Ameresco, United Power announce battery energy storage contract

Published on July 12, 2023 by Liz Carey

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Framingham, Mass.-based Ameresco, Inc. announced Monday it had entered into a contract with United Power for a battery energy storage asset partnership.

The 20-year agreement covers a multiple site battery storage system of more than 78MW, the largest wholly-owned asset contract in the company’s history. The agreement will give United Power the ability to balance its load effectively while integrating renewable resources into its operations.

“The use of batteries on our distribution network is essential to a resilient and responsive power system, and we are excited to be moving ahead with one of the most aggressive plans for such a system,” United Power President and CEO Mark A. Gabriel said. “These battery arrays will allow us to balance our power needs throughout the day and incorporate local renewables more efficiently.”

According to the companies, Ameresco will provide four 11.75 MW and four 7.84 MW battery arrays across eight different substation sites owned by United Power in Adams, Broomfield and Weld counties. The batteries will allow United Power to store and dispatch power during high consumption periods, optimizing their resources, enhancing grid resilience and ensuring reliable electricity supply.

“We are thrilled to partner with United Power on this transformational battery storage project,” said Jon Mancini, Ameresco senior vice president of Solar Project Development. “The inclusion of this expansive asset in Ameresco’s portfolio further underscores the global need for energy storage to bolster clean and sustainable power sources. Energy storage plays a crucial role in enhancing grid reliability, optimizing renewable energy utilization, and fostering a resilient and efficient energy future.”

The assets are scheduled to be placed in service in 2024.