Distribution connections

Commercial and industrial customers

As Ontario’s electricity demand continues to grow, we’re dedicated to connecting you to safe and dependable energy. With new industries and expanding infrastructure, your business plays a vital role as we strengthen local communities and ensure a reliable energy future for all.

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We're here to help

Our Commercial & Industrial Customer Relations (CICR) team is here to help your business every step of the way. Whether you’re seeking guidance on billing, operations, rebate opportunities, or have questions about our services, we’ll provide you with expert assistance. 

CICR@HydroOne.com 1-866-922-2466 Available Monday to Friday: 8:30 a.m. – 4:00 p.m. 
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Billing support

  • Detailed breakdowns of rates, usage and load history
  • Forecasts for new equipment or upgrades
  • Guidance on rebates, regulatory changes and conservation programs
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Operations assistance

  • Coordinate new connections and upgrades
  • Assist with power-quality issues
  • Support planning for reliability and capacity changes
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Account resources

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Your bill, explained

Use our interactive bill example to better understand the components of your bill and how each is calculated. Plus, learn more about your business’ rate classification, interval metering, how to determine load factor and more.

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Cost of power estimate

If you're considering a new or upgraded service ≥ 50 kW, complete our online form and we'll estimate your monthly electricity costs.

Capacity and connection information

Resources for connection planning

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Electric vehicle charging station connections

Request an assessment and see if your business is eligible to install electric vehicle (EV) charging stations.

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Getting connected

See what steps are involved when connecting distribution customers.

Additional initiatives and services

Explore business-focused offerings that further
support your evolving needs

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The Industrial Conservation Initiative

Designed to help large energy users manage Global Adjustment costs by reducing demand during peak hours.

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Energy reporting and benchmarking

Owners of commercial, industrial and multi-residential buildings with 50,000 square feet or more must report annual energy usage.

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The Flexibility Initiative

We’re partnering with eligible large business customers to build a smarter, more affordable grid.

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Meter reading schedules

Access the 2026 billing schedule based on your account’s bill group.

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Sign up for outage alerts

Get alerts, reminders and updates for both unexpected and upcoming planned outages, sent directly to your phone or email.

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Additional resources available

Check out various business customer links and forms that support your unique needs.

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