About fuel cost adjustment
What is the fuel cost adjustment amount?
This is an adjustment amount that adjusts your monthly electricity bill according to the import prices and market fluctuations of the crude oil, LNG, and coal used for power generation.
Specifically, the average fuel price is calculated from the three-month average fuel price calculated based on the actual trade statistics released by the Ministry of Finance, and compared with the base fuel price set in the contract terms and conditions to automatically adjust electricity rates.
J:COM Power has introduced its own method of calculating fuel cost adjustment amounts starting from April 2023 (May meter reading).
In addition, for the Hokkaido area, there is no upper limit on the fuel cost adjustment amount, as it is calculated using the same formula as Hokkaido Electric Power Company's standard electricity terms and conditions.
For details, please refer to our terms and conditions (J:COM Electricity/ J:COM DENRYOKU Home Course Contract Terms and Conditions Appendix).
Fuel cost adjustment unit price
Tohoku Electric Power Area/Tokyo Electric Power Area/Kansai Electric Power Area/
Chugoku Electric Power Area/Kyushu Electric Power Area
J:COM Denki Home Course
Fuel cost adjustment unit price in 2025
Past fuel cost adjustment unit price
J:COM DENRYOKU home use course (new applications stopped)
If you have been using J:COM DENRYOKU before March 31, 2024
Fuel cost adjustment unit price in 2025
Past fuel cost adjustment unit price
Hokkaido Electric Power Area
J:COM Denki Home Course
Fuel cost adjustment unit price in 2025
J:COM DENRYOKU home use course (new applications stopped)
If you have been using J:COM DENRYOKU before May 14, 2025
Fuel cost adjustment unit price in 2025
Past fuel cost adjustment unit price
[About the amount including tax]
- Consumption tax differences may occur due to changes in the consumption tax rounding method under the invoice system.
