Study & Misc

Electricity Bill Calculator

Estimate residential electricity bills under the progressive tariff.

Monthly usage (kWh)

kWh

Based on residential low-voltage, non-peak season rates.

Fuel cost adjustment (KRW/kWh)

원

Changes quarterly per KEPCO notice; adjustable.

Estimated electricity bill

58,270원

Base charge1,600 원

Energy charge45,460 원

Climate/environment charge2,700 원

Fuel cost adjustment1,500 원

Subtotal51,260 원

VAT5,126 원

Power industry fund1,890 원

2026 reference estimate. High-voltage/seasonal rates, welfare discounts, and actual quarterly fuel adjustment values are not reflected; verify with your KEPCO bill.

How is the electricity bill calculated?

The base charge and energy charge are computed by progressive usage brackets, then a climate/environment charge and fuel cost adjustment are added to get the subtotal. A 10% VAT and 3.7% power industry fund are added on top for the final billed amount.

3-tier progressive rate table (residential, 2026)

Up to 200kWh: 910 KRW base + 120.0 KRW/kWh. 201–400kWh: 1,600 KRW base + 214.6 KRW/kWh. Over 400kWh: 7,300 KRW base + 307.3 KRW/kWh. Only the highest applicable base charge is billed; energy charges accumulate per bracket.

What are the climate charge and fuel adjustment?

The climate/environment charge reflects renewable energy obligations and emission costs proportional to usage. The fuel cost adjustment reflects quarterly fuel price changes per KEPCO notice; you can adjust it manually here.

Estimate only. 2026 reference figures; high-voltage/seasonal rates, welfare discounts, and actual quarterly values may differ. Verify with your KEPCO bill.

FAQ

How are the progressive brackets divided?

For residential low-voltage, non-peak season rates, usage is split into 3 brackets: up to 200kWh, 200–400kWh, and over 400kWh, with both base and energy charges rising by bracket.

What are the climate charge and fuel adjustment?

The climate/environment charge covers renewable energy and emission reduction costs proportional to usage; the fuel cost adjustment reflects quarterly fuel price changes and can vary from the official notice, so it's adjustable here.

How are VAT and the power fund calculated?

A 10% VAT is rounded and applied to the subtotal (base + energy + climate + fuel adjustment), and a 3.7% power industry fund is added after truncating to the nearest 10 KRW, giving the final billed amount.

Does this cover high-voltage or non-residential rates?

This tool estimates only the residential low-voltage, non-peak season rate. High-voltage/industrial/seasonal rates and welfare discounts are not reflected; check your KEPCO bill or the KEPCO site for exact amounts.

FAQ

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