At a Glance2021 Employer Rank
#4,267 Ontario Power Generation
Full 2021 roster at Ontario Power Generation → · See where $143,842 ranks →
On the List2021 $100,000 is the list's disclosure floor; 244,456 salaries met it in 2021. Ontario Power Generation disclosed 8,401 salaries in 2021; Mario Campisi's total compensation of $145,088 ranked #4,267 among them. Ontario Power Generation's 2021 median disclosed salary was $141,889; Mario Campisi's $143,842 sat about 1% above it. 2021 is the only year Mario Campisi 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 .
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