Hydro One Inc. delivers electricity safely, reliably and responsibly to homes and businesses across the province of Ontario. We are wholly owned by the Government of Ontario, and are proud of our key role in the provincial infrastructure.

Ontarians can rely on our 100-year history of operational excellence and experience in the transmission and distribution of electricity. Hydro One and its four subsidiary companies offer sound commercial practices that deliver value to our customers and owners.
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Power Outages Electrical Safety Hydro One Networks Customers Energy Efficiency Quick Links News Releases 2006 Annual Report 2007 Year-End Financial Results Careers Glossary This is the place to find out what Polychlorinated means. Visit the glossary to view over 50 hydro-related terms. Unregistered Easements Our entire database is at your fingertips. It's always up-to-date and it's available anytime.