Regarding the power supply situation in July, Taipower stated that in response to the high electricity demand brought by the intense midsummer heat, the daytime peak instantaneous load is predicted to reach a record high of 41.19 GW. Taipower is fully prepared to meet this demand. Unit 1 of the Maanshan Nuclear Power Plant is scheduled to be decommissioned by the end of July, and the new unit in Fong Der Power Plant with greater capacity is planned as its replacement. Additionally, the return of units from annual maintenance and the use of renewable energy sources will ensure that the power supply can meet the load demand. Taipower estimates that throughout the month, the daytime peak percent operating reserve will remain at 10%, whereas the nighttime peak will have an operating reserve of 2.8 GW, equivalent to the installed capacity of three Maanshan Unit 1 reactors, maintaining a nighttime peak percent operating reserve of 7%.
Return of Units from Annual Maintenance, New Unit in Fong Der Power Plant Fully Operational by Mid-July, Maanshan Unit 1 Decommissioned by End of July
Taipower explained that it takes factors such as summer peak demand and unit decommissioning schedules into consideration when planning maintenance and power generation schedules. Typically, no maintenance is scheduled for units during the summer. Compared to April, July will see the return of units with a combined installed capacity of over 4.3 GW, thereby increasing the overall power supply capacity.
Regarding the new unit, Unit 3 of the privately owned Fong Der Power Plant (1.1 GW) will be added to the power supply system, initially operating at half capacity before reaching full capacity by the middle of the month. As for the decommissioned unit, the operating license for Unit 1 of Maanshan Nuclear Power Plant (950,000 kW) will expire on July 27, after which operation of the unit is not permissible by law. The unit has been gradually reducing its power output since mid-June, and will continue to do so until the expiration date of the operating license.
Daytime Peak Supported by Solar Photovoltaic Power, Nighttime Peak Managed with Flexible Dispatch, Ensuring Overall Stable Power Supply
In addition to traditional units, Taipower also estimates the power generation capacity of renewable energy sources and cogeneration systems, assessing both daytime and nighttime peak supply capabilities. By considering weather data and historical load patterns, Taipower predicts the highest daytime and nighttime peak loads. The maximum daytime peak supply capacity is estimated to reach 46.52 GW, exceeding the predicted highest daytime peak load of 41.19 GW. The maximum nighttime peak supply capacity is estimated to reach 40.74 GW, exceeding the predicted highest nighttime peak load of 37.46 GW.
Taipower pointed out that with the help of solar photovoltaic power, which can provide approximately 8 GW during midday, the daytime peak power supply is secure, with a percent operating reserve of 10%. To address nighttime peak periods, flexible measures such as pumped storage hydropower, time-of-use pricing, ancillary services, and demand response will be employed. The nighttime peak operating reserve is prepared at 2.8 GW, maintaining a percent operating reserve of 7%.
Spokesperson: Vice President Chih-Meng Tsai
Tel: (02)2366-6271/0958-749-333
E-mail:
[email protected]Contact Person: Power Dispatch Department Director Fang-Cheng Chou
Tel: (02)2366-6600/0952-810-417
E-mail:
[email protected]