The Point Lepreau Nuclear Generating Station (PLNGS) is officially back online. Following a brief outage for essential maintenance, the facility returned to operation on September 26, 2026, restoring a crucial component of New Brunswick’s energy grid.

Safe and Successful Repairs

The temporary shutdown was initiated after system monitors detected elevated tritium levels inside the reactor building. Tritium, a byproduct produced in the heavy water circulating within the reactor, was fully contained within the building exactly as designed. NB Power confirmed that there was never any risk to the public, the environment, or the facility’s staff.

During the outage, crews successfully repaired an instrumentation line connected to the heat transport system. Because this maintenance could only be performed while the station was offline, the temporary shutdown was a necessary safety measure. After completing the repairs, teams conducted thorough testing and operational reviews before safely reconnecting the station to the grid.

A Cornerstone of New Brunswick’s Energy

Operating since 1983, the Point Lepreau Nuclear Generating Station is a vital asset for the region’s economy and energy security. With a net capacity of 660 megawatts, it provides safe, reliable, and clean electricity to residents and businesses alike. In fact, as of 2025, the station supplied approximately one-third of all electricity used in the province, making its return to operation a significant update for Saint John and the surrounding communities.

For more details on the maintenance and the station’s return to service, you can read the full update on the NB Power official website.

Frequently Asked Questions

Why was the Point Lepreau Nuclear Generating Station taken offline?

The station was taken offline to safely repair an instrumentation line connected to the heat transport system after monitors detected elevated tritium levels in the reactor building.

Was there any danger to the public during the incident?

No. The tritium was completely contained within the reactor building as designed, posing no risk to the public, the environment, or the staff.

How much power does the Point Lepreau station provide?

The station has a net capacity of 660 megawatts and supplies approximately one-third of the electricity used in New Brunswick.