Colin Holdaway

Ontario Power Generation/Authorized Nuclear Operator

At a Glance
2025

Latest Salary

$282,705

2025

Total Compensation

$290,194

Incl. $7,490 benefits

Employer Rank

#301

Ontario Power Generation

Years on List

2007–2025

Salary History

Full History
2007–2025

Year	Employer	Position	Salary	Benefits	Total
2025	Ontario Power Generation	Authorized Nuclear Operator	$282,705	$7,490	$290,194
2024	Ontario Power Generation	Authorized Nuclear Operator	$285,098	$6,551	$291,650
2023	Ontario Power Generation	—	$284,520	$6,300	$290,821
2022	Ontario Power Generation	Authorized Nuclear Operator	$258,434	$5,799	$264,233
2021	Ontario Power Generation	Authorized Nuclear Operator	$246,088	$8,467	$254,555
2020	Ontario Power Generation	Authorized Nuclear Operator	$249,783	$7,582	$257,365
2019	Ontario Power Generation	Authorized Nuclear Operator	$229,823	$6,491	$236,314
2018	Ontario Power Generation	Authorized Nuclear Operator	$227,395	$6,546	$233,941
2017	Ontario Power Generation	Authorized Nuclear Operator	$209,133	$7,252	$216,385
2016	Ontario Power Generation	Authorized Nuclear Operator	$227,349	$1,844	$229,192
2015	Ontario Power Generation	Authorized Nuclear Operator	$201,518	$1,807	$203,325
2014	Ontario Power Generation	Authorized Nuclear Operator	$189,929	$1,795	$191,724
2013	Ontario Power Generation	Authorized Nuclear Operator	$160,841	$1,683	$162,524
2012	Ontario Power Generation	Authorized Nuclear Operator in Training, Nuclear Operator	$139,507	$1,645	$141,153
2011	Ontario Power Generation	Authorized Nuclear Operator in Training, Nuclear Operator	$138,797	$1,609	$140,406
2010	Ontario Power Generation	Authorized Nuclear Operator in Training, Nuclear Operator	$150,751	$1,474	$152,225
2009	Ontario Power Generation	Authorized Nuclear Operator in Training, Nuclear Operator	$117,624	$1,293	$118,917
2008	Ontario Power Generation	Nuclear Operator	$114,177	$1,302	$115,479
2007	Ontario Power Generation	Nuclear Operator	$106,852	$1,171	$108,023

Take-Home Pay
(After Tax) · 2025 estimate

In 2025, Colin Holdaway's $282,705 salary works out to roughly $171,331 after federal and Ontario income tax — an effective rate of about 37.4%. It ranks #301 of 10,346 disclosed at Ontario Power Generation that year, where the median was $161,066. That is about 1% less than the $285,098 paid in 2024. 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: ~$171,331
Effective income-tax rate (excl. CPP/EI): ~37.4%
CPP + EI contributions: ~$5,507
vs. 2025 Authorized Nuclear Operator median: −1%

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