[9][10][11][12] Total power generation in 2017 was 270,279 GWh – which was supplied from coal (46.6%), natural gas (34.6%), nuclear (8.3%), renewables (4.6%), oil (4.7%), and pumped-storage hydro (1.2%).
Over the past decade, the capacity of peak load energy sources was between 10.3 and 14.8%, slightly lower than the expected 10–15% value.
[16] Once the reserve margin falls below the 900 MW alert level, power rationing will be put into place.
[22] Currently, Taipower is implementing the 6-year 7th Power Transmission and Substation Project starting January 2010 until December 2015 with a total investment of NT$238.9 billion.
[26] Taipower allocated US$800 million worth of investment for the development of distribution automation and smart substations.
[30] On 2 July 2015 at 1:48 p.m. local time, electricity load instantaneously reached its highest peak ever in Taiwan history at 35,380 MW.
[31][17] On 6 July 2015, the peak load record was broken when electricity consumption reached 35,560 MW at 1:45 p.m. local time, pushing the reserve margin to an alarming low of 3.07%.
[30] In 2012, there were a total of almost 13 millions of electricity customers in Taiwan, ranging from residential (89.4%), commercials (7.6%), industrial (1.6%) and others (1.4%).
After the measures were taken in 2012, a total amount of 4.833 TWh of electricity was saved in that year with carbon dioxide reduction reaching 2.59 million tons.
[39][40] The largest power outage in Taiwan due to a storm occurred on 9 August 2015 when Typhoon Soudelor hit the island, leaving 4.85 million households without electricity.
[41] On 15 August 2017 at 4:52 p.m., six generators of Tatan Power Plant in Guanyin District, Taoyuan City fully tripped due to operation technical error, disrupting the supply of 4 GW of electricity.
[22] On 17 September 2019, Taipower signed an agreement with Investigation Bureau of the Ministry of Justice on digital security of their operating system.