Source data
Darlington first small reactor assessment and licensing milestones
Sources checked
- 2012Environmental assessment completed
The federal decision addressed the wider proposed Darlington project. Source 1
- December 2021Reactor design selected
Ontario Power Generation selected the BWRX-300. Source 1
- October 2022Construction application filed
The application requested a licence for one reactor. Source 1
- 19 April 2024Assessment found applicable
The commission determined that a new environmental assessment was unnecessary for the selected design. Source 1
- October 2024 and January 2025Public hearing held
The commission held two parts of the construction-licence hearing. Source 1
- 4 April 2025Construction licence announced
The licence covers one reactor and is valid to 31 March 2035. Source 1
Show 1 more dates
- 23 June 2026Loan guarantee transaction announced
Canada and Ontario announced financing support for an eventual Williams Treaties First Nations minority interest. Source 2
The 2025 decision authorises construction of one reactor, with a licence running to March 2035.
Darlington first small reactor assessment and licensing milestones
The timeline follows the first reactor construction licence and a later ownership-financing announcement. The original environmental assessment covered a wider proposed project.
| Source | |||
|---|---|---|---|
| 2012 | Environmental assessment completed | The federal decision addressed the wider proposed Darlington project. | Source 1 |
| December 2021 | Reactor design selected | Ontario Power Generation selected the BWRX-300. | Source 1 |
| October 2022 | Construction application filed | The application requested a licence for one reactor. | Source 1 |
| 19 April 2024 | Assessment found applicable | The commission determined that a new environmental assessment was unnecessary for the selected design. | Source 1 |
| October 2024 and January 2025 | Public hearing held | The commission held two parts of the construction-licence hearing. | Source 1 |
| 4 April 2025 | Construction licence announced | The licence covers one reactor and is valid to 31 March 2035. | Source 1 |
| 23 June 2026 | Loan guarantee transaction announced | Canada and Ontario announced financing support for an eventual Williams Treaties First Nations minority interest. | Source 2 |