Advanced Power Closes Sale of Rock Rose Energy Storage

Advanced Power continues to cement its leadership in utility-scale power innovation with the sale of Rock Rose Energy Storage LLC (Rock Rose), its first standalone energy storage project. This milestone highlights the company's expertise and deep commitment to enhancing grid reliability through modern power solutions.

Rock Rose is a 200-megawatt/2-hour battery energy storage system (BESS) located in Fort Bend County, Texas. The fully developed project, which is expected to begin operations in 2027, continues Advanced Power's track record of success in the Electric Reliability Council of Texas (ERCOT) power region. Upon completion, Rock Rose will support grid reliability in the rapidly growing Houston and Freeport areas.

BESS facilities, such as Rock Rose, enhance grid reliability by storing surplus energy from the electric system. Grid operators can strategically dispatch power from BESS during periods of peak demand to support grid stability. BESS also accelerates the transition to cleaner, more resilient power infrastructure.

"The completed development and sale of Rock Rose Energy demonstrates the depth of Advanced Power's capabilities," noted Tom Spang, Advanced Power's CEO. "ERCOT, like other major power markets in the U.S., has an urgent need for projects that enhance grid reliability. As a premier developer of thermal, renewable, and now, BESS technology, Advanced Power is committed to bringing these contemporary power solutions to regions with urgent and growing energy and capacity needs."

Advanced Power was advised by PEI Global Partners, a leader in financing energy projects and infrastructure in the U.S.

Advanced Power | www.advanced-power.com