Ontario Power Generation delays first small modular reactor, cites cost overruns

North America's first commercial small modular reactor project at Ontario Power Generation's Darlington station will miss its October 2030 deadline and exceed its budget, marking another setback for the nuclear industry's push into next-gen

First covered Nov 11, 2026 · 11:00 AM PT · 1 article

Ontario Power Generation delays first small modular reactor, cites cost overruns — Image via canarymedia.com

Coverage

2h Canary Media Leading small modular nuclear reactor will be late and over budget — North America’s first small modular reactor project is running into two familiar challenges for the nuclear industry: timing and cost.

Related coverage

9h Heatmap News North America’s First SMR Project Is Running Late and Over Budget

More coverage from around the web

theglobeandmail.com Darlington small modular reactor faces delay and cost overruns, prompting OPG assessment - The Globe and Mail

worldnuclearreport.org Ontario’s Darlington SMR project to cost nearly $21-billion, significantly higher than expected

theglobeandmail.com Ontario’s Darlington SMR project to cost nearly $21-billion, significantly higher than expected - The Globe and Mail

world-nuclear-news.org OPG set to revise timeline and cost of first SMR unit - World Nuclear News

heatmap.news North America’s First SMR Project Is Running Late and Over Budget - Heatmap News

Appeared in: 2026-11-11 (#1)

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