Frequently Asked Questions about Rate Changes

Yes, on April 1, 2025, Enbridge Gas changed the rates our customers pay. Details for the most recent rate change include:

Business customers who buy natural gas from Enbridge Gas will see a decrease in their natural gas bills ranging from about 21.4 to 32.7 percent per year, depending on location. The overall impact of these changes will depend on how much gas you use and whether or not you purchase your gas from a gas marketer.

Enbridge Gas buys natural gas and gas transportation services for our customers from the market and we pass these costs to you without mark-up. Delivery and storage rates are reviewed and approved by the Ontario Energy Board, which conducts an open review process with participation from consumer groups and Ontario municipalities.

Please visit our business rates section to view the rates specific to you and your location.

Gas costs – Gas commodity costs include information on the “Gas Supply Charge” and “Cost Adjustment” lines on your bill. The net natural gas rate reflects what we expect to pay for gas supplies and transportation services during the next year as well as any adjustments to make up the difference between our forecast cost for gas and actual costs from prior periods. Also, in the Union South rate zone (Rate M1 and M2), the cost of transportation to Ontario is included in the “Gas Supply Charge”.

Transportation costs – Transportation costs include information on the “Transportation to Enbridge” and “Cost Adjustment” lines on your bill and reflect the cost of transporting natural gas into Ontario from its North American sources.

Transportation costs vary depending on where you live due to changing fuel prices, pipeline tolls and available capacity on pipelines serving different parts of Ontario. For customers in the Union South zone (Rate M1 and M2), the transportation cost is included in the “Gas Supply Charge” line on your bill.

Delivery costs – Delivery costs include information on the “Delivery to You” line on your bill and reflect the cost of delivering natural gas to your home or business as well as an adjustment to make up the difference between our forecast and actual delivery rates from prior periods, through our safe and reliable distribution system. This charge also includes a facility carbon charge which is associated with the costs to operate Enbridge Gas’ facilities to deliver natural gas to you.

Storage costs (for Union rate zone customers) – Storage costs include information on the “Delivery to You” line on your bill and reflect the cost of storing natural gas so it is available when you need it.

Customer Charge – The customer charge partially covers the cost of maintaining a safe and reliable natural gas distribution system. It includes things like meter reading, customer services and 24-hour emergency response.

Federal Carbon Charge – The federal carbon charge has been removed from customer bills effective April 1, 2025. Please note that your bill will continue to show federal carbon charges (at a rate of 15.25 cents per cubic metre) incurred for any natural gas usage up to and including March 31, 2025. All of the money Enbridge Gas collects for the federal carbon charge goes to the government. Visit our federal carbon charge page for more information.

Rate Adjustment – An OEB-approved rate adjustment (Rider E) to reflect changes to Enbridge Gas' 2024 rates for the period of Jan. 1, 2024 to Dec. 31, 2024. These rates will be applied to customers’ bills from Jan. 1, 2025 to Dec. 31, 2025. For a typical residential customer this will result in a charge of approximately $1.14 to $1.52 (depending on location) that will be included in the Delivery to You, Transportation to Enbridge and Gas Supply Commodity sections. The total impact on your bill will depend on your usage.

The OEB has also approved a rate adjustment to reflect the clearance of the 2023 federal carbon deferral and variance account balances. This will appear as a one-time adjustment on customers’ April bills, and for a typical residential customer this will be a charge of approximately $0.85-$2.13, depending on your location.

The federal carbon charge has been removed from customer bills effective April 1, 2025. Please note that your bill will continue to show federal carbon charges (at a rate of 15.25 cents per cubic metre) incurred for any natural gas usage up to and including March 31, 2025. You can find your billing period listed in the “What do I owe?” section of your bill.

For example, if your bill shows “Billing Period Mar 12, 2025 – Apr 12, 2025”, your bill will continue to show the federal carbon charge line item with charges incurred from March 12 to March 31.

All of the money Enbridge Gas collects for the federal carbon charge goes to the government. Visit enbridgegas.com/federalcarbonprogram for more information.

A facility carbon charge is included in the delivery or transportation charge on the bill. This charge is associated with the costs to operate Enbridge Gas’ facilities that deliver natural gas to you. Effective April 1, 2025, for the average residential customer, the total facility carbon charge represents about 38-41 cents annually, depending on your location.

Because natural gas is a commodity, the market price can fluctuate with changes in the amount of readily available supply or in the level of demand for the product. A colder than normal winter season and lower supply and inventory levels have contributed to this market price increase. We adjust customer prices for market fluctuations every three months to reflect changes in the market price.

Enbridge Gas buys natural gas at a number of market supply hubs in Western Canada and the U.S. We pay market prices for natural gas and then pay other pipeline companies to transport the gas from supply hubs into our distribution system in Ontario. We adjust the rates we charge our customers for these items quarterly to reflect changes in market prices, which are passed through to our customers without mark-up. In addition, there are adjustments for the difference between our forecast for natural gas and natural gas transportation market prices, storage and distribution costs and the actual costs from prior periods.

The rates we charge customers for natural gas and gas transportation services are based on a forecast of the prices we expect to pay to buy these items from the market. Because the actual market costs can differ from our forecasts, adjustments are made quarterly (Jan. 1, April 1, July 1 and Oct. 1) to either refund or collect the difference so that you only pay the actual costs for these services and nothing more. These costs are passed on to customers without any mark-up.

The OEB has approved a rate adjustment (Rider E) to reflect changes to Enbridge Gas' 2024 rates for the period of Jan. 1, 2024 to Dec. 31, 2024. These rates will be applied to customers’ bills from Jan. 1, 2025 to Dec. 31, 2025. For a typical residential customer this will result in a charge of approximately $1.14 to $1.52 (depending on location) that will be included in the Delivery to You, Transportation to Enbridge and Gas Supply Commodity sections. The total impact on your bill will depend on your usage.

The OEB has also approved a rate adjustment to reflect the clearance of the 2023 federal carbon deferral and variance account balances. This will appear as a one-time adjustment on customers’ April bills, and for a typical residential customer this will be a charge of approximately $0.85-$2.13, depending on your location.

Different areas of the province are served by a different mix of natural gas transportation pipelines and gas supply sources, and as such, the costs for Enbridge Gas to buy gas supplies and transportation services from the market vary by location. In addition, the costs to build and maintain a distribution pipeline system varies by the geographic location for several reasons including different soil conditions (e.g. rockier soil in the north), population density and the distance between homes/businesses and the need for and timing of infrastructure expansions and maintenance. These costs differences are reflected in the four geographically based rate zones.

You’ll see two general types of natural gas rate changes during the calendar year. The first type occurs quarterly, on the first of January, April, July and October, to reflect changes in what Enbridge Gas expects to pay for gas commodity and transportation services, as well as differences between forecast and actual costs for prior periods. This is shown as a change in the gas commodity and transportation rates on your bill and may also appear as a small change in delivery rates as Enbridge Gas also uses natural gas to power our delivery system. These changes, which are passed through to you without mark-up, help ensure that you’re billed at a rate that closely reflects the expected market price of gas.

The second type of rate change occurs annually and reflects the overall costs to run a safe and reliable natural gas distribution system. This may include a change in the delivery or storage rates, or the customer charge, depending on your location.

All rate changes are approved by the Ontario Energy Board.

If you buy natural gas and/or transportation services from an energy marketer, the price you pay for your gas supplies and/or transportation depends on the terms of the contract and is excluded from this rate change. If you have questions about their charges, please contact them directly at the number found on your bill. For other services purchased from Enbridge Gas (natural gas transportation, storage and delivery), residential customer rate changes depend on your location.

Natural gas is a highly reliable energy source and a cost-effective energy solution for heating your business.

Enbridge Gas is committed to helping businesses manage their gas bills. We offer enhanced payment plans for customers who have concerns about their ability to pay their utility bill which will allow them to make smaller payments over time until the amount owing is repaid, and late fees will be waived during the repayment period. Find out more about available options for your business.

Conservation is one of the best long-term ways to reduce energy costs. We understand that to stay competitive you need to closely monitor your ongoing energy use, invest in energy efficiency, and take advantage of valuable rebates and incentives. Enbridge Gas provides a range of tools and education to give consumers and businesses the power to take control and manage their energy use.