Canadian Solar Inc. (the "Company" or "Canadian Solar") (NASDAQ:CSIQ) today announced that e‑STORAGE, its energy storage solutions business, has signed an agreement to supply and commission a 100 MW/200 MWh battery energy storage system (BESS) for OX2's Muswellbrook Solar Farm and Battery, a solar-plus-storage project in New South Wales, Australia. Shipments are scheduled to begin in Q3 2027, with commercial operation targeted for Q3 2028. The battery cells and SolBank system will be produced in-house at Canadian Solar's manufacturing facilities, giving the customer end-to-end supply chain visibility and ensuring strict quality control across the product.

e‑STORAGE will deliver an integrated solution built on SolBank 3.0 battery containers, paired with Power Conversion Systems (PCS), plant controls, and the Company's proprietary EQ-S Energy Management System (EMS) developed and built in-house by e‑STORAGE's North American software team. e‑STORAGE will be responsible for the R1 grid connection studies, supply the hybrid power plant controller that coordinates the battery with the co-located solar farm, and lead the overall integration and commissioning of the hybrid project. The arrangement is backed by a 20-year long-term service agreement (LTSA), placing hardware, proprietary software, and long-term performance under a single accountable partner.

The project sits roughly 2.5 kilometers east of Muswellbrook, on land at a former coal mine within the Hunter-Central Coast Renewable Energy Zone. The location is significant: as the region's aging coal generators wind down toward retirement in the early 2030s, the dispatchable capacity they once provided must be replaced. Two-hour storage fills that gap directly, holding midday solar output and releasing it into the evening demand peak when supply from retiring thermal plants tightens.

Once operational, the system will support the long-term hybrid power purchase agreement OX2 has signed for the project, converting variable solar output into firm, contracted supply. By storing and dispatching solar energy on demand, the BESS strengthens grid reliability in a region transitioning away from coal and helps deliver firm renewable power to the communities in the Hunter Region.