2026 Taiwan Summer Electricity Rates Start June 1: Correct Bracket Tiers + NT$12,000 Subsidy + 7 Saving Tips

Data current as of May 2026. Taipower’s “summer rate” runs every year from June 1 through September 30, and it’s meaningfully more expensive than the non-summer rate. For office worker households, turning on the AC alone can push June’s bill 1.5× higher than May’s. This guide pulls together the 2026 rate tiers, practical energy-saving techniques, and up to NT$12,000 in energy-saving subsidies — so you can get ready before summer arrives.

The correct 2026 summer rate tiers

A lot of older articles cite outdated prices. The latest 2026 Taipower residential rates (progressive tier system by kWh consumed):

Monthly usage (kWh)	Summer (6/1–9/30)	Non-summer	Tier delta
1–120	1.68	1.68	0
121–330	2.45	2.16	+13%
331–700	3.70	3.03	+22%
701–1000	5.04	4.14	+22%
1001–1500	6.24	5.07	+23%
1501+	8.46	6.63	+28%

(Rates in NT$ per kWh.)

Progressive billing: it’s not “all your electricity gets billed at the highest tier” — it’s “tiered billing.” For example, using 500 kWh: the first 120 kWh at NT$1.68, kWh 121–330 at NT$2.45, kWh 331–500 at NT$3.70.

Worked comparison: a 500-kWh household, summer vs non-summer

Say your household uses 500 kWh a month:

Non-summer bill:

1–120 kWh: 120 × NT$1.68 = NT$201.6
121–330 kWh: 210 × NT$2.16 = NT$453.6
331–500 kWh: 170 × NT$3.03 = NT$515.1
Total about NT$1,170

Summer bill:

1–120 kWh: 120 × NT$1.68 = NT$201.6
121–330 kWh: 210 × NT$2.45 = NT$514.5
331–500 kWh: 170 × NT$3.70 = NT$629
Total about NT$1,345

Summer runs NT$175 more than non-summer (+15%). At 700 kWh, summer runs NT$400–500 more; over 1,000 kWh, the gap widens further. The biggest savings come from cutting usage above the 331 kWh tier.

Tip 1: set AC at 26–28°C and pair with a fan

Every 1°C you raise the AC setpoint saves about 6% on electricity (Energy Administration of the Ministry of Economic Affairs). The best practice is 26–28°C with a fan running — the perceived temperature is close to 24°C, but monthly savings come to NT$200–400.

Key AC-saving practices:

Clean the filter regularly (a dirty filter uses 10–15% more power)
Close doors and windows, draw the curtains to block sunlight (west-facing walls in particular)
Use “auto” mode, not “max cool”
Don’t cycle an inverter AC on and off frequently — continuous running for 4–6 hours is more efficient
AC unit placement should avoid west-facing walls, and the outdoor unit needs good ventilation
Fan assist: airflow circulation lowers perceived temperature by 2–3°C

Tip 2: track down the hidden vampires of standby power

Standby power (so-called “vampire power”) accounts for about 5–10% of household electricity. The most common hidden offenders:

Set-top boxes, Wi-Fi routers (on 24/7)
Chargers and adapters left plugged in when you’re not home
Microwaves and ovens with clock displays
Standby lights on TVs, audio gear, computer monitors
Water dispensers, smart speakers
Printers and scanners (standby draws more power than you’d think)

Practical move: buy a “power strip with a master switch” (NT$200–500 each), and cut everything non-essential when you leave for work or head out. In practice, a typical household saves NT$100–200/month — easy payback within a year.

Tip 3: evaluate “residential time-of-use” pricing

If your household’s usage pattern is “out all day, home at night,” consider applying for Taipower’s “residential time-of-use” rate. Off-peak hours (22:30 to 07:30 the next day) can drop as low as about NT$1.96/kWh. Schedule laundry, drying, cooking, and EV charging during that window — savings start at NT$300/month.

⚠️ The math matters: use the Taipower app’s “bill calculator” to assess your last 6 months of usage before switching — otherwise you may end up paying more. Some heavy users in Taipei / New Taipei actually do better staying on the standard plan after running the numbers.

Tip 4: capture the 2026 energy subsidy + excise tax refund (up to NT$12,000)

In 2026, the Ministry of Economic Affairs’ “residential appliance trade-in” program plus the Ministry of Finance’s “excise tax reduction” run in parallel. Combined amounts:

Single AC unit: up to NT$5,000

Energy subsidy: NT$3,000 per Energy Class 1 AC unit (Ministry of Economic Affairs, save3000.moeaea.gov.tw)
Excise tax refund: another NT$2,000 (Ministry of Finance)
Maximum combined: NT$5,000

Full appliance set: up to NT$12,000

Buy all four major appliances — AC, refrigerator, water heater, dehumidifier — and apply for each subsidy + refund, up to NT$12,000 combined:

Appliance	Energy subsidy	Excise tax refund	Subtotal
Air conditioner	3,000	2,000	5,000
Refrigerator	3,000	2,000	5,000
Water heater	1,000	—	1,000
Dehumidifier	1,000	—	1,000
Total			12,000

Eligibility

Purchase appliances with the Energy Class 1 label (including Class 1 AC and refrigerators)
Complete recycling of the old unit (obtain the Ministry of Environment’s Waste Appliance Recycling Receipt)
The electricity service address and account match “residential, non-commercial use”
Invoice window: purchases from early 2023 through 2026-12-31
Application deadline: complete online application by 2027-01-31

If your AC is more than 8 years old, the old unit uses 30–40% more power than a new one — replacing it pays back in a year just from electricity savings. Each city and county may add extra subsidies (Taipei, for example, adds NT$1,000–2,000); check the Ministry of Economic Affairs’ “Energy-Saving Appliance Subsidy” official site.

Tip 5: track your monthly electricity bill

What doesn’t get measured doesn’t get improved. Recommendations:

Monthly meter reading (using the bi-monthly bill as a baseline) — record kWh and track “monthly kWh” and “average rate per kWh” in a spreadsheet
The Taipower app + smart meter lets you see the hourly usage curve and identify peak hours
Compare year over year: see how this month stacks up against the same month last year

To convert quickly between kWh, watts, and kilowatt-hours, use TWTools’ unit converter. To count down to your next meter-reading day, use the date calculator paired with the countdown timer — set a reminder for every two months.

Tip 6: switch to LED bulbs + smart sockets

Many homes still use traditional bulbs or T8 fluorescent tubes. Switching to LED:

An 8W LED replaces a 60W incandescent bulb, cutting power use by 86%
An 18W LED tube replaces a 40W T8 fluorescent tube, cutting power use by 55%
Average lifespan is 5–10× longer, so fewer replacements
One LED bulb costs NT$100–300 and pays back within 6 months

Smart sockets (NT$200–500 each) let you control appliances from your phone — if you forget to turn off the AC on your way out, you can shut it off remotely.

Tip 7: batch laundry and dishwashing

A lot of people don’t realize the washing machine + dryer are hidden summer-bill killers:

Batch the laundry: 2 full loads a week beats washing 1 garment a day, saving 50% on the washer
Cold-water wash: 90% of clothes wash fine in cold water — heating water accounts for about 80% of a washer’s total power use
Air-dry instead of using the dryer: in summer, clothes dry in 2–3 hours on a sunny day, saving roughly 5–10 kWh per dryer cycle

Smart meters + time-of-use rates: 2026 eligibility breakdown

Time-of-use pricing (different rates for day vs night) saves money on the bill, but it requires a smart meter at your home. Taipower’s rollout schedule: cumulative 6 million households installed by 2030 (ROC Year 119), 100% coverage by 2035 (ROC Year 124). As of end of 2025, 76,000 residential households + 137,000 small businesses are on time-of-use rates, for a total of 213,000.

You can’t actively request a smart meter right now — Taipower will only install one in two scenarios: ① you apply for the “time-of-use rate plan,” or ② your home has “renewable energy grid integration” (e.g., your own rooftop solar). Regular users wait for the 2030–2035 rollout.

Is time-of-use right for you? Quick check:

Residential usage above 700 kWh/month + high overnight share → eligible, potential annual savings of NT$1,000–3,000
Small business usage above 1,100 kWh/month → eligible
Low total usage / peak usage concentrated during the day → not recommended; may actually cost more

How to apply: ① in person at a Taipower service center, ② online via the Taipower website. Run the calculation on the Taipower app for your last 6 months of bills before deciding — you can only switch once per year.

4 things to do before the end of May

The summer rate kicks in on June 1 — there’s still time to prep:

AC inventory: schedule replacement for any AC older than 8 years and time it with the subsidy
Master-switch power strips: route every non-essential standby device through a master-switch strip
Time-of-use simulation: download the Taipower app and check the time-of-use simulation result
Subsidy submission: purchase and submit before June to avoid running out of allotments (2026 subsidy quotas are limited)

Those four moves alone can save NT$1,000–3,000 across June–September.

FAQ

Q1: When does the summer rate end?

A: September 30 every year; the non-summer rate resumes October 1. But because bills span months, the bill received at the end of October may still include some summer-rate consumption.

Q2: Is it cheaper to leave AC on all day or to switch it on and off?

A: For an inverter AC, continuous operation under 4–6 hours is more efficient than cycling on and off. For a fixed-speed AC, short trips out (under 30 minutes) are also better left on. For longer absences (over 2 hours), turn it off — otherwise it’s pure waste.

Q3: Does applying for time-of-use cost anything?

A: Free to apply, but you can only switch once per year. Switching back to the original plan is also free, but there’s a cooling-off period. Run a 6-month simulation in the Taipower app before deciding.

Q4: Do heavy users get charged more?

A: Residential usage above 700 kWh/month is billed at NT$5.04/kWh in summer and NT$4.14/kWh non-summer. Above 1,000 kWh it gets more expensive still (starting at NT$6.24/kWh in summer). Keeping usage under 700 kWh avoids the top tier — multi-person households may consider applying for separate meters per unit.

Q5: How do I apply for the NT$3,000 energy subsidy?

A: ① Buy an Energy Class 1 appliance and keep the invoice, ② complete recycling of the old unit (obtain the Waste Appliance Recycling Receipt), ③ submit online at save3000.moeaea.gov.tw plus upload ID, bankbook, and electricity bill records, ④ wait for the subsidy to deposit (about 2–4 weeks).