Hydro One named the top-ranked Corporate Citizen in the utility sector by Corporate Knights Magazine, and one of the top ten Corporate Citizens in Canada

TORONTO, June 8, 2012 /CNW/ - Hydro One announced today that it is has been named one of Canada's top ten Corporate Citizens in Corporate Knights Magazine's annual ranking of the best 50 corporate citizens in the country. Corporate Knights Inc. is an independent Canadian-based media company that publishes the world's largest circulation magazine with an explicit focus on corporate responsibility.

Hydro One also ranked first in Canada for corporate citizenship among utilities. The annual Best 50 Corporate Citizens in Canada ranking survey follows a review of significant Canadian companies across 10 core environment, social, governance indicators as well as a relative core business impact score. Indicators include diversity, environmental stewardship and governance indicators such as board independence, amongst others. Corporate Knights defines ranked companies as companies that fulfill their part of the social contract, while providing innovative solutions to pressing social and environmental challenges of our time.

"As the steward of Ontario's transmission system and largest electricity distribution system, we take our role in the communities we serve very seriously and we are pleased to be recognized by Corporate Knights Magazine as one of Canada's leading corporate citizens for the sixth consecutive year," said Laura Formusa, President and CEO, Hydro One. "Hydro One and all its employees are proud to contribute to Ontario communities as responsible corporate citizens."

Hydro One delivers electricity safely, reliably and responsibly to homes and businesses across the province of Ontario and owns and operates Ontario's 29,000 kilometre high-voltage transmission network that delivers electricity to large industrial customers and municipal utilities, and a 121,000 kilometre low-voltage distribution system that serves about 1.4 million end-use customers and smaller municipal utilities in the province. Hydro One is wholly owned by the Province of Ontario.

please contact Hydro One Media Relations 24 hours a day at 1-877-506-7584 (toll-free in Ontario only) or 416-345-6868. Our website is www.HydroOne.com. Corporate Knights Magazine's 2012 social citizenship rankings can be viewed at www.corporateknights.ca