Rolphton NPD
Permanently Shut DownRolphton, ON·CANDU
Reactor Data
Reactor Units
Every power reactor at this site as listed in the IAEA Power Reactor Information System (PRIS): reactor type and model, net electrical capacity, grid connection and commercial operation dates, and current status.
1 unit: 1 permanent shutdown.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Rolphton NPD | PHWR | CANDU | 22 | 1958-01-01 | 1962-06-04 | 1962-10-01 | 1987-08-01 | Permanent Shutdown |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Rolphton NPD | 17 | 25 | 92 | 1962-04-11 | CANADIAN GENERAL ELECTRIC | GENERAL ELECTRIC COMPANY (UK) |
Lifetime performance, through 2025
| Unit | Electricity Supplied | Load Factor | Energy Availability | Operating Factor |
|---|---|---|---|---|
| Rolphton NPD | 3.2 TWh | 66.7% | 69.0% | 72.0% |
Operator: ONTARIO HYDRO
Owner: NUCLEAR PORTION: AECL ; CONVENTIONAL PORTION: ONTARIO HYDRO
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-12.
Working Here
Per Diem Rates FY 2026
Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from the U.S. State Department foreign per diem tables for FY 2026.
$167
Lodging/Night
$120
M&IE/Day
$287
Total/Day
Canada: rate for locations the State Department does not list separately
U.S. Department of State foreign per diem, for U.S. government and contractor travel.
Photos
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Facility Map
Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.
46.2029, -77.7084
Location & Contact
Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
NukeWorker Member Ratings 2 votes
Community ratings from NukeWorker members. Vote to share your experience working at this facility. Score uses a Bayesian average that accounts for vote count — facilities with few votes are pulled toward the fleet average, so rankings reflect confidence, not just raw percentages.
Above Average
1 (50%)
Below Average
1 (50%)
Plant Facts
Technical Specs
Reactor design specifications including type (PWR/BWR), containment design, nuclear steam supply system manufacturer, thermal and electrical power ratings, and current operational status.
Reactor Type:
CANDU