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Sheldon Masson

Ontario Power Generation/Senior Manager, Maintenance/Production

2025 Salary

$230,425

Total compensation $231,910, including $1,485 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

#956

Ontario Power Generation

Years on List

15

2010–2025

Peak Salary

$230,425

2025

Full 2025 roster at Ontario Power Generation·See where $230,425 ranks →

Total Compensation History

Total compensation by yearLine chart of 15 yearly values of total compensation, from $103,807 in 2010 to $231,910 in 2025. No data for 2011.$100K$150K$200K$250K201020142016202020222025
Total compensation, 2010–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
20102025

$102,089 in 2010 is worth about $143,889 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Senior Manager, Maintenance/ProductionOntario Power Generation$230,425
2024Senior Manager, Maintenance/ProductionOntario Power Generation$204,184
2023Senior Manager, Maintenance/ProductionOntario Power Generation$198,222
2022Senior Manager, Maintenance/ProductionOntario Power Generation$172,094
2021Senior Manager, Maintenance/ProductionOntario Power Generation$169,544
2020Trades Management Supervisor- MaintenanceOntario Power Generation$148,531
2019Trades Management Supervisor- MaintenanceOntario Power Generation$136,393
2018Trades Management Supervisor- MaintenanceOntario Power Generation$131,501
2017Trades Management Supervisor- MaintenanceOntario Power Generation$128,551
2016Trades Management Supervisor, HydroelectricOntario Power Generation$120,977
2015Trades Management Supervisor, HydroelectricOntario Power Generation$114,834
2014Electrical and Control Technician / TechnologistOntario Power Generation$109,776
2013Electrical & Control Technician/TechnologistOntario Power Generation$114,028
2012Electrical & Control Technician/TechnologistOntario Power Generation$101,864
2010Electrical & Control Technician/TechnologistOntario Power Generation$102,089

Take-Home Pay
(After Tax) · 2025 estimate

Sheldon Masson was paid $230,425 in 2025; after income tax, CPP and EI that is roughly $146,146, an effective income-tax rate of about 34.2%. Compared with 2024, when the figure was $204,184, that is a rise of about 13%. Records under this name have appeared on the Sunshine List 15 years in all, first in 2010. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.

Estimated net pay
~$146,146
Effective income-tax rate (excl. CPP/EI)
~34.2%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~36.6%
vs. 2025 Senior Manager Maintenance Production median
+8%

Where does $230,425 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) →