Canada · Public Sector Salary DisclosureEdition 2025
MP
On the 2025 Sunshine List · 7 years

Mason Patterson

Plant Engineer/Officer · Ontario Power Generation
Plant Engineer/OfficerOntarioFirst listed 2019
2025 Total Compensation Paid
$150,737.48
▲ 31.3% since 2019

Mason Patterson was paid $150,737.48 in total compensation as Plant Engineer/Officer at Ontario Power Generation in 2025, 51% above Ontario's $100,000.00 Sunshine List threshold.

Mason Patterson has appeared on the Ontario Sunshine List 7 times since 2019, earning $1.0M in combined disclosed pay — an average of $149,424.00 a year, up 31% over that span.

That is 11% below the average disclosed pay of $170,201.67 across 10,346 listed Ontario Power Generation employees.

$150,737.48
Latest compensation
in 2025
$1.0M
Total compensation
across 7 years
$149,424.00
Average / year
while on Sunshine List
+31.3%
Career growth
since 2019
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FIG. 01

7 years on the list

Annual total compensation (CAD) — hover to inspect.

$100K$127K$153K$180K$207K2019202020212022202320242025
FIG. 02

The career in numbers

Totals, averages, and the biggest moves — all total compensation.

A career, year by year.

How Mason Patterson's total compensation has moved across 7 years on the Ontario Sunshine List.

Highest year2022 · $196,707.15
Lifetime total compensation$1.0M
Annual average$149,424.00
Total growth since 2019+31.3%
Biggest raise+23.2% (2022)
Biggest drop-31.2% (2023)
FIG. 03

Year-by-year history

7 years on the Sunshine List.

YearPositionTotal CompensationChange
2025Latest
Plant Engineer/Officer$150,737.48▼ 4.6%
2024
Plant Engineer/Officer$157,992.57▲ 16.7%
2023
$135,416.36▼ 31.2%
2022★ Best
Plant Engineer/Officer↑ role changed$196,707.15▲ 23.2%
2021
Associate Engineer/Scientist/Technical Officer$159,640.78▲ 22.1%
2020
Associate Engineer/Scientist/Technical Officer$130,705.70▲ 13.9%
2019First
Associate Engineer/Scientist/Technical Officer$114,764.84
7 years total$1.0M total$149,424.00 avg
FIG. 04

The record

Source data and how to request a correction.

Employee details

Position
Plant Engineer/Officer
Sector
Province
Ontario
First appeared
2019
Latest disclosure
2025
Years on list
7

Data source

Salary data is published annually by the Ontario government under the Public Sector Salary Disclosure Act. Only employees earning $100,000+ are disclosed.

Name removal

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