The Canadian Nuclear Safety Commission (CNSC) has granted Ontario Power Generation (OPG) an extension to operate the Pickering nuclear generating station (PNGS) units 5 to 8 until the end of 2026.

The new permit extends the previous deadline of 31 December 2024.

OPG is now authorised to run these units up to a maximum of 305,000 equivalent full power hours (EFPH), an increase from the former limit of 295,000 EFPH.

The amended licence requires OPG to execute and maintain an enhanced fitness-for-service programme.

During the public hearing in Pickering in June 2024, the commission reviewed submissions from OPG, CNSC staff and 54 intervenors before reaching its decision.

The PNGS, situated in Pickering, Ontario, is on the traditional territory of the Michi Saagiig Anishinaabeg and consists of two reactor facilities with a total of eight CANDU reactor units.

Ontario Minister of Energy and Electrification Stephen Lecce stated: “The data is clear - Ontario needs more power to meet growing energy demands.

“We have long believed that the Pickering nuclear generating station is essential to Ontario’s energy expansion plan, which is why we welcome the approval to extend the operation of one of the country’s best-run generating stations and a critical source of affordable and non-emitting power for two million homes.

“This approval is a powerful endorsement of the skill and dedication of the 4,500 workers at this station and its proven track record of producing reliable and affordable electricity.

“The continued operation of the Pickering nuclear generating station will allow for the safe production of [the] reliable, affordable and clean power we need, as well as life-saving medical isotopes to combat cancer.”

The highest generation output at the PNGS was recorded in 2023 since 2019.

The ongoing operation at the station is supported by OPG’s 4,500 staff.

In January 2024, the Ontario government stated that it would announce plans to refurbish the Pickering nuclear power station.