Canada's oldest corporation is buying green power as part of its sustainable environmental strategy. Over the next year, Hudson's Bay Company, established in 1670 and currently the country's largest department store retailer, will buy 1000 MWh of green power from Ontario Power Generation (OPG) for its flagship Toronto store. OPG sells a blend of wind, small hydro, biogas and solar sources. HBC's Fred Ware says the purchase is a "perfect complement" to the company's plan to reduce its use of non-renewable natural resources in all operations. Since 2000, energy retrofits and recycling programs in about two-thirds of its more than 500 stores across Canada have reduced HBC's energy costs by C$5.9 million and its greenhouse gas emissions by 50,000 tonnes. "Our purchase of green power should enable us to drop this number even further," says Ware. HBC expects to have the retrofits completed in all of its stores within three years.