Hydro One Limited

Hydro One Limited is an electricity transmission and distribution utility headquartered in Toronto, Ontario, Canada. The company's mission is to provide a safe, reliable supply of electricity to customers, create value for shareholders, and support the well-being of Ontario communities.

Hydro One operates extensive high-voltage transmission lines and low-voltage distribution networks, serving approximately 1.5 million customers across Ontario, predominantly in rural areas, as well as large industrial clients and municipal utilities. Beyond its core electricity services, the company also provides telecommunications support and information and communications technology solutions, and is involved in joint ventures such as the Ivy Charging Network for electric vehicle fast charging.

As Ontario's largest electricity transmission and distribution provider, Hydro One controls approximately 98% of the province's high-voltage transmission grid. In April 2026, the company filed its 2025 Annual Report, highlighting strong operational performance, safety improvements, and significant infrastructure investments, including $3.4 billion in its networks during 2025. Recent strategic initiatives include being designated to develop the Red Lake Transmission Line in northwest Ontario, often in 50% equity partnerships with First Nations, and ongoing grid modernization efforts incorporating AI-driven predictive maintenance. David Lebeter currently serves as President and CEO, with Megan Telford appointed to succeed him effective June 9, 2026.