Fuel adjustment unit price and the average fuel price used as the basis for its calculation are as follows:

Classification

Fuel cost adjustment

discount

September 2025

Including consumption tax included

Pay-per-use supply

Specific Retail Supply Terms and Conditions

Residential lighting A, B, C

Low- Voltage Power etc.

Per 1kWh

1.09 yen

-2.40円

-1.31円

Terms and Conditions of Supply and Demand Contract

Smart Family Plan

Smart Business Plan etc.

Per 1kWh

1.09 yen

-2.40円

-1.31円

Fixed-price supply

Flat rate lighting

Public Street Lighting Plan A

Agricultural lighting

electric light

Per lamp up to 10W

4.24 yen

-9.32円

-5.08円

For one lamp over 10W up to 20W

8.47 yen

-18.64円

-10.17円

For one lamp over 20W up to 40W

16.95 yen

-37.29円

-20.34円

For one lamp over 40W up to 60W

25.43 yen

-55.93円

-30.50円

For one lamp over 60W up to 100W

42.38 yen

-93.22円

-50.84円

For each lamp over 100W up to 100W

42.38 yen

-93.22円

-50.84円

Small Devices

Per device up to 50VA

12.66 yen

-27.84円

-15.18円

For one device over 50VA up to 100VA

25.32 yen

-55.68円

-30.36円

For each device over 100VA up to 50VA

12.66 yen

-27.84円

-15.18円

Temporary Lighting Plan A

(per day)

When the total capacity is up to 50VA

When the total capacity is up to 50VA

0.34 yen

-0.75円

-0.41円

When the total capacity is over 50VA and up to 100VA

When the total capacity is over 50VA and up to 100VA

0.69 yen

-1.50円

-0.81円

If the total capacity exceeds 100VA and is up to 500VA,

If the total capacity exceeds 100VA and is up to 500VA,

0.69 yen

-1.50円

-0.81円

When the total capacity is over 500VA and up to 1kVA

When the total capacity is over 500VA and up to 1kVA

6.83 yen

-15.02円

-8.19円

If the total capacity exceeds 1kVA and is up to 3kVA,

If the total capacity exceeds 1kVA and is up to 3kVA,

6.83 yen

-15.02円

-8.19円

Temporary Power Plan

(per day)

In the case of a contracted power of 0.5 kW

In the case of a contracted power of 0.5 kW

3.59 yen

-7.90円

-4.31円

Contract power: from 1kW to 5kW, for every 1kW

Contract power: from 1kW to 5kW, for every 1kW

7.18 yen

-15.79円

-8.61円

Late Night Power A

(Terms and Conditions of Supply and Demand Contract)

Per 1contract

Per 1contract

109.12 yen

-240.00円

-130.88円

Agriculture Power Plan B

(per day)

Contract power: 0.5kW

Contract power: 0.5kW

1.79 yen

-3.95円

-2.16円

Contract power: 1kW

Contract power: 1kW

3.59 yen

-7.89円

-4.30円

Contract power: 2kW

Contract power: 2kW

7.18 yen

-15.79円

-8.61円

Contract power: 3kW

Contract power: 3kW

10.77 yen

-23.68円

-12.91円

Contract power: 4kW

Contract power: 4kW

14.36 yen

-31.58円

-17.22円

Contract power: 5kW

Contract power: 5kW

17.94 yen

-39.47円

-21.53円

  • Fuel adjustment unit price for September 2025 will be calculated based on the average fuel price from April 2025 to June 2025.
  • Fuel adjustment unit price will also be notified to you on your monthly meter reading notice, invoice, etc.
  • Electricity charges are calculated based on a unit price that includes the equivalent of consumption tax, etc.

  • Fuel adjustment unit price includes discounts under the government's "Electricity and Gas Price Support" program.
    For more details about this project, please visit the special website of the Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry.

  • Please note that the units listed in the table below may differ from those displayed on lighting fixtures, etc.
    ・W (Watts)
    ・VA (Volt-Amperes)
    ・kW (kilowatts)
    For more information, please see the FAQ below.

Average fuel price

Classification

unit

Application period of Fuel adjustment unit price

September 2025

Average Crude Oil Price

1キロリットルあたり

68,774 yen

Average LNG Price

1トンあたり

86,945 yen

Average Coal Price

1トンあたり

17,505 yen

Average fuel price

原油換算1キロリットルあたり

35,400 yen

  • Average fuel prices are based on three-month trade statistics.