By ESS news
After a lucrative 2025, New York-based flywheel energy storage systems (FESS) startup Qnetic is equipping a factory in Sacramento, California, where it will begin producing its Q500 solid-state mechanical battery in small volumes.
The Q500 is Qnetic’s alpha prototype, CEO Michael Pratt confirms ESS news. “The base specification of the Q500 is 500 kWh, 125 kW, four hours of discharge at maximum power and up to 12 hours of discharge at lower power. The first prototypes will be reduced from 500 kWh to 100-200 kWh as we collect qualification data to increase rotor speed and therefore capacity,” said Pratt.
According to the company, the design differentiates the battery from the standard short-duration FESS and makes it more network-friendly.
“Traditional FESS are built for high power, short duration and low energy capacity,” the website says. “Qnetic is the opposite: long duration, high energy capacity and moderate power.”
Pratt added that Qnetic is also developing another, more advanced system. “The product roadmap moves from the Q500 – our launch product that is being built now – to the first quarter (or other variant) in due course,” he said. “The Q1 will be an evolution of the Q500, with similar architectures, so the technologies we patented exist in both,” he explained.
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