Canadian Solar business wins 1GWh DEPCOM Arizona storage supply contract

E-STORAGE, which is part of Canadian Solar's majority-owned subsidiary CSI Solar, has been awarded a supply and integration contract by DEPCOM Power, Inc. and Tucson Electric Power (TEP) in Arizona for 1 GWh DC of energy storage solutions.

E-STORAGE will deliver its proprietary energy storage system ‘SolBank’ to the Roadrunner Reserve System project that will be constructed by DEPCOM Power. The project has a rated capacity of 200 MW and a total storage capacity of 800 MWh AC. TEP will own and operate the project which will be the largest energy storage system on TEP's energy grid and among the largest in Arizona. 

Once operational, the energy storage project will serve up to approximately 42,000 homes for a four-hour duration. This marks the second significant project in Arizona for E-STORAGE, following the Papago Storage project (1,200 MWh / 1,519 MWh DC nominal) in August - the Papago project is scheduled to be in service in late 2024 and the Roadrunner Reserve System project is scheduled to begin operations in the summer of 2025.

"We have been very pleased with the SolBank solution from CSI Solar and look forward to implementing it as part of the Roadrunner Reserve System project," said Justin Bloch, president, projects, DEPCOM Power. "Forward-thinking storage projects like this continue to add critical capacity to the grid, and we are proud to be part of TEP's path forward to balance energy supply and demand for Arizona residents."

Eric Bronner, TEP senior director of system integration and operations, added: "Battery energy storage systems that offer safe and reliable operation are key to Tucson Electric Power's expansion of clean energy resources. We're excited to work with DEPCOM Power and Canadian Solar to bring Roadrunner Reserve online for our community.”

Colin Parkin, president of E-STORAGE business group, commented: "We are excited to support DEPCOM Power and Tucson Electric in their efforts to build and operate the Roadrunner Reserve System project. This project will contribute to the great state of Arizona's growing solar energy capacity and aid the state in meeting surging electricity demand and energy reliability goals."