● OPSCI.ca Ontario · 2010–2025

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Hydro One and Ontario Power Generation

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Fastest movers 50+ on the role

Operating Technician 65 people +13.5%
Project Manager 130 people +10.3%
Senior Manager 158 people +9.1%
Procurement Specialist 82 people +7.5%

Same person, same role, consecutive years — not a raw average.

Most common positions 2025 disclosed employees

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50 position(s) (showing top 50 by disclosed employees)

PositionSectorDisclosed Emp.Avg. total comp
Nuclear Operator Hydro One and Ontario Power Generation 781 $190,449
Electrical and Control Technician Hydro One and Ontario Power Generation 576 $175,038
Senior Technical Engineer Hydro One and Ontario Power Generation 464 $161,309
Mechanical Technician Hydro One and Ontario Power Generation 406 $167,998
Civil Maintainer Hydro One and Ontario Power Generation 300 $137,505
Foreman Hydro One and Ontario Power Generation 276 $155,964
Mechanic Hydro One and Ontario Power Generation 270 $182,872
Control Technician Hydro One and Ontario Power Generation 260 $156,753
Nuclear Security Officer Hydro One and Ontario Power Generation 260 $144,415
Mechanical Technician and Technologist Hydro One and Ontario Power Generation 253 $158,076
Project Leader Hydro One and Ontario Power Generation 229 $153,208
Supervising Nuclear Operator First Line Manager Assistant Hydro One and Ontario Power Generation 199 $200,312
Assistant Technical Engineer Hydro One and Ontario Power Generation 197 $120,649
Senior Manager Hydro One and Ontario Power Generation 158 $205,387
Senior Engineer Hydro One and Ontario Power Generation 150 $156,835
First Line Manager Hydro One and Ontario Power Generation 139 $228,161
Project Manager Hydro One and Ontario Power Generation 130 $174,457
Scientist Hydro One and Ontario Power Generation 115 $164,149
Technical Engineer Hydro One and Ontario Power Generation 105 $134,732
Work Control Team Leader Hydro One and Ontario Power Generation 102 $196,529
Radiation Protection Technician Hydro One and Ontario Power Generation 91 $139,207
Field Shift Operating Supervisor Hydro One and Ontario Power Generation 85 $231,100
Service Trades Maintainer Hydro One and Ontario Power Generation 85 $128,898
Senior Advisor Hydro One and Ontario Power Generation 83 $174,437
Technician Hydro One and Ontario Power Generation 83 $165,496
Procurement Specialist Hydro One and Ontario Power Generation 82 $147,430
Chemical Technician Hydro One and Ontario Power Generation 80 $159,847
Emergency Response Maintainer Hydro One and Ontario Power Generation 75 $140,260
Hydroelectric Operating Technician Hydro One and Ontario Power Generation 71 $167,081
Operating Technician Hydro One and Ontario Power Generation 65 $193,402
Electrician Foreman Hydro One and Ontario Power Generation 64 $161,994
Section Manager Nuclear Engineering Hydro One and Ontario Power Generation 64 $155,330
Technologist Hydro One and Ontario Power Generation 55 $148,264
Trades Management Supervisor Hydro One and Ontario Power Generation 53 $198,381
Hydroelectric Operating Supervisor Hydro One and Ontario Power Generation 43 $206,251
Section Manager Hydro One and Ontario Power Generation 36 $184,361
Nuclear Waste Operator Hydro One and Ontario Power Generation 33 $178,121
Training Technician Operator Hydro One and Ontario Power Generation 30 $168,117
Control Room Operator Hydro One and Ontario Power Generation 27 $241,105
Contracts Coordinator Hydro One and Ontario Power Generation 27 $202,557
Control Room Shift Supervisor Hydro One and Ontario Power Generation 26 $324,828
Training Officer Hydro One and Ontario Power Generation 21 $149,635
Electrician Hydro One and Ontario Power Generation 19 $129,270
Technical Specialist Hydro One and Ontario Power Generation 19 $172,019
Cost Analyst Hydro One and Ontario Power Generation 19 $155,795
Coordinator Hydro One and Ontario Power Generation 18 $128,466
Shift Supervisor Hydro One and Ontario Power Generation 18 $195,158
Human Resources Business Partner Hydro One and Ontario Power Generation 15 $144,537
Systems Analyst Hydro One and Ontario Power Generation 15 $112,773
Program Coordinator Hydro One and Ontario Power Generation 14 $150,369