References 495% CONFIDENCEOverall confidence: 95%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]95%Plant inventory or original project recordpowermag.com· Posted Oct 12, 2026· Starts Dec 31, 2030 ✓· 25% of score
Published target: Grid connection by end of 2030. Construction is documented, but this future completion/operation milestone is estimated. The date is a year/month-end timeline marker and is not a confirmed exact opening day. Source: https://www.opg[3][4].com/projects-services/projects/nuclear/smr/darlington-smr/
- [2]95%Darlington New Nuclear Project — Unit 1 — project media source
Darlington New Nuclear Project aerial site view published by Canada’s Major Projects Office. Photo capture date is not stated on the page; the wider site should not be read as proof that all four reactors are under construction.
- [3]95%Published project evidence
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]
- [4]95%Published project evidence
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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