Ontario electricity guide

Ontario Electricity Bill Calculator

Reviewed July 22, 2026 · Written by David R. Hallowick

Planning tool only. Defaults are educational and editable. Delivery, regulatory charges, taxes, rebates, account class and utility tariffs vary. Use the OEB calculator and your distributor for an official comparison.

Use this simple estimator to approximate your monthly electricity bill. Enter your usage and estimated charges. This tool is for education only, but it helps illustrate how the different components of an Ontario electricity bill add up.









Tip: Try different usage levels or pricing plans to see how costs change. Shifting heavy loads to off‑peak hours can noticeably reduce totals under Time‑of‑Use pricing.

What makes up an Ontario electricity bill?

An Ontario electricity bill includes several components, not just the electricity you use. The most visible part is the energy charge based on your kWh consumption, but several other charges contribute to the final total.

Most residential bills include:

  • Energy charges — based on kWh used
  • Delivery charges — cost of poles, wires, transformers, and system operations
  • Other amount shown separately on your bill (GA) — system‑wide cost recovery
  • Regulatory charges
  • HST

Because these components behave differently, your total bill can change even when your usage stays similar month to month.

Typical electricity usage in Ontario homes

Electricity usage varies widely depending on home type and heating method:

  • Small apartment: 300–500 kWh per month
  • Townhouse or small home: 600–900 kWh per month
  • Large detached home: 1,200–2,000+ kWh per month

Electric heating can significantly increase winter usage. For the most accurate estimate, check the kWh value on your most recent bill.

Why two homes can have different bills

Two homes using the same amount of electricity can still have different bills because:

  • Delivery charges vary by utility
  • Households may choose different pricing plans (TOU, Tiered, ULO)
  • Usage patterns differ (peak vs off‑peak hours)
  • Seasonal weather affects heating and cooling loads

Learn more about Ontario electricity billing

Use official information for current decisions. Electricity prices, utility delivery charges and assistance programs can change. Check the Ontario Energy Board electricity-rates page, the OEB bill calculator, and your local distributor.