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March 30, 2023

Framingham firm to use Australian battery technology on energy storage projects

A large windowed building sits behind two grass plots with pink, red, and white flowers in the foreground Photo | Courtesy of Kelleher & Sadowsky Associates, Inc. Headquarters of renewable energy firm Ameresco at 111 Speen St. in Framingham

Ameresco, Inc. has entered into a strategic relationship with Australian clean energy storage company Redflow. The clean and renewable technology companies reached an agreement where Redflow will supply the Framingham company with advanced non-lithium battery energy storage technology so Ameresco can install and use the storage devices for its projects.   

Ameresco will use Redflow’s non-zinc-bromine flow batteries as part of a flexible and modular integrated solar and storage product, which is being designed to meet the increasing need in the market.

“It is an honor for Redflow to partner with Ameresco as they look beyond conventional lithium technologies,” Tim Harris, Redflow CEO and managing director, said in a Tuesday press release. “Our zinc-bromine flow battery offers a non-lithium solution that is fire-safe, has an innovative hibernation feature, and suits a wide range of environments and use cases.”

Redflow and Ameresco are working to deploy a commercial demonstration system to use Redflow’s 40-killowatthour, four-battery enclosure with one of Ameresco’s existing customers. Redflow’s four-battery enclosure is a compact and scalable energy storage system for smaller commercial and industrial customers.

“We’re excited to partner with Redflow and leverage their commercial track record to globally deploy non-lithium energy storage systems,” Doran Hole, executive vice president and CFO of Ameresco, said in a press release. “This aligns with our relentless pursuit of best-fit solutions for our customers, both in project design and technology fit. The demand for longer-duration energy storage is a critical and rapidly growing market opportunity that can unlock our customers’ ability to cost-effectively meet an increasing amount of their energy needs through renewable sources.”

Redflow’s storage systems are fire-safe and a sustainable product and competitive with lithium-ion batteries, according to the press release. The batteries are made from more widely available raw materials than lithium-ion batteries, which should require fewer issues with the global supply chain. 

Redflow has offices in Australia and the United States. The company designs and manufactures long-duration zinc-bromine flow batteries for stationary commercial, industrial, and utility applications. Redflow’s energy storage products have been used at more than 250 sites in nine countries.

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