Mitsubishi battery spinoff contracted for 328 MWh storage system in Idaho

The Prevalon Energy Storage Platform (Credit: Prevalon Energy)

Prevalon Energy, a Mitsubishi Power Americas company, announced it has contracted with Idaho Power for a complete Battery Energy Storage System (BESS) and a long-term service agreement.

The project is meant to provide grid resiliency as a net peak solution, helping the utility to provide power during peak demand periods. The service agreement includes maintenance as well as remote monitoring.

The four-hour battery storage project with up to 328 MWh from Prevalon will align with Idaho Power’s plan to integrate more than 5,000 MW of energy from wind and solar projects over the next 20 years. The BESS will allow energy produced by those intermittent sources to be stored for future dispatch, Prevalon Energy said.

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The company’s “Prevalon Battery Energy Storage Platform,” a complete AC solution including the battery enclosures, inverters, medium voltage transformers, and EMS (Energy Management System), will be the cornerstone of the utility’s battery storage project. The project is expected to be fully operational in 2025.

“This order is a testament to the hard work of a very talented team that has positioned Prevalon as a skilled and established business partner for our customers with deep project experience in the fast-moving and growing development of battery energy storage,” said Prevalon President and CEO Tom Cornell. “We place high value on the partnering mindset and are looking forward to working closely with Idaho Power as they incorporate our end-end integrated battery energy storage solution into their long-range plans to ensure a stable and reliable energy grid for their customers.”

In February, Mitsubishi Power announced it was rebranding its BESS business into a standalone and legally separated company, Prevalon. Prevalon brings experience from the BESS business at Mitsubishi Power – over 30 projects, and three gigawatt hours (GWh) of utility-scale battery energy storage systems (BESS) deployed globally. Mitsubishi Power says Prevalon will operate “with the agility of a startup.”