Derek Johnston
Ontario Power Generation/Supervising Nuclear Operator First Line Manager Assistant
2025 Salary
$198,709Total compensation $203,667, including $4,958 in taxable benefits.
Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page
At a Glance
2025
Employer Rank
#2,012Ontario Power Generation
Years on List
72019–2025
Peak Salary
$198,7092025
Full 2025 roster at Ontario Power Generation →·See where $198,709 ranks →
Total Compensation History
Full History
2019–2025
$122,453 in 2019 is worth about $147,844 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation | $198,709Benefits $4,958Total $203,667 |
| 2024 | Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation | $173,310Benefits $4,284Total $177,594 |
| 2023 | Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation | $178,436Benefits $4,188Total $182,624 |
| 2022 | Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation | $150,857Benefits $3,748Total $154,606 |
| 2021 | Nuclear OperatorOntario Power Generation | $156,470Benefits $3,382Total $159,852 |
| 2020 | Nuclear OperatorOntario Power Generation | $142,370Benefits $3,062Total $145,432 |
| 2019 | Nuclear OperatorOntario Power Generation | $122,453Benefits $2,699Total $125,152 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Derek Johnston's 2025 salary of $198,709 comes to roughly $130,038 once federal and Ontario income tax (about 31.8% effective) is deducted. On total compensation of $203,667, Derek Johnston ranked #2,012 of 10,346 disclosed at Ontario Power Generation that year, where the median salary was $161,066. Derek Johnston has appeared on the list 7 times since 2019. Members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less after pension contributions, which this estimate leaves out.
- Estimated net pay
- ~$130,038
- Effective income-tax rate (excl. CPP/EI)
- ~31.8%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~34.6%
- vs. 2025 Supervising Nuclear Operator, FLM Assistant median
- +4%
Where does $198,709 rank on the Sunshine List? →
Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.