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Thanasis Triantafillos

Ontario Power Generation/Nuclear Security Officer First Line Manager Assistant

2025 Salary

$154,235

Total compensation $160,813, including $6,578 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

#5,649

Ontario Power Generation

Years on List

10

2016–2025

Peak Salary

$154,235

2025

Full 2025 roster at Ontario Power Generation →·See where $154,235 ranks →

Total Compensation History

Total compensation by yearLine chart of 10 yearly values of total compensation, from $106,919 in 2016 to $160,813 in 2025.$100K$120K$140K$160K$180K201620182020202120232025
Total compensation, 2016–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2016–2025

$105,678 in 2016 is worth about $135,143 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Nuclear Security Officer First Line Manager AssistantOntario Power Generation$154,235Benefits $6,578Total $160,813
2024Nuclear Security Officer First Line Manager AssistantOntario Power Generation$141,282Benefits $5,555Total $146,838
2023Nuclear Security OfficerOntario Power Generation$142,787Benefits $5,399Total $148,186
2022Nuclear Security OfficerOntario Power Generation$133,029Benefits $4,863Total $137,892
2021Nuclear Security OfficerOntario Power Generation$125,799Benefits $4,392Total $130,191
2020Nuclear Security OfficerOntario Power Generation$125,831Benefits $3,965Total $129,796
2019Nuclear Security OfficerOntario Power Generation$115,144Benefits $3,464Total $118,609
2018Nuclear Security OfficerOntario Power Generation$108,523Benefits $3,470Total $111,993
2017Nuclear Security OfficerOntario Power Generation$108,677Benefits $3,822Total $112,499
2016Nuclear Security OfficerOntario Power Generation$105,678Benefits $1,241Total $106,919

Take-Home Pay
(After Tax) · 2025 estimate

Of the $154,235 Thanasis Triantafillos earned in 2025, roughly $106,216 would remain after income tax, CPP and EI, an all-in deduction rate of about 31.1%. At Ontario Power Generation, 10,346 people made the 2025 list with a median salary of $161,066; Thanasis Triantafillos's total compensation of $160,813 ranked #5,649. 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
~$106,216
Effective income-tax rate (excl. CPP/EI)
~27.6%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~31.1%
vs. 2025 Nuclear Security Officer First Line Manager Assistant median
−3%

Where does $154,235 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.

Also at Ontario Power Generation
2025

View all 10,346 employees at Ontario Power Generation (2025) →