Sodium-ion batteries hit the Midwestern grid in first-of-its-kind pilot

8 hours ago

First deployment of sodium-ion battery storage on the Midwestern grid by Peak Energy and RWE Americas.
Sodium-ion batteries offer inherent stability, no active cooling needed, and operate over a wide temperature range.
Peak Energy's system reduces lifetime cost of stored energy by $70 per kilowatt-hour, cutting total costs by half.
Savings achieved by eliminating cooling systems, reducing maintenance, and minimizing overbuilding for degradation.
RWE Americas to pilot the technology in Wisconsin to test grid performance.
Sodium-ion batteries could lower total storage system costs by over 25% compared to lithium-ion batteries.
Potential to reduce system costs by $27 billion with 10 GWh of battery storage in the MISO region over the next decade.
Successful pilot could lead to wider adoption of sodium-ion batteries for large-scale energy storage in the US.

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