Connect with us

Hi, what are you looking for?



Imergy Power Systems Introduces Grid-Scale ESP250 Series Flow Batteries

A new ESP250 series of vanadium flow batteries has been introduced by advanced storage systems leader Imergy Power Systems. Its output capacity is 250 kilowatts (kW), with 1 megawatt-hour (MW) of energy storage capacity. Multiple batteries can be linked together to create one energy storage platform. When they are linked together, this platform can provide megawatts of power and megawatt-hours of energy. The ESP250 modules are about the size of two shipping containers. Energy output duration is up to 8 hours. You can read more details if you like on the ESP250 data sheet.


“With the introduction of the ESP250, Imergy has broadened its product portfolio to include a product for every major energy storage market segment and application. From demand response for individual buildings, to frequency regulation for the grid, Imergy has a product designed to meet the market’s growing demand for low-cost, high-performance energy storage,” explained Bill Watkins, CEO of Imergy Power Systems.

Both industrial and commercial customers can use these flow batteries for large-scale energy applications. Microgrid implementation, peaker plant replacement, transmission and distribution investment deferral, backup power system delivery, and renewables management are possible with these new batteries. So are peak shaving and frequency regulation.

In fact, Imergy is already collaborating on a California college campus microgrid project not far from the company’s Fremont headquarters, and it could become the blueprint for a number of other college microgrids.

Like other Imergy flow batteries, they also use vanadium from fly ash and mining slag. In other words, it is recycled material. The liquid electrolyte doesn’t degrade over time, so Imergy’s flow batteries could be used for 20 years or more. The components of an Imergy flow battery are non-toxic and non-flammable. This is obviously different from lithium batteries, which have shorter lifespans and can explode.

CleanTechnica has steadily reported about Imergy for some time because the company keeps finding ways to succeed. I imagine we’ll have another Imergy story up before too long.

Related: 42 Battery Storage Companies To Watch

Appreciate CleanTechnica’s originality and cleantech news coverage? Consider becoming a CleanTechnica Member, Supporter, Technician, or Ambassador — or a patron on Patreon.

Don't want to miss a cleantech story? Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!

Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.
Written By

Hello, I have been writing online for some time, and enjoy the outdoors. If you like, you can follow me on Twitter:


You May Also Like


The US Army is testing a new flow battery that can suck up wind and solar energy like a high tech vacuum.


nanoFlowcell established a US division this week to introduce its flow battery technology to America, starting with flow cell cars.


A California utility will use iron flow batteries from ESS for long term energy storage of up to 12 hours of duration.

Copyright © 2023 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.