highview notes that its system can be configured to also use waste heat and cold. It’s intended to be sized at a minimum of 50 MW with more than eight hours of storage for in excess of 400 MWh.īalancing an intermittent renewables-dominated grid replete with duck curves and periods of under- and over-production is going to require a greater-duration storage method than the 4 hours that today’s lithium-ion batteries typically provide.Īs pv magazine’s Will Driscoll reported, Highview uses off-peak or excess electricity to chill and liquefy air at -320☏, storing the liquid air in insulated, low-pressure tanks, and then exposing the liquid air to ambient temperatures to rapidly re-gasify the air, expanding it to 700 times its liquid volume and powering turbines to generate electricity. London-based Highview Power uses liquid air to store energy for far longer than lithium-ion batteries and plans to develop the United States’ first long-duration, liquid-air energy storage system in northern Vermont.
0 Comments
Leave a Reply. |