Korean Appliance Power Bill (KEPCO)
Estimate monthly kWh per appliance and the bill under Korea’s KEPCO residential tariff, including tiers, summer bands, climate and fuel charges, VAT and the power fund.
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Korean Appliance Power Bill (KEPCO): complete guide
Walk through the steps and examples, or jump straight to the topic you need.
At a glance
- What you enter
- For each appliance: power consumption (W), hours used per day, days per month and number of units.
- Usage formula
- Power consumption times hours times days divided by 1000 = kWh.
- Rate basis
- Korea Electric Power Corporation residential (low-voltage) rate table. Base charge 910, 1,600 and 7,300 KRW; energy charge 120.0, 214.6 and 307.3 KRW per kWh (checked 2026-10-01).
- Seasons
- Other seasons use tier boundaries of 200 and 400 kWh, and summer (July to August) uses 300 and 450 kWh. Usage above 1,000 kWh in summer and winter is charged at 736.2 KRW.
- Added charges
- Climate and environment charge 9 KRW per kWh, fuel cost adjustment charge 5 KRW per kWh (Q4 2026), 10% value-added tax and 2.7% Electric Power Industry Fund.
- Rounding
- Each charge is rounded down below 1 KRW, VAT is rounded to the nearest won, and the fund and billed amount are rounded down below 10 KRW (same as the KEPCO ON calculator).
- Savings per appliance
- Shows separately how much the estimated bill would actually drop if you removed that appliance, including the base charge tier.
- Not covered
- Welfare and large-family discounts, splitting days by meter reading date, and high-voltage contracts.
- Limits
- Up to 30 appliances, 100,000 W power consumption, 24 hours a day and 31 days a month.
How to use Korean Appliance Power Bill (KEPCO)
Add your appliances
Press a common appliance button and a rough value is filled in. It's much more accurate if you change it to the W value on the label on the back of the product.
Enter how long you use them
Use a daily average. For an appliance that's always on, like a refrigerator, enter 24 hours, and for one used only on weekends, reduce the days per month to something like 8.
Choose the season
July to August is summer, so the progressive tiers widen to 300 and 450 kWh. In winter (December to February) and summer, the part above 1,000 kWh is charged the super-user rate. If the rates have changed or you're a high-voltage customer, change the unit prices to the values on your bill.
Look at each appliance's share
The appliances with the longest bars are the ones pushing your bill up. Next to each is also how much the bill would drop if you removed it.
What it’s good for
The KEPCO rate table is the default
For Korean residential low-voltage service (KEPCO, the Korea Electric Power Corporation), the base charge is 910, 1,600 or 7,300 KRW depending on the usage tier, and the energy charge rises progressively at 120.0, 214.6 and 307.3 KRW per kWh. In the July to August summer season the tiers widen to 300 and 450 kWh, and in summer and winter, usage above 1,000 kWh is charged at 736.2 KRW. On top of that, a climate and environment charge of 9 KRW and a fuel cost adjustment charge of 5 KRW (Q4 2026) are added per kWh. If the rates change, or you are a high-voltage or welfare-discount customer, you can edit the unit prices on screen.
The last electricity you use costs the most
With progressive pricing, the same 10 kWh costs a different amount for a home already using 200 kWh and a home already using 500 kWh. So for each appliance, the tool separately calculates how much the bill would actually drop if you removed that appliance. This shows which appliance is the most effective one to cut back on.
Estimated bill including VAT and the fund
To the electricity charge subtotal (base charge, energy charge, climate and environment charge and fuel cost adjustment charge), it adds 10% value-added tax (rounded to the nearest won) and the 2.7% Electric Power Industry Fund (rounded down to the 10 won), and the billed amount drops anything under 10 KRW. It follows the same method as the KEPCO ON rate calculator, so results match down to the won, such as 23,670 KRW for 150 kWh (September), 70,640 KRW for 350 kWh and 126,160 KRW for 500 kWh.
Worked examples
Refrigerator and air conditioner
Refrigerator 40 W 24 hours · air conditioner 1,800 W 6 hours · 30 days eachRefrigerator 28.8 kWh (8%)
Air conditioner 324 kWh (92%)Estimated bill for 350 kWh (September)
350 kWh in a month · other seasonsBase 1,600 + energy 56,190 + climate 3,150 + fuel cost 1,750 = 62,690 KRW
VAT 6,269 + fund 1,690 → billed 70,640 KRWWhich values should you correct for accuracy?
Swipe the table sideways to see the rest.
| Value | Where to find it | Effect |
|---|---|---|
| Power consumption | Label on the back of the product | Usage changes in direct proportion. |
| Season | The month of the meter reading | Summer tiers are wider, so the same usage costs less. |
| Days per month | The days you actually use it | Makes a big difference for appliances used only occasionally. |
When the result isn’t what you expected
It doesn't match my bill
If the meter reading period spans two months, KEPCO splits the calculation by days, and welfare and large-family discounts are deducted separately. Things not in the appliance list, such as lighting and boilers, need to go in the other usage box to match the real progressive tier.
The air conditioner's usage is too high
The power consumption on the label is the maximum. When the indoor unit reaches the set temperature, output drops, so the real average is lower. For an inverter model, try entering about half.
I don't know my tier prices
The default is the KEPCO residential low-voltage rate table. If you're a high-voltage customer, for example with a single apartment-complex contract, or the rates have changed, edit them to the unit prices listed under the energy charge on your bill.
Key terms
- kWh
- The amount of energy from using 1000 W for one hour. Charges are priced in this unit.
- Progressive pricing
- A method that charges a higher unit price in later tiers the more you use.
- Base charge
- An amount set by the tier your monthly usage falls in (910, 1,600 or 7,300 KRW).
- Electric Power Industry Fund
- A statutory charge added to electricity bills in Korea. It has been 2.7% since July 2025.
Korean Appliance Power Bill (KEPCO) FAQ
Where do I find the power consumption?
It's printed in W or kW on the label on the back or underside of the product. For appliances that cycle on and off, like air conditioners and refrigerators, the printed value is the maximum, so the real average is lower.
It doesn't match my bill
If the meter reading period spans two months, the days are split for the calculation, and welfare or large-family discounts and high-voltage contracts have different rates. If you use electricity outside the appliance list, enter it in the other usage box so it fits the real progressive tier.
Is standby power calculated too?
Just enter it yourself. Add a device that only draws standby power, for example 3 W for 24 hours a day, and you'll see how much it uses in a month.
Does it fetch live rates?
No. It includes the KEPCO residential low-voltage rate table as the default, along with the date it was checked, and values that change every quarter, like the fuel cost adjustment charge, can be edited on screen.
Are my entries saved?
No. They disappear when you refresh.
Does it handle solar power or power-saving discounts?
No. There are many kinds of discounts with different conditions, so this tool doesn't judge them.