BrightNight, a leading renewable power company designed to provide utility and commercial and industrial customers with clean, dispatchable renewable power solutions, and Cordelio Power announced today the development of the Greenwater Battery Energy Storage System (BESS), a 200-megawatt (MW)/800-megawatt hour (MWh) standalone project set to be constructed on a commercial industrial site in Pierce County, Washington. This state-of-the-art facility will provide critical energy storage to the region, providing reliability for Puget Sound Energy (PSE) customers. The project's transmission infrastructure Conditional Use Permit was approved by the City of Sumner on August 26.

The Greenwater project is ideally located to serve the growing energy demands of the region while avoiding the costly and high-impact transmission infrastructure typically required to bring power from the eastern areas of the state. With a focus on meeting reliability and price security goals set by the Western Resource Adequacy Program (WRAP) in 2027, the Greenwater project will play a vital role in improving regional energy reliability and energy dispatch optimization across PSE territory, while supporting PSE's rigorous Clean Energy Transformation Act compliance.

BrightNight Chairman and CEO, Martin Hermann, said: "We are delighted to partner with Puget Sound Energy to bring our next-generation, AI-enhanced Battery Energy Storage System to the great state of Washington, delivering reliable and dispatchable power to one of the regions spearheading America's decarbonization and electrification efforts. The Greenwater project is a perfect example of how BrightNight's team of experts, along with our revolutionary AI-based platform, PowerAlpha®, enable us to develop best-in-class energy systems featuring outstanding efficiency and performance, while delivering maximized value for our customers."

Projects like Greenwater are critical in addressing the rapidly increasing electricity and capacity demands seen by many utilities in the Pacific Northwest. Greenwater has been a model of responsible development with low-impact siting and industry-leading coordination with the local fire department, which has included specialized training to ensure community safety.

Mayor Kathy Hayden of Sumner expressed her appreciation for BrightNight's community engagement efforts, stating, "There's no question that demand on our energy grid is increasing. The residents and businesses of Sumner, and our region, need reliable, predictable energy to power critical systems, whether that's heating your home or roasting big batches of coffee. We appreciate BrightNight's efforts to engage the community and address any concerns."

The Greenwater project has enjoyed broad community support due to BrightNight's strong commitment to community engagement and public education. It is one of BrightNight's 21 projects in the Pacific Northwest totaling more than 10 gigawatts of clean power, highlighting the company's position as a leading independent power producer dedicated to delivering power to a region at the forefront of the energy transition.

BrightNight led the development of the Greenwater project as part of its joint venture with Cordelio Power, and with support from AECOM. The project underscores BrightNight's mission to deliver safe, reliable, and sustainable energy solutions.

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