William Kawzenuk

Ontario Power Generation/Supervising Nuclear Operator First Line Manager Assistant

2025 Salary

$205,938

Total compensation $214,712, including $8,774 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

#1,498

Ontario Power Generation

Years on List

2006–2025

Peak Salary

$225,505

2024

Full 2025 roster at Ontario Power Generation →·See where $205,938 ranks →

Total Compensation History

Total compensation, 2006–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2006–2025

$101,823 in 2006 is worth about $153,248 in 2025 dollars.

Full salary history, by year
Year	Employer	Position	Salary	Benefits	Total
2025	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$205,938Benefits $8,774Total $214,712	$8,774	$214,712
2024	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$225,505Benefits $7,289Total $232,794	$7,289	$232,794
2023	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$201,143Benefits $7,114Total $208,257	$7,114	$208,257
2022	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$192,002Benefits $6,389Total $198,391	$6,389	$198,391
2021	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$190,421Benefits $5,761Total $196,182	$5,761	$196,182
2020	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$187,579Benefits $5,188Total $192,768	$5,188	$192,768
2019	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$179,852Benefits $4,516Total $184,368	$4,516	$184,368
2018	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$166,186Benefits $4,444Total $170,631	$4,444	$170,631
2017	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$142,523Benefits $4,915Total $147,439	$4,915	$147,439
2016	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$160,884Benefits $1,467Total $162,351	$1,467	$162,351
2015	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$146,259Benefits $1,458Total $147,717	$1,458	$147,717
2014	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$151,873Benefits $1,451Total $153,324	$1,451	$153,324
2013	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$184,665Benefits $1,431Total $186,096	$1,431	$186,096
2012	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$143,402Benefits $1,413Total $144,816	$1,413	$144,816
2011	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$137,515Benefits $1,397Total $138,912	$1,397	$138,912
2010	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$163,320Benefits $1,310Total $164,630	$1,310	$164,630
2009	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$136,386Benefits $1,293Total $137,680	$1,293	$137,680
2008	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$112,568Benefits $1,302Total $113,870	$1,302	$113,870
2007	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$120,444Benefits $1,171Total $121,615	$1,171	$121,615
2006	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$101,823Benefits $1,544Total $103,368	$1,544	$103,368

Take-Home Pay
(After Tax) · 2025 estimate

In 2025, William Kawzenuk's $205,938 salary works out to roughly $133,626 after income tax, CPP and EI — an all-in deduction rate of about 35.1%. It is down about 9% from the $225,505 paid in 2024. William Kawzenuk has appeared on the list 20 times since 2006. 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: ~$133,626
Effective income-tax rate (excl. CPP/EI): ~32.4%
CPP + EI contributions: ~$5,507
All-in deduction rate (incl. CPP/EI): ~35.1%
vs. 2025 Supervising Nuclear Operator, FLM Assistant median: +8%

Where does $205,938 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

Also at Ontario Power Generation, 2025
#	Name	Position	Salary	Total
1	Kenneth Hartwick	Special Advisor	$1,907,409	$1,910,992
2	Nicolle Butcher	President and Chief Executive Officer	$1,596,218	$1,598,309
3	Steve Gregoris	Chief Nuclear Officer	$1,092,855	$1,096,651
4	Aida Cipolla	Chief Financial Officer and Chief Administrative Officer	$1,013,496	$1,016,119
5	Subo Sinnathamby	Chief Projects Officer	$981,476	$985,253
6	Mark Knutson	Chief Enterprise Engineering and Chief Nuclear Engineer	$856,947	$859,793
7	Jon Franke	Senior Vice President Nuclear	$826,655	$828,637
8	Shelley Babin	Chief Operations Officer	$748,469	$750,849
9	Brenda Macdonald	Chief Commercial Officer	$727,479	$729,740
10	David Kaposi	Executive Vice President Investment Strategy and Business Development	$701,432	$703,541