Canada Sets Battery Record With Skyview 2 Grid Storage Project

Ontario breaks ground on Canada's largest-ever battery storage project, a 411 MW facility set to power 400,000 homes by 2027

6 Mar 2026

Ontario has set a new benchmark for clean energy infrastructure. In November 2025, the province broke ground on Skyview 2, a 411 MW Battery Energy Storage System that is, by any measure, the largest battery storage project ever procured in Canadian history. Developed by Potentia Renewables alongside e-STORAGE and the Algonquins of Pikwàkanagàn First Nation, the facility will store and dispatch enough electricity to serve roughly 400,000 Ontario homes. Construction began in February 2026, with commercial operation targeted for the second quarter of 2027.

The timing is deliberate. Ontario's grid is under mounting pressure from electric vehicles, expanding data centres, and a generation mix that leans increasingly on variable renewables. Storage at this scale addresses each of those stress points directly, balancing supply and demand in near real time, deferring expensive transmission upgrades, and absorbing renewable output that would otherwise go to waste. It is infrastructure built for a grid that is already changing fast.

At the project's core is e-STORAGE's SolBank 3.0 lithium iron phosphate battery platform. Around 390 units will be deployed across the site under a full engineering, procurement, and construction mandate, backed by a 21-year long-term service agreement. That operational horizon matters: it strengthens the commercial case for future large-scale storage investment across Canada and signals that serious capital is now comfortable betting on the sector's long-term trajectory.

The partnership dimension is equally significant. Potentia developed Skyview 2 with the Algonquins of Pikwàkanagàn First Nation, reflecting a broader shift in how major Canadian energy projects are structured. Indigenous participation is no longer a footnote; it is increasingly central to how projects get built and how they earn community support over decades.

Canada's total storage capacity more than doubled in 2025 to nearly 1 GW, with larger projects already in the pipeline. Procurement frameworks are maturing, global battery suppliers are competing for Canadian contracts, and the partnerships needed to sustain that momentum are being formalised. Skyview 2 is not just a record-breaker. It is evidence that Canada's grid storage buildout has moved decisively from ambition to delivery.