Canadian Solar e-STORAGE Secures 75 MW/381 MWh Michigan Storage Deal
CSIQ•Canadian Solar’s e-STORAGE will deliver a 75 MW/381 MWh battery energy storage system to Apex Clean Energy’s Coldwater Solar site in Michigan, with deliveries from early 2027 and commercial operation by mid-2027. The turnkey platform integrates SolBank 3.0 battery blocks, power conversion units and EQ-S energy management technology manufactured at Canadian Solar’s facilities.
1. Deal Terms
Canadian Solar’s e-STORAGE unit signed an agreement to supply a 75 MW/381 MWh DC battery energy storage system for Apex Clean Energy’s Coldwater Solar facility in Branch County, Michigan. The project will be co-located with the existing solar farm and is structured as a turnkey, integrated solution.
2. Technology and Delivery
The system combines SolBank 3.0 lithium-ion phosphate battery blocks, Power Conversion Systems and the proprietary EQ-S Energy Management System into a single utility-scale platform. All battery cells and system components are produced at Canadian Solar’s manufacturing sites to ensure full supply chain visibility.
3. Timeline and Market Context
Deliveries are scheduled to begin in early 2027, with commercial operation targeted for mid-2027. Michigan law mandates 2,500 MW of energy storage by 2030 and the retirement of major coal units by 2032, creating strong demand for grid-firming storage.
4. Impact on Canadian Solar
This award bolsters Canadian Solar’s e-STORAGE pipeline and contributes to its $3.5 billion contracted backlog as of May 2026. It deepens the company’s footprint in the U.S. utility-scale storage market and highlights its vertically integrated manufacturing capabilities.
