TAIPEI (Taiwan News) — Taiwan Power Company said the average monthly summer electricity bill for typical households reached NT$1,079 (US$36) in 2024, up NT$478 from non-summer months.
About 70% of the increase was due to higher electricity consumption, mainly from air conditioning during hot summer months. The remaining 30% results from seasonal rate adjustments, with this year's to take effect starting June 1.
Taiwan applies higher electricity rates from June to September each year to cover peak demand costs. Taipower said the summer rates reflect actual supply costs, while lower rates during non-summer months offset these increases, according to CNA.
In summer 2024, the average household consumed 428 kilowatt-hours per month, resulting in a bill of NT$1,079. By contrast, non-summer consumption averaged 305 kWh, costing NT$601 monthly.
Summer electricity usage rose roughly 40%, or 123 kWh, driving higher bills. About NT$351 of the NT$478 increase was due to increased consumption, with NT$127 attributed to higher seasonal rates.
Taiwan’s residential electricity pricing is divided into six tiers, with summer rates reaching NT$8.46 per kWh for usage exceeding 1,000 kWh monthly. Seasonal rates apply only to consumption above 120 kWh per month or 240 kWh over two months.
Summer bills typically rise between 13% and 28% compared to non-summer months for most households. Those consuming less than 120 kWh monthly generally are not affected, Taipower said.
The summer pricing affects about 15 million users, including households and small businesses. High-voltage customers in sectors such as technology and manufacturing have been subject to summer rates since May 16, with the pricing period continuing through Oct. 15.
