Robert Semenzow

Ontario Power Generation/First Line Manager, Inspection and Maintenance

At a Glance
2025

Latest Salary

$274,899

2025

Total Compensation

$283,142

Incl. $8,244 benefits

Employer Rank

#344

Ontario Power Generation

Years on List

2007–2025

Salary History

Full History
2007–2025

Year	Employer	Position	Salary	Benefits	Total
2025	Ontario Power Generation	First Line Manager, Inspection and Maintenance	$274,899	$8,244	$283,142
2024	Ontario Power Generation	First Line Manager, Inspection and Maintenance	$261,394	$6,914	$268,307
2023	Ontario Power Generation	—	$241,542	$6,685	$248,226
2022	Ontario Power Generation	First Line Manager, Control/Mechanical	$250,348	$5,949	$256,297
2021	Ontario Power Generation	First Line Manager, Control/Mechanical	$230,070	$5,278	$235,348
2020	Ontario Power Generation	First Line Manager, Control/Mechanical	$180,388	$4,665	$185,053
2019	Ontario Power Generation	First Line Manager, Control/Mechanical	$181,929	$3,956	$185,885
2018	Ontario Power Generation	First Line Manager, Control/Mechanical	$184,396	$3,938	$188,333
2017	Ontario Power Generation	First Line Manager, Control/Mechanical	$167,254	$5,137	$172,391
2016	Ontario Power Generation	First Line Manager, Control/Mechanical	$164,922	$1,560	$166,483
2015	Ontario Power Generation	Electrical & Control Technician	$157,767	$1,476	$159,242
2014	Ontario Power Generation	Electrical and Control Technician	$151,103	$1,469	$152,572
2013	Ontario Power Generation	Electrical & Control Technician	$134,092	$1,451	$135,542
2012	Ontario Power Generation	Electrical & Control Technician	$130,495	$1,430	$131,925
2011	Ontario Power Generation	Electrical & Control Technician	$133,121	$1,414	$134,535
2010	Ontario Power Generation	Electrical & Control Technician	$151,867	$1,312	$153,179
2007	Ontario Power Generation	Shift Control Technician	$120,442	$1,092	$121,534

Take-Home Pay
(After Tax) · 2025 estimate

In 2025, Robert Semenzow's $274,899 salary works out to roughly $167,703 after income tax, CPP and EI — an effective rate of about 37.0%. That is about 38% above the 2025 median of $199,124 for First Line Manager Inspection Maintenance on the Sunshine List. The name has been on the Sunshine List 17 years in all, first in 2007. 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: ~$167,703
Effective income-tax rate (excl. CPP/EI): ~37.0%
CPP + EI contributions: ~$5,507
vs. 2025 First Line Manager Inspection Maintenance median: +38%

Where does $274,899 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

#	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