Copenhagen Infrastructure Partners (CIP) has acquired full ownership of the 1 GWh Beehive Battery Energy Storage System (BESS).

With 250 MW of capacity and four hours of duration (1,000 MWh), Beehive is a battery storage project located in Peoria, Arizona. After construction began earlier this year under EDF Power Solutions, CIP will now oversee the remainder of the development, with commercial operation expected in the first half of 2026.

According to CIP, the project includes a 20-year tolling agreement with Arizona Public Service Company (APS), the largest energy utility in the state, serving approximately 1.4 million homes and businesses across 11 of Arizona’s 15 counties.

Beehive is designed to draw energy from the grid during periods of high renewable generation, store it in battery arrays, and discharge it back to the grid during peak demand hours. In doing so, the BESS supports APS in managing its growing energy and capacity needs.

“With the rapid increase in electricity demand across the Southwest, we believe battery storage will play a key role in driving innovation and economic growth,” said Tim Evans, Partner and Head of CIP North America.

Ryan Pfaff, Executive Vice President of Utility-Scale and Distributed Energy at EDF Power Solutions, added: “EDF Power Solutions actively seeks partnerships throughout the project lifecycle with the goal of optimizing our portfolio and maximizing value creation.”