Hydro One

AUX Energy

AUX Energy, a wholly owned Hydro One Energy Solutions Company, is dedicated to paving the way towards a net-zero economy. We offer comprehensive solutions for fleet electrification, microgrids, and battery storage where we transform energy challenges into sustainable opportunities. We collaborate closely with our clients to deliver tailored energy solutions, ensuring a seamless transition to a greener future. For more information, visit auxenergy.com.

Acronym Solutions Inc.

Acronym Solutions Inc. (formerly Hydro One Telecom Inc.) is a full-service Information and Communications Technology (ICT) company that provides a range of scalable and secure network connectivity, cloud and operational solutions. We support Ontario-based businesses, large enterprises, service providers, healthcare providers, public sector organizations and agencies, utilities and school boards. We leverage our extensive network expertise to design and build customized, fully scalable solutions to help our customers grow their business and realize their full potential.

With 25 years' experience managing the communications network that enables Ontario's electrical grid, Acronym is uniquely positioned to understand the mission-critical needs of any business and deliver the innovative and reliable services that respond to the changing demands of a post-pandemic business environment and support rapid growth and digital transformation initiatives. For more information, visit acronymsolutions.com.

Hydro One Networks Inc.

Hydro One Networks Inc., our largest subsidiary, is involved in the planning, construction, operation, and maintenance of our transmission and distribution network.

Our transmission system carries electricity from generating stations to local distribution companies and large industrial customers through our high-voltage network of transformer stations, transmission towers, and wires.

We own 97 per cent of transmission in Ontario with 30,000 circuit kilometres of high-voltage transmission lines. We also own and operate 26 interconnections with neighbouring provinces and states, which allow electricity to flow into and out of Ontario.

Our distribution system delivers electricity at lower voltages to homes, farms, and businesses through our network of hydro poles and power lines. Our network is the largest in the province, with 123,000 circuit kilometres of wires serving 1.5 million customers, mostly in rural areas.

Hydro One Remote Communities Inc.

Remotes is a unique integrated generation and distribution company licensed to provide electricity within 12 isolated communities and 13 grid-connected communities in northern Ontario (at December 2024). For more information, visit www.hydrooneremotes.ca.

Hydro One Sault Ste. Marie

Hydro One Sault Ste. Marie is an integral component of Ontario's transmission system that connects northern Ontario to southern Ontario consisting of 15 transmission stations, 560 kilometres of high and medium voltage 44-230 kV transmission lines, and related infrastructure covering an area of 12,000 square kilometres and connects to Hydro One’s Wawa and Mississagi transmission stations. Learn more about Hydro One Sault Ste. Marie.

Ivy Charging Network