At a Glance2021 Employer Rank
#7,753 Ontario Power Generation
Full 2021 roster at Ontario Power Generation → · See where $110,781 ranks →
On the List2021 Ontario Power Generation's 2021 median disclosed salary was $141,889; Gregory Maggs's $110,781 sat about 22% below it. Ontario Power Generation disclosed 8,401 salaries in 2021; Gregory Maggs's total compensation of $110,781 ranked #7,753 among them. Gregory Maggs's $110,781 salary was about 18% below the 2021 province-wide median of $135,606 for Senior Technical Engineer/Officer. 2021 is the only year Gregory Maggs appears on the Sunshine List at Ontario Power Generation.
Also at Ontario Power Generation2021 Also at Ontario Power Generation, 2021 # Name Position Salary Total Details 1 Kenneth Hartwick President and Chief Executive Officer $1,628,246 $1,635,786 2 Dominique Miniere Chief Strategy Officer $1,523,519 $1,527,441 3 Sean Granville Chief Operations Officer and Chief Nuclear Officer $1,064,429 $1,067,062 4 Michael Martelli Chief Projects Officer $1,010,834 $1,014,592 5 Dietmar Reiner Senior Vice President Refurbishment Transition $788,714 $789,480 6 Christopher Ginther Executive Vice President Business Strategy and Commercial Management $735,824 $742,677 7 Mark Knutson Chief Enterprise Engineering and Chief Nuclear Engineer $658,384 $660,835 8 Steve Gregoris Senior Vice President Darlington $639,224 $641,687 9 Christopher Fralick Chief Operating Officer $604,160 $606,502 10 John Mauti Chief Financial Officer and Senior Vice President - Finance $600,302 $601,313
#1 Kenneth Hartwick
$1,635,786 President and Chief Executive Officer
#2 Dominique Miniere
$1,527,441 Chief Strategy Officer
#3 Sean Granville
$1,067,062 Chief Operations Officer and Chief Nuclear Officer
#4 Michael Martelli
$1,014,592 Chief Projects Officer
Senior Vice President Refurbishment Transition
#6 Christopher Ginther
$742,677 Executive Vice President Business Strategy and Commercial Management
Chief Enterprise Engineering and Chief Nuclear Engineer
Senior Vice President Darlington
#9 Christopher Fralick
$606,502 Chief Operating Officer
Chief Financial Officer and Senior Vice President - Finance
View all 8,401 employees at Ontario Power Generation (2021) → Data sourced under the Ontario Public Sector Salary Disclosure Act.
Data: Ontario Public Sector Salary Disclosure, 1996–2025; last updated 2026-03-31 .
© 2026 SunshineList. Not affiliated with the Government of Ontario.