- Last updated
| Item | Unit | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Installed Capacity (Self-owned) |
MW | 32,217 | 31,500 | 33,270 | 35,137 | 35,205 | 34,321 | 34,337 | 32,564 | 32,256 | 32,411 |
| Power Generation (Self-owned) |
GWh | 174,043 | 180,488 | 182,662 | 180,443 | 183,873 | 189,136 | 188,255 | 174,454 | 172,095 | 168,086 |
| Thermal Efficiency （LHV） |
％ | 43.70 | 43.96 | 44.81 | 45.64 | 46.00 | 46.10 | 46.26 | 46.63 | 47.37 | 48.73 |
| Line Loss Rate | ％ | 3.85 | 3.82 | 3.94 | 3.86 | 3.97 | 3.53 | 3.82 | 3.20 | 2.93 | 3.19 |
| System Average Interruption Duration Index1 |
min/ household ‧yea |
16.27 | 16.90 (32.57) |
16.19 | 16.49 | 15.93 | 16.38 (43.52) |
14.94 (91.29) |
15.23 | 15.83 | 14.87 |
| Power Sales per Employee |
10 MWh | 911 | 925 | 927 | 915 | 926 | 974 | 981 | 956 | 964 | 941 |
| ROA2 | ％ | 1.96 | 1.12 | 1.49 | 0.85 | 1.13 | 1.03 | -10.03 | -8.08 | -1.55 | 2.6 |
Note：
- The data listed in upper column is for the regular operation, the one in lower column is for the major incidents.( In 2017 there was 815 power outage incident. In 2021 there were 513 & 517 power outage incidents. In 2022 there was 313 power outage incident.)
- The 2025 figure is based on self-compiled final accounts, while figures of previous years are based on officially audited final accounts.