TOP100 2023 Report - Report - Page 16
Darlington Nuclear Refurbishment $12.8 billion
16 ReNew Canada
Substantial Completion: 2026
The commencement of the execution phase marks the joint
venture’s (JV) successful delivery of the definition phase
(2012-2016) of the project, which included the construction of a
full-scale reactor mock-up facility to simulate key elements of
the refurbishment work and the testing of specialized tooling
and to help prepare a comprehensive estimate and schedule
for the project.
A $35-million reactor vault mock-up and re-tube and feeder
replacement (RFR) was completed as part of the preliminary
phase of the refurbishment project. Led by SNC Lavalin Nuclear
(SLN) and Aecon Nuclear, the mock-up helped to train the team
for feeder and fuel channel replacements to be undertaken as
part of the overall refurbishment project.
The execution phase of the project will involve the
replacement of main reactor components using tools and
methods that were developed and tested during the project’s
definition phase, carried out by the JV.
Each of the four Darlington Candu reactors will be taken out
of service sequentially for approximately three years to allow for
the replacement of fuel channels, feeder pipes, calandria tubes
and end fittings. The overall project is scheduled for 112 months.
2022 Rank: 4
Location: Clarington, Ont.
Owner: Nalcor Energy; Ontario Power Generation
Project/Construction Manager: Aecon Group Inc./SNC-Lavalin JV (execution phase of the retube and feeder replacement)
Engineer: Wood-a WSP company (consulting)
Contractor: Generation: Andritz Hydro Canada, Astaldi
Canada, Barnard-Pennecon JV
Transmission: GE Energy (formerly Alstom Grid Canada and
Alstom Renewable Power Canada), Andritz Hydro Canada, H.J.
O’Connell Construction, Valard Construction
Other Key Players: GE Power; ABB; Amec Foster Wheeler;
Deloitte; Kiewit; Black & McDonald; Tetra Tech; BDI Canada;
Burns & McDonnell/Modus (Independant Project Oversight);
Cameco (calandria tubes and annulus spacers); Alstom
AA6Power & Transport Canada Inc. (turbine generator
refurbishment); Hatch (engineering services); Armtec;
Comtech (Project Control Consultant Services); Golder-a WSP
company (geotechnical services/environmental engineering)
Supplier: DECAST Ltd.; Laker Energy (nuclear components);
Nu-Tech Precision Metals (calandria tubes)
Legal: Blake, Cassels & Graydon; Torys (acting for the owner)