Guillermo Flores

Ontario Power Generation/Authorized Nuclear Operator

2025 Salary

$290,783

Total compensation $302,112, including $11,329 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

#242

Ontario Power Generation

Years on List

2009–2025

Peak Salary

$290,783

2025

Full 2025 roster at Ontario Power Generation →·See where $290,783 ranks →

Total Compensation History

Total compensation, 2009–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2009–2025

$117,524 in 2009 is worth about $168,684 in 2025 dollars.

Full salary history, by year
Year	Employer	Position	Salary	Benefits	Total
2025	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$290,783Benefits $11,329Total $302,112	$11,329	$302,112
2024	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$284,216Benefits $9,656Total $293,872	$9,656	$293,872
2023	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$274,617Benefits $5,732Total $280,350	$5,732	$280,350
2022	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$238,449Benefits $5,274Total $243,722	$5,274	$243,722
2021	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$242,315Benefits $4,843Total $247,159	$4,843	$247,159
2020	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$232,735Benefits $4,442Total $237,177	$4,442	$237,177
2019	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$216,673Benefits $3,784Total $220,456	$3,784	$220,456
2018	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$205,215Benefits $5,745Total $210,960	$5,745	$210,960
2017	Ontario Power Generation	Authorized Nuclear OperatorOntario Power Generation	$181,235Benefits $6,314Total $187,550	$6,314	$187,550
2016	Ontario Power Generation	Authorized Nuclear Operator in Training - Nuclear OperatorOntario Power Generation	$167,713Benefits $1,710Total $169,423	$1,710	$169,423
2015	Ontario Power Generation	Authorized Nuclear Operator in Training - Nuclear OperatorOntario Power Generation	$147,441Benefits $1,687Total $149,128	$1,687	$149,128
2014	Ontario Power Generation	Authorized Nuclear Operator in Training - Nuclear OperatorOntario Power Generation	$132,327Benefits $1,617Total $133,944	$1,617	$133,944
2013	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$137,158Benefits $1,431Total $138,589	$1,431	$138,589
2012	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$138,207Benefits $1,413Total $139,620	$1,413	$139,620
2011	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$116,289Benefits $1,397Total $117,686	$1,397	$117,686
2010	Ontario Power Generation	Nuclear Operator in TrainingOntario Power Generation	$105,451Benefits $1,310Total $106,761	$1,310	$106,761
2009	Ontario Power Generation	Nuclear Operator in TrainingOntario Power Generation	$117,524Benefits $1,286Total $118,810	$1,286	$118,810

Take-Home Pay
(After Tax) · 2025 estimate

Of the $290,783 Guillermo Flores earned in 2025, roughly $175,084 would remain after income tax, CPP and EI, an all-in deduction rate of about 39.8%. It is up about 2% on the $284,216 paid in 2024. Records under this name have appeared on the Sunshine List 17 years in all, first in 2009. 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: ~$175,084
Effective income-tax rate (excl. CPP/EI): ~37.9%
CPP + EI contributions: ~$5,507
All-in deduction rate (incl. CPP/EI): ~39.8%
vs. 2025 Authorized Nuclear Operator median: +1%

Where does $290,783 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