Eos Energy Storage is developing a zinc air battery it claims will be able to clear up bottlenecks on the power grid by placing them at office buildings and shopping malls.
Although it doesn't have a product on the market yet, Eos Energy Storage said its grid storage battery will be far cheaper than other technologies, such as lithium ion or sodium sulfur batteries now used for grid storage. Its target price is $1,000 per kilowatt and $160 per kilowatt hour. Over the batteries' lifetime, that would make it comparable to the cost of pumped hydro plants or natural-gas turbines, according to the company.
By tackling one of the most vexing problems with zinc air batteries--their ability to recharge effectively--the company projects it can build a battery that will last 30 years.
Energy project developers could install them next to power generation stations or at the edge of the grid network where there's a lot of congestion. The batteries will provide back up and allow companies, such as data center operators, to charge the batteries at off-peak times and draw on them during peak times to save money, Hellman said.
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