Hydro One Limited

Hydro One Limited is Ontario's largest electricity transmission and distribution utility, headquartered in Toronto, Ontario, Canada. The company's core business involves delivering electricity safely and reliably across the province. Its mission is to energize life with reliable and sustainable solutions for a brighter future, while also supporting customers and ensuring energy affordability throughout Ontario.

Hydro One operates an extensive network, including approximately 30,000 circuit kilometers of high-voltage transmission lines and 126,000 circuit kilometers of low-voltage distribution lines. The company serves nearly 1.5 million customers, encompassing residential, small business, commercial, industrial clients, and municipal utilities, primarily across rural areas, covering about 75% of Ontario's geographic expanse. Beyond its core electricity services, Hydro One also operates a telecommunications business through Acronym Solutions Inc., provides energy solutions for commercial and industrial clients via AUX Energy, and manages electric vehicle fast-charging stations under the Ivy Charging Network brand.

In recent leadership changes, Megan Telford assumed the role of President and CEO on June 9, 2026, succeeding David Lebeter, with Melissa Sonberg serving as the Chair of the Board. The company continues to invest in critical infrastructure, exemplified by its September 2026 application to the Ontario Energy Board for approval to construct the $1.3 billion North Shore Link transmission line. Hydro One maintains its position as a significant regulated utility, with the Province of Ontario holding a substantial ownership stake.