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Guide5 min readFebruary 21, 2026

Submetering in Toronto Hydro Territory

Toronto Hydro Electric System Limited is the local distribution company for the City of Toronto, serving approximately 780,000 customers. If your building is in Toronto, your delivery charges come from Toronto Hydro.

When a building in Toronto Hydro territory is submetered, the USMP passes through Toronto Hydro's delivery charges to each suite with no markup. This is required by the OEB Unit Sub-Metering Code. The rates applied are the same rates set by the OEB for Toronto Hydro customers.

Toronto has a large inventory of multi-residential buildings, many of which were built as bulk-metered properties. The retrofit potential is significant. Buildings across Toronto, from downtown high-rises to midtown and suburban apartment complexes, can benefit from suite-level metering.

Property managers in Toronto should be aware of Toronto Hydro's specific rate structure, which includes distribution charges, transmission charges, and regulatory charges. These appear on submetered bills as separate line items. Your USMP should be able to explain each charge clearly.

Toronto's building stock includes a wide range of electrical configurations. Some buildings have well-organized meter rooms and straightforward riser designs. Others, particularly older buildings, may have more complex configurations that require careful survey work before installation.

Conservation is particularly relevant in Toronto, where electricity demand peaks during summer months. Submetered residents who shift usage to off-peak periods and reduce waste can see measurable bill reductions. The Navigant study data, which included Toronto buildings, supports this observation.

For boards considering submetering in Toronto, the process is the same as anywhere in Ontario: verify the provider is OEB-licensed, get a site survey, plan resident communication, and proceed with installation. The local utility territory does not change the regulatory framework.

Related Resources

Guide

Understanding Submetering in Ontario

A practical guide to how submetering works in Ontario, what changes for residents and property managers, and the benefits for multi-residential buildings.

Research

The Navigant Study: 40% Reduction Explained

What the Navigant evaluation actually found, why the 40% number is credible, and how to interpret it for your building.

Programs

OESP: Financial Help for Low-Income Households

How the Ontario Electricity Support Program works, who qualifies, and how residents on submetering can apply.

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