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Planned Maintenance Outage Request

Please note: This form is for use by commercial and business customers only. Residential customers who would like to arrange a disconnection or service upgrade should contact Technical Services by email at

Customers and contractors occasionally require a temporary disconnection from their Guelph Hydro services to allow them to safely perform station maintenance on electrical items such as customer-owned transformers and high-voltage primary switchgear.

Guelph Hydro policy is such that we will only allow Guelph Hydro staff to break an electrical connection from our network.  To request a temporary interruption to the electrical service, please complete the online form below.  A member of our team will contact you regarding your request.

Request for Temporary Disconnection to Electrical Service:

Terms & Conditions

By submitting this online service request, the customer/contractor agrees to the following:

  • Guelph Hydro Electric Systems Inc. (GHESI) personnel will not operate customer owned equipment
  • Customer/Contractor must be Work Protection Code (UWPC) certified and have proper Personal Protective Equipment (PPE)
  • Cancellation / Reschedule - If the work is cancelled or rescheduled less than two business days in advance, GHESI charges shall apply
  • For all work scheduled after regular business hours, GHESI overtime charges will apply and a purchase order is required prior to crew scheduling
  • For all planned interruptions, Electrical Safety Authority connection authorization is required prior to service reconnection


The personal information provided on this will form will be used by Guelph Hydro Electric Systems Inc. to provide the services outlined on the form.  By submitting this form, you hereby consent to the collection, retention and use of this information by Guelph Hydro Electric Systems Inc., in accordance with its Privacy Policy.

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