Ontario Power Generation Inc. and DNNP LP – 2027-2031 payment amounts

Ontario Power Generation Inc.
EB-2025-0297

Ontario Power Generation Inc. and DNNP LP have applied to set payment amounts for the output from regulated hydroelectric and nuclear generating stations effective January 1, 2027.

Ontario Power Generation Inc. (OPG) has applied to the Ontario Energy Board to set the amount charged for the output of its regulated hydroelectric generating facilities and, with its co-applicant DNNP LP, to set the amount charged for the output of its regulated nuclear generating facilities, including the Darlington New Nuclear Program facilities. The application covers the five-year period beginning January 1, 2027, through December 31, 2031. In its application, OPG has calculated that the monthly bill for a typical residential customer using 750 kWh of electricity per month would increase by the following amounts, if approved:

20272028202920302031
$7.94$2.45$1.37$0.74$4.67

Other customers, including businesses, would be affected as well.

The payment amounts include the costs of refurbishing Units 5-8 at the Pickering Nuclear Generating Station and constructing the Darlington New Nuclear Program facilities during the five-year period.

The application also includes requests for the following approvals, amongst others:

  • Of custom frameworks to set the hydroelectric and nuclear payment amounts
  • To change OPG’s capital structure and establish DNNP LP’s capital structure
  • To dispose of the December 31, 2024, balances of certain deferral and variance accounts
  • To establish new deferral and variance accounts, including new accounts for the Darlington New Nuclear Program facilities
  • Of an annual process to recover interest amounts associated with capital costs for refurbishing Pickering B and constructing the Darlington New Nuclear Program facilities

Type: Rates

This application will be heard using the Cost-Based >$500 million Revenue Requirement performance standard (pdf). View an expanded timeline (pdf) of the procedural steps for this Rates application.

Find out more about OEB Performance Standards for Processing Applications and use the Application Planning Tool to assist you with an estimate of the milestones in this proceeding.

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Or mail the below address with the reference number EB-2025-0297

Ontario Energy Board
P.O. Box 2319
2300 Yonge Street, 27th Floor
Toronto ON M4P 1E4
Attn: Registrar