On Thursday, Hydro president and CEO Jay Grewal said nearly 98 per cent of the corporation's electricity is generated using renewable hydropower — and the electricity now coming from the 695-megawatt station adds to that. "The energy from Keeyask will help preserve that advantage for decades to come, while also helping to keep electricity rates for Manitoba customers among the lowest on the continent," Grewal said in Hydro's news release. The site is expected to have seven units producing an average of 4,400 gigawatt hours a year, the release says, making it Manitoba's fourth-biggest generating station. There are still about 600 people working at Keeyask to bring the remaining six units into service, which will happen one-by-one over the next year, the release says.