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With more than 150,000 circuit-kilometres of power lines across the province, line maintenance is a top priority.


We are the only utility in North America with a dedicated, in-house vegetation management team. Maintenance of our assets includes managing vegetation on our rights-of-ways, which is an integral component of providing Ontario with a reliable supply of the electricity we all depend on. 


Photo of a Hydro One forester on a Right of Way (RoW) with a transmission tower in the background

Our Practices

We have the largest electricity distribution and transmission service territory in Ontario. Learn more about our preventative approach to vegetation management here.

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Photo of a Hydro One patch on personal protective gear

What We Do

Trees account for over 30 per cent power outages in Ontario. Learn about what our team is doing to manage vegetation to avoid power outages and ensure your safety.

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image of the outside of the Formet Industries building

Your Property

Are there trees or brushes growing on your property? Learn more about how to maintain this vegetation and what you are responsible for as a customer.

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Featured Project: Kanata Vegetation Management

Hydro One will be working in the Ottawa/Kanata Area this year.

Kanata Vegetation Management Project

Our Team

A team is only as good as its people. From our planners to our trained arborists, technicians, mechanical operators, and herbicide applicators, our team plays an important role managing one of the leading causes of service interruptions – vegetation.

Our arborists complete an apprenticeship through a Joint Apprenticeship Council the Power Workers’ Union. Apprentices complete 6,000 hours, which includes hands-on learning and in-school sessions at our training facility.

Visit our
Careers page to see current opportunities and to learn about our workplace. You can also watch our video below for an overview of our apprenticeship program.