Grimsby Power

Customer Account Portal Notice

Posted October 23rd, 2026

We are currently experiencing an issue with our Customer Account Portal; recent invoices and the current account balance may not be displayed. The technical team is actively working to resolve the issue as quickly as possible. If you are unable to access your current account balance through the portal, please contact our office at 905-945-5437 option 2 and we will be happy to assist you. We apologize for any inconvenience this may cause and appreciate your patience and understanding while we work to restore full functionality.

Power Outage Affecting 2,000+ Customers Restored Following Weather-Related Transmission Supply Interruption

Posted August 7th, 2026

Grimsby Power appreciates the understanding and patience shown by its customers throughout the outage. The utility also recognizes the exceptional efforts of its operations and field staff, whose rapid response and coordinated actions helped minimize the duration and impact of the interruption.

A power outage affecting more than 2,000 Grimsby Power customers, primarily on the north side of the QEW, occurred at approximately 9:04 p.m. on Sunday, August 2.

The outage was caused by a weather-related impact on Hydro One's transmission system, resulting in a loss of supply to a portion of the Grimsby Power distribution network.

The interruption originated on Hydro One's transmission system and was beyond Grimsby Power's control. Upon confirmation of the transmission supply loss, Grimsby Power crews responded immediately and initiated switching operations within the local distribution system to restore power as quickly and safely as possible. Power was restored to all customers by approximately 10:40 p.m., about 96 minutes after the outage began.

Grimsby Power remains committed to maintaining a reliable electrical system and restoring service as quickly and safely as possible when outages occur.

Power Outages July 1st & 2nd

Posted July 2nd, 2026

Dear Town of Grimsby Residents:

We recognize the frustration and inconvenience caused by multiple outages in a short period of time. Thank you for your patience and understanding as crews worked through complex system events.

On July 1st, Grimsby Power crews responded to multiple outage events, including storm-related damage and transmission supply issues from Hydro One. Grimsby Power crews worked throughout these events to restore service as safely and efficiently as possible. While the transmission supply issue was outside of Grimsby Power’s control, our crews remained focused on supporting affected customers and restoring power as quickly as conditions allowed.

On July 2nd, as crews were restoring the system to its normal configuration protection equipment at the station operated resulting in another widespread outage. Our crews responded quickly and restored power within an hour.

We will continue to closely monitor our systems and respond to outages quickly and efficiently to ensure reliable service for the Town of Grimsby.

Sincerely,

Remy Fernandes

President and CEO

Grimsby Power Inc.

2025 Supply Mix Data

Posted June 26th, 2026

Ontario’s electricity supply mix information is provided by the Ministry of Energy. This information shows the sources used to generate electricity supplied across the province. For more details on Ontario’s system-wide electricity supply mix data for 2025 click on the link below.

Potential Scams

Posted April 22nd, 2026

Please be advised that Grimsby Power does not request access to your home to advise on ways to save on electricity due to high bills. If you have any concerns about your bill please call us directly at 905-945-5437 and press 2.

For more information about potential scams please visit Energy scams | Ontario Energy Board.

New Rates Effective January 1, 2026

Posted December 11th, 2025

On December 11, 2025, the Ontario Energy Board (OEB) issued its decision and order regarding Grimsby Power’s rates, effective January 1, 2026. Based on this decision, a residential customer using 750 kWh per month will see an increase of approximately $4.42, or 3.27%, after taxes and the Ontario Electricity Rebate, starting January 1, 2026. For full information regarding the new rates and the application submitted to the Ontario Energy Board please click here.

New Electricity Prices Effective November 1, 2025

Posted October 21st, 2025

New RPP electricity prices will take effect on November 1, 2025. While electricity prices are set to increase November 1st, the Ontario government is also raising the Ontario Electricity Rebate (OER) from 13.1% to 23.5%. For more information about the OEB set electricity rates click here.

You can choose any of the three electricity price plans. To change from your current price plan please complete our regulated price plan election form.

Summer Time of Use Hours and Tier Thresholds

Posted June 13th, 2025

Electricity prices remain unchanged however summer Time-of-Use hours and Tiered Thresholds are in effect from May 1, 2025 - October 31, 2025.

Mail Interruption

Posted May 20th, 2025

With the work stoppage at Canada Post delivery of mail will be delayed. Customers are still responsible for paying their electricity bill on time.

Grimsby Power is recommending that you sign up for e-billing to gain access to electronic bills. By switching to paperless you will receive an email each month indicating that your eBill is available for viewing. Click here to register today.

Alternatively, you can contact our office for your account balance, by telephone: 905-945-5437 option 2 or by e-mail (please include name, account number & address): customeraccounts@grimsbypower.com.

During such an interruption, payments can be made via online banking, telephone banking, at the bank, in our office, or through our drive-thru drop box located at our office for your convenience.

Enrolling in preauthorized payment is another option would ensure your bill is paid on time.

For all payment options, please visit our payment options page.

2023 Supply Mix

Posted June 5th, 2024

The electricity supply mix is issued by the Ontario Energy Board each year.  For more details please visit 2023-supply-mix-data-update.pdf (oeb.ca).