Primus Power launches new low cost, long-duration storage solution

LinkedIn
Twitter
Reddit
Facebook
Email

Primus Power’s long duration, fade-free flow battery EnergyPod2. Source: Primus Power Corporation
California-headquartered provider of low-cost, long-duration storage systems Primus Power has launched the EnergyPod 2, the second generation of its long-duration, fade-free flow battery.

Primus is shipping systems to US and international utilities, including Puget Sound Energy in Washington State.

This article requires Premium SubscriptionBasic (FREE) Subscription

Enjoy 12 months of exclusive analysis

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Annual digital subscription to the PV Tech Power journal
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

With a five-hour duration and 20-year life, EnergyPod 2 delivers a total cost of ownership up to 50% less than leading conventional lithium-ion battery systems, the company claims.

The solution is ideal for peak shaving for commercial and industrial (C&I) customers that typically face high electricity bills during peak periods. Long duration energy storage can shift loads from on-peak times to off-peak times, thereby significantly reducing demand charges.

The California Public Utility Commission wrote in a recent staff report that “more hours of peak shifting capability would be more effective in removing generated energy from the grid at peak supply times and injecting it into the grid at peak demand times.” This exemplifies the growing need for long-duration storage solutions.

Recent reforms to California’s Self Generation Incentive Programme (SGIP) benefitted long-duration technologies that previously missed out on the incentive, through the extended US$83 million a year awarded to behind-the-meter storage.

EnergyPod 2 also features a flow battery that lasts far longer than its lithium-ion counterparts, which is essential given that multiple hours of battery power are required to bridge power outages for industrial microgrids.

Furthermore, utilities can employ long-duration batteries instead of costly and dirty fossil fuel-based peak shaving systems. Such batteries can also contribute to cheaper system upgrades and offset the variable generation of solar PV. Modular battery systems, like EnergyPod 2, offer compelling economics compared to their fossil fuel-based alternatives for the purposes of substation upgrades.

Read Next

July 17, 2025
As the US looks to establish reliable battery supply chains, TerraFlow Energy and ESS Tech look beyond lithium-ion for long-duration energy storage solutions.
July 17, 2025
D.E. Shaw Renewable Investments (DESRI) has started construction at a 150MW solar-plus-storage project in the US state of New Mexico, the BESS for which will be manufactured in the US by LG Energy Solution.
July 17, 2025
Tom Sisto, CEO of US flow battery provider XL Batteries, writes that lithium-ion batteries’ dependence on a supply chain controlled almost completely by one country is a risk that could be avoided.
July 16, 2025
London Stock Exchange-listed Gore Street Energy Storage Fund (GSF) has entered into an agreement to sell its investment tax credits (ITCs) for the Big Rock energy storage project in California, US.
Premium
July 16, 2025
Peak Energy president and CCO Cameron Dales speaks with Energy-Storage.news about the state of the battery storage industry after the signing of the Budget Reconciliation Act into law.

Most Popular

Email Newsletter