Bruce A unit 3 updateBruce Power approved to restart idled Ontario nuke - December 5, 2003 4:38PM ET TORONTO, Dec 5 (Reuters) - Bruce Power said on Friday it received approval from Canadian regulators to restart its Bruce A unit 3 nuclear reactor and should have it reconnected to Ontario's power grid later this month. The nuclear power plant operator said safety and operating tests will begin shortly, and the reactor is expected to pump about 750 megawatts of electricity into the grid of Canada's most populous province once it's reconnected. The approval, granted by the Canadian Nuclear Safety Commission, comes after the restart of the Bruce A unit 4 reactor in October. At the time, the unit 3 reactor was expected to restart in November. Both units, located on the shores of Lake Huron about 250 kilometers (155 miles) northwest of Toronto, have undergone a long repair and upgrade program and were originally expected back in service by June. The reactors were mothballed in 1998 after they were found to be operating at minimum safety levels by provincial utility Ontario Hydro. Bruce Power was purchased in February from money losing parent British Energy Plc by a consortium of firms led by Saskatoon, Saskatchewan-based uranium miner Cameco Corp. Cameco, TransCanada PipeLines Ltd. and the Ontario Municipal Employees Retirement System each own a 31.6 percent stake in Bruce. The Power Workers' Union and the Society of Energy Professionals own the remaining 5.2 percent.