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Hayley Twyne

Ontario Power Generation/Senior Technical Engineer/Officer

2025 Salary

$174,074

Total compensation $177,554, including $3,480 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

#3,875

Ontario Power Generation

Years on List

13

2013–2025

Peak Salary

$193,580

2023

Full 2025 roster at Ontario Power Generation →·See where $174,074 ranks →

Total Compensation History

Total compensation by yearLine chart of 13 yearly values of total compensation, from $120,729 in 2013 to $177,554 in 2025.$100K$125K$150K$175K$200K201320152018202020232025
Total compensation, 2013–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2013–2025

$120,060 in 2013 is worth about $160,536 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Senior Technical Engineer/OfficerOntario Power Generation$174,074Benefits $3,480Total $177,554
2024Senior Technical Engineer/OfficerOntario Power Generation$177,183Benefits $3,183Total $180,366
2023Senior Technical Engineer/OfficerOntario Power Generation$193,580Benefits $2,926Total $196,506
2022Senior Technical Engineer/OfficerOntario Power Generation$150,355Benefits $4,633Total $154,988
2021Senior Technical Engineer/OfficerOntario Power Generation$163,100Benefits $4,119Total $167,219
2020Senior Technical Engineer/OfficerOntario Power Generation$140,142Benefits $2,209Total $142,352
2019Senior Technical Engineer/OfficerOntario Power Generation$126,365Benefits $1,910Total $128,275
2018Senior Technical Engineer/OfficerOntario Power Generation$124,693Benefits $2,023Total $126,716
2017Senior Technical Engineer/OfficerOntario Power Generation$127,283Benefits $703Total $127,985
2016Senior Technical Engineer/OfficerOntario Power Generation$123,510Benefits $694Total $124,204
2015Senior Technical Engineer/OfficerOntario Power Generation$120,482Benefits $688Total $121,170
2014Senior Technical Engineer / OfficerOntario Power Generation$123,020Benefits $677Total $123,697
2013Senior Technical Engineer/OfficerOntario Power Generation$120,060Benefits $669Total $120,729

Take-Home Pay
(After Tax) · 2025 estimate

Of the $174,074 Hayley Twyne earned in 2025, roughly $117,134 would remain after income tax, CPP and EI, an all-in deduction rate of about 32.7%. Within Ontario Power Generation, Hayley Twyne's total compensation of $177,554 was the #3,875 of 10,346, against a median salary of $161,066. Hayley Twyne has appeared on the list 13 times since 2013. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.

Estimated net pay
~$117,134
Effective income-tax rate (excl. CPP/EI)
~29.5%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~32.7%
vs. 2025 Senior Technical Engineer/Officer median
+12%

Where does $174,074 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) →