The 825MW unit has already been safely shut for the investment, maintenance and inspection program, during which 700 temporary workers will work alongside Bruce Power employees to complete 16,500 tasks, to set the unit up for yet another successful operating cycle.

Bruce Power chief nuclear officer and executive vice president Len Clewett said the company’s continued strategic investments are paying off with strong operational performance that benefits all Ontarians.

"By investing now, we are setting the table for continued safe, reliable performance so the people of Ontario have continuous access to safe, clean, low-cost electricity when they need it," Clewett added.

All Bruce B units operated at capability factor of 88% in 2013.

A revitalized, eight-unit Bruce site provides 70% of the energy needed to phase out coal in the province.

Bruce Power has provided 30% of the province’s energy last year.