Darlington New Nuclear Project — Unit 1 — under construction

EnergieGepostet 03.10.202603.10.2026 um 22:14@EnergyDesk

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Ontario Power Generation

Beginnt am 31.08.2026

Darlington Nuclear Generating Station, Clarington, Durham Region, Ontario, Canada

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Dieser Pin folgt den Nachrichten: Er zeigt den aktuellen Stand, und hier steht, was sich geändert hat und wodurch.

Bearbeitet12.10.2026 um 3:44von @ThePinGang
Überschrift
OPG Starts Building Canada's First Grid-Scale SMR at DarlingtonDarlington New Nuclear Project — Unit 1 — under construction
Vorspann
neu geschrieben
Vorher
Ontario Power Generation began construction of the first of four 300 MW BWRX-300 small modular reactors at Darlington on 8 May 2025, a month after the CNSC licence to construct; the first unit is due in service by the end of 2030 at a cost of C$7.7 billion.
Beginn
8. Mai 202531. Aug. 2026
Ende
31. Dez. 203031. Aug. 2026
Zusammenfassung
neu geschrieben
Vorher
On 8 May 2025 Ontario gave OPG the green light to build the first of four BWRX-300 units at the Darlington New Nuclear Project, the first new nuclear build in the province in more than three decades and the first grid-scale SMR under construction in any G7 country, a month after the Canadian Nuclear Safety Commission issued the licence to construct
The first 300 MW unit is due in service by the end of 2030 (OPG had earlier anticipated the end of 2029), with the full fleet of four units producing 1,200 MW and the other three planned for the mid-2030s
Ontario's energy minister put the first unit at C$7.7 billion, C$6.1 billion for the reactor and C$1.6 billion for systems and services common to all four units; the four-unit plant is estimated at C$20.9 billion
By spring 2026 the reactor's steel-and-concrete basemat module had been lifted into the excavated, 35-metre-deep reactor shaft, shortly before 8 May 2026, a year to the day after the final investment decision
OPG submitted its licence to operate application for the first unit in March 2026 and it is under CNSC review
OPG is drawing on more than 7,000 lessons learned from the Darlington refurbishment, and a tunnel boring machine for the 3.4 km condenser cooling water tunnel was due on site for assembly in early 2026
Additional August 2026 inventory evidence
GEM August 2026 snapshot: mixed phases. 1200 MW sum of published phase ratings (ratings may mix solar DC/AC). Technologies: Nuclear.
Compare phase coverage and AC/DC, nameplate and net ratings before combining source figures. This inventory view is not extra capacity to add to the existing project total.
Inventory unit details — gem-L100000500280
Additional source view; compare phase coverage and rating conventions before combining figures.
1 (G100000500647): reported rating 300 MW; small modular reactor; status pre-construction; reported year 2030; solar rating not specified/not applicable.
2 (G100000501060): reported rating 300 MW; small modular reactor; status announced; reported year 2036; solar rating not specified/not applicable.
3 (G100000501061): reported rating 300 MW; small modular reactor; status announced; reported year 2036; solar rating not specified/not applicable.
4 (G100000501062): reported rating 300 MW; small modular reactor; status announced; reported year 2036; solar rating not specified/not applicable.
- Published project evidenceopg.com95 % SICHERHEIT
- Published project evidenceopg.com95 % SICHERHEIT
- Plant inventory or original project recordpowermag.com95 % SICHERHEIT
Bearbeitet12.10.2026 um 0:05von @ThePinGang
Zusammenfassung
neu geschrieben
Vorher
On 8 May 2025 Ontario gave OPG the green light to build the first of four BWRX-300 units at the Darlington New Nuclear Project, the first new nuclear build in the province in more than three decades and the first grid-scale SMR under construction in any G7 country, a month after the Canadian Nuclear Safety Commission issued the licence to construct
The first 300 MW unit is due in service by the end of 2030 (OPG had earlier anticipated the end of 2029), with the full fleet of four units producing 1,200 MW and the other three planned for the mid-2030s
Ontario's energy minister put the first unit at C$7.7 billion, C$6.1 billion for the reactor and C$1.6 billion for systems and services common to all four units; the four-unit plant is estimated at C$20.9 billion
By spring 2026 the reactor's steel-and-concrete basemat module had been lifted into the excavated, 35-metre-deep reactor shaft, shortly before 8 May 2026, a year to the day after the final investment decision
OPG submitted its licence to operate application for the first unit in March 2026 and it is under CNSC review
OPG is drawing on more than 7,000 lessons learned from the Darlington refurbishment, and a tunnel boring machine for the 3.4 km condenser cooling water tunnel was due on site for assembly in early 2026
Additional August 2026 inventory evidence
GEM August 2026 snapshot: mixed phases. 1200 MW sum of published phase ratings (ratings may mix solar DC/AC). Technologies: Nuclear.
Compare phase coverage and AC/DC, nameplate and net ratings before combining source figures. This inventory view is not extra capacity to add to the existing project total.
Bearbeitet11.10.2026 um 22:52von @ThePinGang
Zusammenfassung
neu geschrieben
Vorher
On 8 May 2025 Ontario gave OPG the green light to build the first of four BWRX-300 units at the Darlington New Nuclear Project, the first new nuclear build in the province in more than three decades and the first grid-scale SMR under construction in any G7 country, a month after the Canadian Nuclear Safety Commission issued the licence to construct
The first 300 MW unit is due in service by the end of 2030 (OPG had earlier anticipated the end of 2029), with the full fleet of four units producing 1,200 MW and the other three planned for the mid-2030s
Ontario's energy minister put the first unit at C$7.7 billion, C$6.1 billion for the reactor and C$1.6 billion for systems and services common to all four units; the four-unit plant is estimated at C$20.9 billion
By spring 2026 the reactor's steel-and-concrete basemat module had been lifted into the excavated, 35-metre-deep reactor shaft, shortly before 8 May 2026, a year to the day after the final investment decision
OPG submitted its licence to operate application for the first unit in March 2026 and it is under CNSC review
OPG is drawing on more than 7,000 lessons learned from the Darlington refurbishment, and a tunnel boring machine for the 3.4 km condenser cooling water tunnel was due on site for assembly in early 2026
- August 2026 generation inventory recordraw.githubusercontent.com95 % SICHERHEIT

Kommentare

Belege 395 % SICHERHEITGesamtvertrauen: 95%Wie gut die Quelle und die Belege des Pins seine Termine stützen.Gewichteter Durchschnitt, wie fest 3 Belege einschließlich der Quelle die Start- und Endzeiten des Pins stützen; ein Beleg zählt für je 180 Tage, die er älter ist als der neueste, nur halb so vielAlle Pins mit mindestens 75 % Sicherheit anzeigen

Der erste Eintrag ist immer die Quelle des Pins. Die Gesamtsicherheit ist ein gewichteter Durchschnitt, wie fest jeder Beleg die oben verwendeten Start- und Endzeiten stützt; ein Beleg zählt für je 180 Tage, die er älter ist als der neueste, nur halb so viel.

[1]95%
Plant inventory or original project record
powermag.com· Gepostet am 12. Okt. 2026· Beginn 31. Aug. 2026 ✓· 33 % der Wertung
Documented physical milestone or dated progress/reporting marker. Period-end dates represent only the reported month/quarter; they do not invent an exact operation date. Source estimates are labelled and not treated as confirmed future opening dates.
[2]95%
Published project evidence
opg.com· Hinzugefügt am 12. Okt. 2026· Hinzugefügt von@ThePinGang· 33 % der Wertung
Published project-specific cost for Darlington New Nuclear Project — Unit 1: CAD 7.7e+09. Basis: Unit 1 plus shared infrastructure; includes interest, escalation and contingency.^[1]
[3]95%
Published project evidence
opg.com· Hinzugefügt am 12. Okt. 2026· Hinzugefügt von@ThePinGang· 33 % der Wertung
Published electric generating project rating for Darlington New Nuclear Project — Unit 1: 300 MW. Basis: Operator-reported electric generating capacity; not annual energy production. Operator confirms 300 MWe per unit and summer-2026 reactor-building construction after basemat installation.^[1]

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Additional August 2026 inventory evidence

Inventory unit details — gem-L100000500280

Additional August 2026 inventory evidence

Korrektur vorschlagen

Additional August 2026 inventory evidence

Inventory unit details — gem-L100000500280

Additional August 2026 inventory evidence

Korrektur vorschlagen

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Darlington New Nuclear Project — Unit 1 — under construction

Published cost and electrical output

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