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The Darlington nucler station in Ontario, Canada. Photo courtesy OPG. Ontario Power Generation has completed reconstruction work on the Darlington-2 nuclear power plant and the process to restart the unit can now begin, Ontario Power Generation said.

The restart process and reconnection to the grid are subject to regulatory approvals from the Canadian Nuclear Safety Commission and “OPG’s ability to do so safely given the current Covid-19 crisis,” a statement said.

The company said it will delay the planned start of the refurbishment of Darlington-3, scheduled to begin in May, as part of its measures to ensure stable electricity supplies during the pandemic.

“In the coming weeks, the Darlington-3 project team will determine the best time to restart the project, ensuring the required critical resources and materials are available,” the statement said.

Date: Tuesday, 31 March 2020
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The Darlington nuclear power station in Canada. The Darlington-2 nuclear power plant refurbishment project remains on budget with 95% of the work complete, and on track to meet the revised schedule, Ontario Power Generation said.

OPG said the reactor has been rebuilt and the containment restored, and the project team is reconnecting the unit to the plant and returning it to service.

In October 2019 OPG said Unit 2 would return to service by June 2020 rather than February 2020. The delay was a result of delays related to fabrication and installation of feeder tube components.

Darlington-2 is the first of the Darlington station’s four Candu units to undergo refurbishment in a project that will enable the station to continue operations until 2055. All four units are to be refurbished in a phased CAD 12.8bn ($8.9bn, €8bn) project which is scheduled for completion by 2026.

Date: Wednesday, 18 March 2020
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The first of 6,240 fuel bundles have been loaded into unit 2 at Ontario Power Generation's (OPG’s) Darlington NPP, the company said on 12 November. Darlington 2 is the first of the site's four Candu reactors to undergo refurbishment as part of a CAD12.8 billion ($9 billion) project scheduled for completion in 2026. OPG reported net income attributable to the shareholder of $319 million for the third quarter of 2019, compared with $279 million for the same quarter of 2018. Ken Hartwick, OPG President and CEO said: "Our strong financial results for the quarter once again demonstrate the high quality performance across our fleet. Within our nuclear fleet, we have seen unprecedented levels of uninterrupted generation, continuing to provide the people of Ontario with clean, reliable energy every day."

Date: Friday, 15 November 2019
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Fuel loading has begun at Darlington 2, Ontario Power Generation (OPG) has announced. The refurbishment of Darlington 3 is now expected to start in the second quarter of 2020 as the company applies lessons learned during the refurbishment of unit 2.

Date: Thursday, 14 November 2019
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The final stages of construction work on Ontario Power Generation’s Darlington-2 refurbishment project, involving the installation of lower feeders, are well under way, although the plant will now return to service by June 2020 rather than February 2020 as previously anticipated.

OPG said the potential four-month delay to the return to service of Unit 2 is a result of delays related to fabrication and installation of feeder tube components. The fabrication delays resulted in upper, middle and lower feeders being installed at the same time, creating logistical and physical challenges with overlapping work.

The impact of the Unit 2 fabrication delays has been fully resolved and will not affect future units, OPG said.

“The refurbishment of Unit 2 remains on budget and the overall budget and schedule for the 10-year refurbishment project also remains on track,” it said.

Date: Wednesday, 11 September 2019
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Canada’s Bruce Power has awarded a CAD60m ($46m) contract for specialised tools to Ontario-based ATS Automation Tooling Sytems.

Date: Tuesday, 10 July 2018
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BWXT Nuclear Energy Canada has been awarded a five-year CAD168m $130m) contract extension by Ontario Power Generation to assemble fuel bundles at its Peterborough plant.

Date: Monday, 19 March 2018
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Pressurised heavy water reactors in Canada and India have celebrated continuous operation milestones in September.

Date: Thursday, 18 September 2014
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