Wonkun Choi
Independent Electricity System Operator/Supervisor Solutions Design / Superviseur – Conception de solutions
2025 Salary
$171,568Total compensation $171,907, including $340 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
#318Independent Electricity System Operator
Years on List
122014–2025
Peak Salary
$171,5682025
Full 2025 roster at Independent Electricity System Operator →·See where $171,568 ranks →
Total Compensation History
Full History
2014–2025
$105,934 in 2014 is worth about $138,932 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Supervisor Solutions Design / Superviseur – Conception de solutionsIndependent Electricity System Operator | $171,568Benefits $340Total $171,907 |
| 2024 | Supervisor Solutions Design / Superviseur - Conception de solutionsIndependent Electricity System Operator | $158,395Benefits $328Total $158,723 |
| 2023 | Senior Solutions Architect / Architecte solutions principalIndependent Electricity System Operator / Opérateur indépendant de réseau d'électricité | $159,971Benefits $385Total $160,356 |
| 2022 | Solutions Architect / Architecte de solutionsIndependent Electricity System Operator | $146,729Benefits $449Total $147,178 |
| 2021 | Solutions Architect / Architecte de solutionsIndependent Electricity System Operator | $140,237Benefits $432Total $140,669 |
| 2020 | Solutions Architect / Architecte de solutionsIndependent Electricity System Operator | $134,633Benefits $410Total $135,043 |
| 2019 | Specialist Solutions / Spécialiste – SolutionsIndependent Electricity System Operator | $121,071Benefits $416Total $121,486 |
| 2018 | Specialist Solutions / Spécialiste – SolutionsIndependent Electricity System Operator | $124,613Benefits $480Total $125,092 |
| 2017 | Specialist Solutions / Spécialiste, SolutionsIndependent Electricity System Operator / Opérateur Indépendant De Réseau D'Électricité | $120,109Benefits $459Total $120,569 |
| 2016 | Engineer/Officer-Solutions / Spécialiste technique – SolutionsIndependent Electricity System Operator | $117,123Benefits $478Total $117,601 |
| 2015 | Engineer/Officer-Solutions / Spécialiste technique – SolutionsIndependent Electricity System Operator | $117,652Benefits $459Total $118,111 |
| 2014 | Engineer / Officer-Solutions / Spécialiste technique - SolutionsIndependent Electricity System Operator | $105,934Benefits $607Total $106,541 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Wonkun Choi's 2025 salary of $171,568 comes to roughly $115,754 once federal and Ontario income tax (about 29.3% effective) is deducted. Compared with 2024, when the figure was $158,395, that is a rise of about 8%. Wonkun Choi has appeared on the list 12 times since 2014. After pension contributions (probably PSPP or OPTrust in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$115,754
- Effective income-tax rate (excl. CPP/EI)
- ~29.3%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~32.5%
Where does $171,568 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.