Canadian Solar Unit to Supply 381 MWh Battery for Michigan Solar Project

The integrated SolBank 3.0 platform is meant to provide on‑demand power as Michigan moves to replace retiring coal capacity and meet its storage target.

Overview

e‑STORAGE, Canadian Solar’s storage arm, announced Wednesday it will supply a 75 MW / 381 MWh battery energy storage system to be co‑located with Apex Clean Energy’s 150 MW Coldwater Solar in Branch County, Michigan.
Deliveries are scheduled to begin in early 2027 and commercial operation is targeted for mid‑2027, according to the company announcement.
The vendor will deliver an end‑to‑end package that pairs SolBank 3.0 lithium‑iron‑phosphate battery blocks with power conversion systems and the EQ‑S energy management system so Apex has a single accountable technology partner.
The project responds to Michigan policy that requires 2,500 MW of storage by 2030 and to scheduled coal retirements through 2032, giving the grid a source of dispatchable capacity and peak‑time power.
Canadian Solar says e‑STORAGE has shipped more than 20 GWh of BESS and holds a $3.5 billion contracted backlog, a scale the company says will help speed utility‑scale storage rollouts and create new firming and market revenue opportunities for the region.