One of Canada's Largest Battery Storage Sites Officially Opens in Napanee
The $600 million project can power up to 250,000 homes and store nuclear electricity for use during peak demand, officials said.
- On Tuesday, Ontario Minister of Energy and Mines Stephen Lecce announced the Napanee Battery Energy Storage System is fully operational, a $600 million facility capable of powering up to 250,000 homes.
- Ontario's electricity demand is projected to increase 90 per cent by 2050, driven by electrification and population growth, prompting the province to develop storage that captures nuclear power during low-demand periods.
- Developed by Atura Power and Ameresco, the facility includes 284 battery units providing 250 megawatts of capacity, with on-site fire suppression systems designed to operate for more than 20 years.
- Environmental Defence senior Ontario climate program manager Emily Hunter welcomed the project, stating it will "strengthen grid reliability and reduce dependence on fossil gas" while helping stabilize electricity costs for families.
- The global battery storage market could reach $145 billion by 2030, though BloombergNEF analysts warn Canada must increase capacity by 1,500 per cent to compete as Ontario plans to contract 5,000 megawatts next year.
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12 Articles
St Catharines Standard
Province celebrates massive Napanee battery project, avoids clear answers on emergency responsibility
Ontario Minister of Energy and Mines Stephen Lecce travelled to Greater Napanee on Tuesday, May 19, 2026, to celebrate the completion and commercial launch of one of Canada’s largest battery energy storage facilities, describing the project as proof that Ontario…
Ontario completes one of Canada’s largest battery storage projects in Napanee
One of Canada’s largest battery energy storage facilities has come online: a $600-million project in Greater Napanee that the Ford government says will help meet rising electricity demand and strengthen the provincial grid.
One of Canada's largest battery storage sites officially opens in Napanee
The Napanee Battery Energy Storage System is capable of powering up to 250,000 homes, according to the province. The facility will store electricity from nuclear facilities when demand is low, then pump it back into the system when more power is needed.
Napanee Battery Energy Storage System - Ontario Completes One of Canada's Largest Battery Storage Projects On-Budget and Ahead of Schedule
As part of its plan to protect Ontario and build a more competitive, resilient and self-reliant economy, the Ontario government is delivering on its plan to provide reliable, affordable and clean en. . .
Napanee Battery Energy Storage System comes online and on-budget
The province of Ontario has brought one of the largest battery storage projects in Canada online as it aims to power a growing economy. Tuesday, Minister Stephen Lecce announced the successful completion and start of commercial operations of the Napanee Battery Energy Storage System, on-budget and approximately five weeks ahead of schedule. The 250-megawatt facility is capable of powering 250,000 homes for up to four hours during peak demand pe…
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