OEB applications
Setting rates with transparency and public input
Ontario Power Generation (OPG) is the only electricity generator in the province that undergoes a public review of its rates by the Ontario Energy Board (OEB).
OPG files an application and the rates set by the OEB ensure we can continue to deliver clean, safe, and reliable energy.
As mandated by the OEB Act, these application proceedings are conducted in an open and transparent manner and OPG’s application documents are publicly disclosed on this website. We also sometimes submit applications for our facilities and operations.
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OPG Application EB-2025-0297
On Dec. 17, 2025, Ontario Power Generation Inc. (OPG) 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 Jan. 1, 2027, through Dec. 31, 2031.
A copy of the OEB’s Notice of Application and Hearing is available to read in English (PDF) and French (PDF).
- Stakeholder and Rightsholder Information Presentation (PDF)
- Learn more about how OPG is Investing in Ontario's Clean Energy Future
Exhibit A – Administrative Documents
- A1-01-01 Exhibit List Updated 20260310 (PDF)
- A1-01-02 List of Tables (PDF)
- A1-02-01 Application (PDF)
- A1-02-02 Approvals Updated 20260310 (PDF)
- A1-02-03 Certification of Evidence (PDF)
- A1-03-01 Summary of Application Updated 20260310 (PDF)
- A1-03-02 Rate-setting Framework (PDF)
- A1-03-03 Drivers of Deficiency Updated 20260310 (PDF)
- A1-03-04 Drivers of Deficiency - Regulated Hydro (PDF)
- A1-04-01 Overview of OPG Updated 20260521 (PDF)
- A1-04-02 Overview of Regulated Hydroelectric Facilities (PDF)
- A1-04-03 Overview of Nuclear Facilities (PDF)
- A1-04-04 Overview of DNNP LP Updated 20260521 (PDF)
- A1-05-01 Corporate Organizational Chart (PDF)
- A1-06-01 Summary of Legislative Framework (PDF)
- A1-08-01 Procedural Orders, Correspondence, Notices (PDF)
- A1-09-01 List of Witnesses (PDF)
- A1-09-02 Curricula Vitae of Witnesses (PDF)
- A1-10-01 Draft Issues List (PDF)
- A1-11-01 Summary of OEB Directives (PDF)
- A1-12-01 Acronyms (PDF)
- A2-01-01 Financial Summary (PDF)
- A2-02-01 Business Planning and Budgeting (PDF)
- A2-03-01 Rating Agency Reports (PDF)
Exhibit B – Rate Base
- B1-01-01 Rate Base Updated 20260424 (PDF)
- B1-01-02 Cash Working Capital (PDF)
- B2-01-01 Tables (PDF)
- B2-02-01 Tables (PDF)
- B2-03-01 Tables Updated 20260521 (PDF)
- B2-04-01 Tables Updated 20260521 (PDF)
- B2-05-01 Tables (PDF)
- B3-01-01 Tables Updated 20260310 (PDF)
- B3-02-01 Tables Updated 20260310 (PDF)
- B3-03-01 Tables Updated 20260310 (PDF)
- B3-04-01 Tables Updated 20260310 (PDF)
- B3-05-01 Tables (PDF)
Exhibit C – Capitalization, Cost of Capital and Nuclear Liabilities
Exhibit D – Capital Projects
- D1-01-01 Capital Expenditures-Regulated Hydroelectric Updated 20260521 (PDF)
- D1-01-02 Capital Projects - Regulated Hydroelectric Updated 20260521 (PDF)
- D2-01-01 Project and Portfolio Management (PDF)
- D2-01-02 Capital Expenditures-Nuclear Operations (PDF)
- D2-01-03 Capital Projects - Nuclear Updated 20260521 (PDF)
- D2-02-01 Darlington Refurbishment Program Overview (PDF)
- D2-02-02 Darlington Refurbishment Program Performance (PDF)
- D2-02-03 Darlington Refurbishment Program In-Service Amounts Updated 20260310 (PDF)
- D2-03-01 Pickering Refurbishment Program Overview Updated 20260310 (PDF)
- D2-03-02 PRP Program Structure (PDF)
- D2-03-03 PRP Major Work Bundle Structure and Contracts (PDF)
- D2-03-04 PRP Program Planning (PDF)
- D2-03-05 Pickering Refurbishment Program Scope (PDF)
- D2-03-06 Pickering Refurbishment Program Schedule (PDF)
- D2-03-07 Pickering Refurbishment Program Contingency (PDF)
- D2-03-08 Pickering Refurbishment Program Cost Updated 20260521 (PDF)
- D2-03-09 Pickering Refurbishment Program Execution (PDF)
- D2-03-10 PRP Independent Studies (PDF)
- D2-04-01 Darlington New Nuclear Project Overview Updated 20260521 (PDF)
- D2-04-02 DNNP Program Structure Updated 20260521 (PDF)
- D2-04-03 Darlington New Nuclear Program Contracts (PDF)
- D2-04-04 Darlington New Nuclear Program Planning (PDF)
- D2-04-05 Darlington New Nuclear Program Scope (PDF)
- D2-04-06 Darlington New Nuclear Program Schedule (PDF)
- D2-04-07 Darlington New Nuclear Program Contingency (PDF)
- D2-04-08 Darlington New Nuclear Program Cost Updated 20260310 (PDF)
- D2-04-09 DNNP Program Execution (PDF)
- D2-04-10 DNNP Independent Studies (PDF)
- D3-01-01 Capital Budget - Support Services Updated 20260310 (PDF)
- D3-01-02 Capital Projects - Support Services Updated 20260521 (PDF)
- D4-01-01 Capitalization Policy (PDF)
Exhibit E – Production Forecast
- E1-01-01 Production Forecast and Methodology - Regulated Hydroelectric (PDF)
- E1-01-02 Comparison of Production Forecast-Hydroelectric - Regulated Hydroelectric (PDF)
- E1-02-01 HIM SBG MRP AND MWP Updated 20260521 (PDF)
- E2-01-01 Production Forecast and Methodology (PDF)
- E2-01-02 Comparison of Production Forecasts-Nuclear Updated 20260310 (PDF)
Exhibit F – Operating Costs
- F1-01-01 Business Planning and Benchmarking Regulated Hydroelectric Updated 20260521 (PDF)
- F1-02-01 Base OM&A Regulated Hydroelectric (PDF)
- F1-02-02 Comparison of Base OM&A Reg Hydroelectric (PDF)
- F1-03-01 Project OM&A Regulated Hydroelectric Updated 20260310 (PDF)
- F1-03-02 Comparison of Project OM&A Regulated Hydroelectric Updated 20260521 (PDF)
- F1-03-03 Details of OM&A Projects-Regulated Hydroelectric (PDF)
- F1-04-01 Gross Revenue Charge Other Water Agreement Costs Regulated Hydroelectric (PDF)
- F1-04-02 Comparison of Gross Revenue Charge & Other Water Agreement Costs Regulated Hydroelectric (PDF)
- F1-05-01 OM&A Purchased Services-Regulated Hydroelectric (PDF)
- F2-01-01 Business Planning and Benchmarking-Nuclear Updated 20260521 (PDF)
- F2-02-01 Base OM&A - Nuclear Operations Updated 20260310 (PDF)
- F2-02-02 Comparison of Base OM&A_Nuclear (PDF)
- F2-03-01 Project OM&A - Nuclear (PDF)
- F2-03-02 Comparison of Project OM&A-Nuclear (PDF)
- F2-03-03 Details of OM&A Projects - Nuclear Updated 20260521 (PDF)
- F2-04-01 Outage OM&A Updated 20260521 (PDF)
- F2-04-02 Comparison of Nuclear Outage OM&A Updated 20260310 (PDF)
- F2-05-01 Nuclear Fuel Costs Updated 20260521 (PDF)
- F2-05-02 Comparison of Nuclear Fuel Costs (PDF)
- F2-06-01 OM&A Purchased Services–Nuclear Operations (PDF)
- F2-07-01 Darlington Refurbishment Program-OM&A Updated 20260310 (PDF)
- F2-08-01 Pickering Refurbishment Program-OM&A (PDF)
- F3-01-01 Allocation of Support Services Costs Updated 20260521 (PDF)
- F3-01-02 Comparison of Allocation of Support Services Costs Updated 20260310 (PDF)
- F3-01-03 Comparison of Regulatory Affairs Costs (PDF)
- F3-01-04 Cost Allocation Methodology (PDF)
- F3-02-01 Asset Service Fees Updated 20260310 (PDF)
- F3-02-02 Comparison of Asset Service Fees Updated 20260310 (PDF)
- F3-03-01 OPG Procurement Process (PDF)
- F3-03-02 OM&A Purchased Services - Support Services (PDF)
- F4-01-01 Depreciation and Amortization Updated 20260521 (PDF)
- F4-02-01 Taxes Updated 20260521 (PDF)
- F4-03-01 Compensation and Benefits Updated 20260310 (PDF)
- F4-03-02 Pension and OPEB Benefits Updated 20260310 (PDF)
- F4-04-01 Centrally Held Costs Updated 20260310 (PDF)
Exhibit G – Other Revenues
- G1-01-01 Other Revenues-Regulated Hydroelectric Updated 20260310 (PDF)
- G1-01-02 Comparison of Other Revenues-Regulated Hydroelectric Updated 20260521 (PDF)
- G2-01-01 Non-Energy Revenues - Nuclear (PDF)
- G2-01-02 Comparison of Non-Energy-Nuclear (PDF)
- G2-02-01 Bruce Generating Stations - Revenues and Costs Updated 20260310 (PDF)
Exhibit H – Deferral and Variance Accounts
Exhibit I – Determination of Payment Amounts
- I1-01-01 Summary of Rev Requirement & Rev Deficiency Updated 20260521 (PDF)
- I1-01-02 Consumer Impact (PDF)
- I1-01-03 Concurrent Cost Recovery (PDF)
- I1-02-01 Regulated Hydroelectric Payment Amount (PDF)
- I1-03-01 Nuclear Payment Amounts (PDF)
- I1-03-02 Payment Amount Shaping (PDF)
- I1-04-01 IESO Settlement Process Updated 20260521 (PDF)
Exhibit L – Interrogatory Responses
- OPG-IRR Exhibit A Updated 20260605 (PDF)
- OPG-IRR Exhibit B Updated 20260521 (PDF)
- OPG-IRR Exhibit C Updated 20260521 (PDF)
- OPG-IRR Exhibit D Part 1 D0-ED-004 to D2-AMPCO-021 Updated 20260521 (PDF)
- OPG-IRR Exhibit D Part 2 D2-AMPCO-022 to D2-AMPCO-087 Updated 20260521 (PDF)
- OPG-IRR Exhibit D Part 3 D2-AMPCO-088 to D2-CCC-047 Updated 20260521 (PDF)
- OPG-IRR Exhibit D Part 4 D2-CCC-048 to D2-ED-005 Updated 2020521 (PDF)
- OPG-IRR Exhibit D Part 5 D2-ED-008 to D2-SEC-084 Updated 20260526 (PDF)
- OPG-IRR Exhibit D Part 6 D2-SEC-085 to D2-Staff-099 Updated 20260521 (PDF)
- OPG-IRR Exhibit D Part 7 D2-Staff-100 to D4-Staff-134 Updated 20260527 (PDF)
- OPG-IRR Exhibit E Updated 20260521 (PDF)
- OPG-IRR Exhibit F Updated 20260521 (PDF)
- OPG-IRR Exhibit G Updated 20260521 (PDF)
- OPG-IRR Exhibit H Updated 20260521 (PDF)
- OPG-IRR Exhibit I Updated 20260521 (PDF)
OPG Application EB-2023-0336
On Dec. 13, 2023, OPG submitted an application to the OEB for an order or orders relating to impacts from the Market Renewal Program on prescribed generating facilities, and the disposition of balances in its deferral and variance accounts as of Dec. 31, 2022.
A copy of the OEB’s Notice of Application and Hearing is available to read in English (PDF) and French (PDF).
Exhibit A – Administrative Documents
Exhibit H – Deferral and Variance Accounts
Exhibit I – Determination of Payment Amounts
Exhibit JT – Undertakings – Technical Conference
Exhibit L – Interrogatory Responses
Exhibit M – Market Renewal Program
Exhibit O – Settlement Proposal
OPG Application EB-2023-0098
On Mar. 1, 2023, OPG applied to the OEB seeking approval to establish a variance account to record the nuclear revenue requirement impacts resulting from the Ontario Superior Court overturning the Protecting a Sustainable Public Sector for Future Generations Act, 2019 (Bill 124).
OPG Application EB-2020-0290
On Dec. 31, 2020, OPG submitted an application to the OEB requesting approval of payment amounts and riders, for the output from OPG’s prescribed hydroelectric and nuclear facilities effective, Jan. 1, 2022.
The application covers the period Jan. 1, 2022 to Dec. 31, 2026. A copy of the OEB’s Notice of Application and Hearing is available to read in English (PDF) and French (PDF).
Exhibit A – Administrative Documents
- A1-01-01 Exhibit List - Updated 20210723 (PDF)
- A1-01-02 List of Tables (PDF)
- A1-02-01 Application (PDF)
- A1-02-02 Approvals - Updated 20210312 (PDF)
- A1-03-01 Summary of Application - Updated 20210312 (PDF)
- A1-03-02 Rate-setting Framework (PDF)
- A1-03-03 Drivers of Deficiency (PDF)
- A1-04-01 Overview of OPG (PDF)
- A1-04-02 Overview of Regulated Hydroelectric Facilities (PDF)
- A1-04-03 Overview of Nuclear Facilities (PDF)
- A1-05-01 Corporate Organizational Chart (PDF)
- A1-06-01 Summary of Legislative Framework (PDF)
- A1-08-01 Procedural Orders, Correspondence, Notices (PDF)
- A1-09-01 List of Witnesses Updated 20210723 (PDF)
- A1-09-02 Curricula Vitae Updated 20210723 (PDF)
- A1-10-01 Draft Issues List (PDF)
- A1-11-01 Summary of OEB Directives (PDF)
- A1-12-01 Acronyms_PDFA (PDF)
- A2-01-01 Financial Summary (PDF)
- A2-02-01 Business Planning and Budgeting Updated 20210709 (PDF)
- A2-03-01 Rating Agency Reports (PDF)
Exhibit B – Rate Base
Exhibit C – Capitalization, Cost of Capital and Nuclear Liabilities
Exhibit D – Capital Projects
- D2-01-01 Project and Portfolio Management-Nuclear (PDF)
- D2-01-02 Capital Expenditures-Nuclear Operations - Updated 20210429 (PDF)
- D2-01-03 Capital Projects - Nuclear Updated 20210709 (PDF)
- D2-01-03 Attachment 1 Tabs 1-10 (PDF)
- D2-01-03 Attachment 1 Tabs 11-30 (PDF)
- D2-01-03 Attachment 1 Tabs 31-40 (PDF)
- D2-01-03 Attachment 1 Tabs 41-54 (PDF)
- D2-01-03 Attachment 1 Tabs 55-62 (PDF)
- D2-01-03 Attachment 1 Tabs 63-72 (PDF)
- D2-01-03 Attachment 2_Redacted (PDF)
- D2-02-01 Darlington Refurbishment Program Overview (PDF)
- D2-02-02 Unit 2 Performance (PDF)
- D2-02-03 Remaining Units Planning (PDF)
- D2-02-04 Contracts_PDFA (PDF)
- D2-02-04 Attachments 1-10 - Updated 20210312 (PDF)
- D2-02-04 Attachments 11-13 (PDF)
- D2-02-04 Attachments 14-15 (PDF)
- D2-02-04 Attachments 16-21 (PDF)
- D2-02-05 Remaining Units Schedule (PDF)
- D2-02-06 Remaining Units Contingency (PDF)
- D2-02-07 Remaining Units Cost (PDF)
- D2-02-08 Program Structure and Oversight (PDF)
- D2-02-09 In-Service Amounts (PDF)
- D2-02-10 D2O Storage Project (PDF)
- D2-02-10 Attachment 1 (PDF)
- D2-02-10 Attachment 2a-q (PDF)
- D2-02-10 Attachment 3_PDFA (PDF)
- D2-02-10 Attachment 4_PDFA (PDF)
- D2-02-10 Attachment 5_PDFA (PDF)
- D2-02-11 Independent Studies (PDF)
- D3-01-01 Capital Budget - Support Services - Updated 20210429 (PDF)
- D3-01-02 Capital Projects - Support Services_Redacted - Updated 20210709 (PDF)
- D4-01-01 Capitalization Policy (PDF)
Exhibit E – Production Forecast
Exhibit F – Operating Costs
- F2-01-01 Business Planning and Benchmarking-Nuclear - Updated 20210429 (PDF)
- F2-02-01 Base OM&A - Nuclear Operations - Updated 20210312 (PDF)
- F2-02-02 Comparison of Base OM&A_Nuclear (PDF)
- F2-03-01 Project OM&A - Nuclear (PDF)
- F2-03-02 Comparison of Project OM&A-Nuclear (PDF)
- F2-03-03 Details of OM&A Projects - Nuclear (PDF)
- F2-04-01 Outage OM&A - Nuclear (PDF)
- F2-04-02 Comparison of Nuclear Outage OM&A (PDF)
- F2-05-01 Nuclear Fuel Costs Updated 20210709 (PDF)
- F2-05-02 Comparison of Nuclear Fuel Costs (PDF)
- F2-06-01 OM&A Purchased Services–Nuclear Operations (PDF)
- F2-07-01 Darlington Refurbishment Program-OM&A (PDF)
- F2-08-01 New Nuclear at Darlington - OM&A (PDF)
- F3-01-01 Allocation of Support Services Costs - Updated 20210319 (PDF)
- F3-01-02 Comparison of Allocation of Support Services Costs Updated 20210709 (PDF)
- F3-01-03 Comparison of Regulatory Affairs Costs (PDF)
- F3-01-04 Cost Allocation Methodology - Updated 20210429 (PDF)
- F3-02-01 Asset Service Fees Updated 20210709 (PDF)
- F3-02-02 Comparison of Asset Service Fees (PDF)
- F3-03-01 OPG Procurement Process (PDF)
- F3-03-02 OM&A Purchased Services - Support Services - Updated 20210312 (PDF)
- F4-01-01 Depreciation and Amortization - Updated 20210429 (PDF)
- F4-02-01 Taxes - Updated 20210312 (PDF)
- F4-03-01 Compensation and Benefits - Updated 20210709 (PDF)
- F4-03-02 Pension and OPEB Benefits (PDF)
- F4-04-01 Centrally Held Costs (PDF)
- F4-04-02 Tables (PDF)
Exhibit G – Other Revenues
Exhibit H – Deferral and Variance Accounts
Exhibit I – Determination of Payment Amounts
- I1-01-01 Summary of Rev Requirement & Rev Deficiency - Updated 20210429 (PDF)
- I1-01-02 Consumer Impact - Updated 20210312 (PDF)
- I1-02-01 Regulated Hydroelectric Payment Amount (PDF)
- I1-03-01 Nuclear Payment Amounts - Updated 20210312 (PDF)
- I1-03-02 Payment Amount Smoothing - Updated 20210429 (PDF)
- I1-04-01 IESO Settlement Process (PDF)
Exhibit J – Undertakings
Exhibit JT – Undertakings – Technical Conference
Exhibit L – Interrogatory Responses
- OPG IRR Exhibit A1 A2 Updated 20210723 (PDF)
- OPG IRR Exhibit B1 B3 20210429 (PDF)
- OPG IRR Exhibit C1 C2 Updated 20210709 (PDF)
- OPG IRR Exhibit D2-01 Part 1 of 2 Updated 20210709 (PDF)
- OPG IRR Exhibit D2-01 Part 2 of 2 Updated 20210709 (PDF)
- OPG IRR Exhibit D2-02 Part 1 of 9 20210922 (PDF)
- OPG IRR Exhibit D2-02 Part 1a of 9 AMPCO-079 Updated 20210629 (PDF)
- OPG IRR Exhibit D2-02 Part 2 of 9 Updated 20210709 (PDF)
- OPG IRR Exhibit D2-02 Part 3 of 9 20210419 (PDF)
- OPG IRR Exhibit D2-02 Part 4 of 9 20210419 (PDF)
- OPG IRR Exhibit D2-02 Part 5 of 9 20210419 (PDF)
- OPG IRR Exhibit D2-02 Part 6 of 9 20210419 (PDF)
- OPG IRR Exhibit D2-02 Part 7 of 9 20210419 (PDF)
- OPG IRR Exhibit D2-02 Part 8 of 9 20210528 (PDF)
- OPG IRR Exhibit D2-02 Part 9 of 9 Updated 20210813 (PDF)
- OPG IRR Exhibit D3 D4 Updated 20210709 (PDF)
- OPG IRR Exhibit E2 20210419 (PDF)
- OPG IRR Exhibit F2 F3 F4 Updated 20210728 (PDF)
- OPG IRR Exhibit G2 20210426 (PDF)
- OPG IRR Exhibit H1 Updated 20210709 (PDF)
- OPG IRR Exhibit I1 Updated 20210709 (PDF)
Exhibit O – Settlement Proposal
Argument-in-Chief
Reply Argument
Letter of Comment
Indigenous and Stakeholder Information Session
OPG is preparing an application to the Ontario Energy Board (OEB) for new payment amounts and riders for its regulated facilities effective January 1, 2022. On December 17, 2020, OPG held an Indigenous and Stakeholder Information Session and provided an overview of the application. Presentation materials are below.
OPG Application EB-2020-0210
On Sept. 1, 2020, OPG applied to the Ontario Energy Board for an Order Seeking Approval and Implementation of the 2021 Hydroelectric Payment Amount Effective Jan. 1, 2021.
Exhibit A – Administrative Documents
Exhibit I – Determination of Riders
OPG Application EB-2018-0243
On Aug. 9, 2018, OPG applied to the Ontario Energy Board for an Order Seeking Approval and Implementation of the 2019 Hydroelectric Payment Amount Effective Jan. 1, 2019 and Approval to Clear the Approved Balances as of Dec. 31, 2017 in its Deferral and Variance Accounts.
Exhibit A – Administrative Documents
Exhibit F – Pension and OPEB
Exhibit H – Deferral and Variance Accounts
Exhibit I – Determination of Riders
Exhibit J – Undertakings
Exhibit L – Interrogatory Responses
Exhibit M – Settlement Proposal
OPG Application EB-2019-0209
On Sept. 4, 2019, OPG applied to the Ontario Energy Board for an Order Seeking Approval and Implementation of the 2020 Hydroelectric Payment Amount Effective Jan. 1, 2020.
Exhibit A – Administrative Documents
Exhibit I – Determination of Riders
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