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PGE Announces Addition of 475 MW of Battery Energy Storage Systems to Improve Grid Reliability and Costs

LCG, August 7, 2025--Portland General Electric (PGE) today announced the completion of three, four-hour lithium-ion utility-scale battery energy storage systems (BESS) in Oregon, adding 475 MW and more than 1.9 GWh of dispatchable capacity to serve the Portland metro area. Each of these BESS facilities can deliver power during peak demand or when other electric generating facilities are limited, which improves system flexibility, reliability and costs.

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Consumers Energy Awards Energy Vault Two Battery Energy Storage Projects in Michigan

LCG, August 5, 2025--Energy Vault today announced an agreement with Consumers Energy to provide two battery energy storage systems (BESS) totaling 75 MW/300 MWh in Michigan. The BESS projects will be located in Iosco and Bay Counties, and construction is expected to begin in the first quarter of 2026. Commercial operations are expected to commence by the fourth quarter of 2026.

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Industry News

Consumers Energy Awards Energy Vault Two Battery Energy Storage Projects in Michigan

LCG, August 5, 2025--Energy Vault today announced an agreement with Consumers Energy to provide two battery energy storage systems (BESS) totaling 75 MW/300 MWh in Michigan. The BESS projects will be located in Iosco and Bay Counties, and construction is expected to begin in the first quarter of 2026. Commercial operations are expected to commence by the fourth quarter of 2026.

Consumers Energy’s President of Electric Supply stated, "Battery storage will continue to play a larger role as Consumers Energy meets Michigan’s growing energy needs. We’re excited to collaborate with Energy Vault to bring these two projects to life in the communities we serve."

The 45 MW/180 MWh Weadock BESS will be located at the site of the now-retired John C. Weadock Power Plant in Hampton Township. The 30 MW/120 MWh Iosco County BESS will be located in Oscoda Township. Local permitting efforts are underway in coordination with township officials to support project development.

The two projects will be charged and discharged on a daily basis and designed to dispatch stored renewable energy at peak consumption hours to help meet Michigan’s energy demand.

The BESS deployments will be developed under Energy Vault’s B-VAULT™ suite of fully integrated battery energy storage solutions and will leverage Energy Vault’s proprietary X-Vault integration platform and Vault-OS Energy Management System to control, manage and optimize the BESS operations. Energy Vault states that their innovative system architecture provides customer optionality with both battery and inverter suppliers, while unique AC-coupled and DC-coupled configurations provide the drop-in flexibility needed for any project.

Energy Vault's Chief Revenue Officer stated, "As the energy transition accelerates, utilities like Consumers Energy are stepping up to ensure grid reliability while integrating more renewable energy. We are proud to partner with Michigan’s largest energy provider on these critical projects, which will not only help meet peak demand with energy but also exemplify how advanced storage technologies can support grid resilience at scale. This contract marks Energy Vault’s continued expansion across the US with a leading Midwest utility partner committed to delivering sustainable energy at scale—and it lays the foundation for a long-term strategic partnership focused on enabling a more resilient and sustainable energy future for Michigan and beyond."
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