New Brunswick's Point Lepreau nuclear power plant will resume sending power to homes and businesses next week.
The plant has been offline for two weeks with some problems.
A spokesman says crews at Atlantic Canada's only nuclear power plant have corrected issues with the chemistry of the water in its boilers and refuelling systems.
Lepreau has operated at less than full capacity since coming back online last November, following a four-and-a-half year refurbishment.
Last month, it was down to 35 per cent capacity, despite an operational plan filed with the Energy and Utilities Board calling for performance of 93 per cent during its first six months.
The problems have cost the utility more than $30 million in lost production. Most payments on the $2.4 billion reactor started to come due as soon as it came online.
The refurbishment cost $2.4 billion, more than $1 billion more than the original estimates. The New Brunswick government is attempting to get the federal government to cover the cost overruns.
The Point Lepreau project was the first time Atomic Energy of Canada Ltd. (AECL) had refurbished a Candu-6 reactor.