Stable Power Supply and Installed Capacity
In response to record-breaking electricity demand in Taiwan, Taipower remains committed to ensuring a stable power supply. The Company continues to enhance generation capacity through the commissioning of new units, the grid integration of renewable energy, the implementation of time-of-use (TOU) pricing, demand response programs, and nighttime peak demand measures. These efforts have maintained a peak reserve margin above 8% and improved overall system stability through refined dispatch strategies for conventional units. For nuclear power plants, Taipower conducts ongoing reviews of operational vulnerabilities, strengthens oversight during major maintenance periods, implements equipment upgrades, and evaluates unplanned incidents each year to ensure safe and stable plant operations.
Total Amount and Composition of Power Generation from 2022 to 2024
| 2022 | 2023 | 2024 | ||||
| Billion kWh | Percentage | Billion kWh | Percentage | Billion kWh | Percentage | |
| Amount of Power Generated | 188.3 | 75.1% | 174.5 | 71.1% | 172.1 | 68.4% |
 Pumped Storage Hydro |
3.1 | 1.2% | 3.0 | 1.2% | 3.1 | 1.2% |
 Thermal |
156.0 | 62.2% | 149.7 | 61.0% | 152.4 | 60.6% |
 Nuclear |
22.9 | 9.1% | 17.2 | 7.0% | 11.7 | 4.6% |
 Renewable Energy |
6.3 | 2.5% | 4.6 | 1.9% | 4.9 | 1.9% |
| Amount of Purchased Power | 62.5 | 24.9% | 71.0 | 28.9% | 79.4 | 31.6% |
| Privately-Owned Thermal |
43.7 | 17.4% | 45.3 | 18.5% | 48.0 | 19.1% |
| Renewable Energy |
15.3 | 6.1% | 19.7 | 8.0% | 25.1 | 10.0% |
 Cogeneration |
3.4 | 1.4% | 5.9 | 2.4% | 5.9 | 2.4% |
| Net Amount of Power Generated and Purchased | 250.7 | 100.0% | 245.5 | 100.0% | 251.4 | 100.0% |
Note: Detailed items are not equal to the total due to rounding, and the round-off difference is not adjusted.
Regular Review and Analysis
Regular Review and Analysis
- Regularly convene Electromechanical System Incident Review Meetings.
- Regularly convene Power Dispatch System Incident Review Meetings.
Risk Management Implementation
- Identified "power shortages affecting system stability and safety"as a key risk control focus. Risks are assessed under various scenarios based on potential impact, with corresponding mitigation measures developed.
- Conducted quarterly tracking and review of implementation status.
- Performed a comprehensive review at the end of each quarter and established future control objectives.
Personnel Training
- Trained reserve online dispatch personnel and administered license certification exams for new dispatchers.
- Required licensed personnel to complete specified retraining hours every three years to maintain certification and ensure professional competency.
Improve Power Supply Reliability
Taipower is committed to improving the management efficiency of the power system, focusing mainly on improving unit availability. This requires preventive maintenance, regular inspections and improvements to the weaknesses of generator units to prevent potential problems and effectively reduce the unit failure rate.
Taipower's currently uses the System Average Interruption Duration Index (SAIDI) and the System Average Interruption Frequency Index (SAIFI) as performance indicators for power supply reliability. The SAIDI was 15.225 minutes and the SAIFI was 0.186 times in 2023. Taipower has implemented the Distribution System Resilience Project in recent years, and the number of power outages due to distribution accidents has dropped by nearly 25% compared with 2022. Taipower will continue to implement the Distribution System Resilience Project and a comprehensive feeder automation system, striving to achieve fewer power outages and faster recovery, and exerting every effort to reduce the impact of power outages on the public.
Ensuring Nuclear Power Safety
The Company always adheres to the concept of "defense-in-depth" to ensure the safe operation of its nuclear power plants. Taipower aims to:
01
Prevention
Evaluation and prevention are conducted in advance based on various extreme conditions.
02
Mitigation
Disaster mitigation is executed to prevent the leakage of radioactive materials from nuclear power plants.
03
Emergency Preparedness
If disaster mitigation fails to prevent external leakages of radioactive materials, protective actions will be taken to reduce the radiation exposure outside the plant.
04
Strategy
Specific Major Incident (SMI) Guidelines were developed as a basis for decision-making and operations, and are based on current design benchmarks for earthquake resistance and tsunami prevention at nuclear power plants, emergency operating procedures and severe nuclear outage handling guidelines. In normal times, the guidelines serve as a standard for personnel training and drills.
Power Reliability and Performance
The average duration of outages (minutes / household • year)
The average number of outages (times / household • year)
| 2022 | 2023 | 2024 | ||||
| Target | Performance | Target | Performance | Target | Performance | |
| Working blackout | 12.176 | 11.298 | 12.103 | 11.292 | 12.063 | 11.325 |
| Outage blackout | 4.424 | 3.638 | 4.398 | 3.933 | 4.337 | 4.506 |
| Total | 16.6 | 14.936 | 16.5 | 15.225 | 16.4 | 15.831 |
| 2022 | 2023 | 2024 | ||||
| Target | Performance | Target | Performance | Target | Performance | |
| Working blackout | 0.064 | 0.057 | 0.065 | 0.056 | 0.065 | 0.055 |
| Outage blackout | 0.196 | 0.124 | 0.195 | 0.130 | 0.195 | 0.154 |
| Total | 0.26 | 0.181 | 0.26 | 0.186 | 0.26 | 0.209 |
Line Loss Rate from 2022 to 2024
