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

Classification

September 2026

Fuel cost adjustment

discount

Total

(tax included included)

Pay-per-use supply

Specific Retail Supply Terms and Conditions

Residential lighting A, B, C

Low- Voltage Power etc.

Per 1kWh

1.86 yen

-4.50円

-2.64円

Terms and Conditions of Supply and Demand Contract

Smart Family Plan

All Electric Nighttime Select etc.

Per 1kWh

1.96 yen

-4.50円

-2.54円

Fixed-price supply

Flat rate lighting

Public Street Lighting Plan A

Agricultural lighting

electric light

Per lamp up to 10W

7.26 yen

-17.48円

-10.22円

For one lamp over 10W up to 20W

14.51 yen

-34.96円

-20.45円

For one lamp over 20W up to 40W

29.03 yen

-69.91円

-40.88円

For one lamp over 40W up to 60W

43.55 yen

-104.87円

-61.32円

For one lamp over 60W up to 100W

72.58 yen

-174.78円

-102.20円

For each lamp over 100W up to 100W

72.58 yen

-174.78円

-102.20円

Small Devices

Per device up to 50VA

21.69 yen

-52.20円

-30.51円

For one device over 50VA up to 100VA

43.36 yen

-104.41円

-61.05円

For each device over 100VA up to 50VA

21.69 yen

-52.20円

-30.51円

Temporary Lighting Plan A

(per day)

When the total capacity is up to 50VA

0.59 yen

-1.41円

-0.82円

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

1.18 yen

-2.82円

-1.64円

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

1.18 yen

-2.82円

-1.64円

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

11.70 yen

-28.17円

-16.47円

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

11.70 yen

-28.17円

-16.47円

Temporary Power Plan

(per day)

In the case of a contracted power of 0.5 kW

6.15 yen

-14.81円

-8.66円

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

12.30 yen

-29.61円

-17.31円

Late Night Power A

(Terms and Conditions of Supply and Demand Contract)

Per 1contract

196.42 yen

-450.00円

-253.58円

Agriculture Power Plan B

(per day)

Contract power: 0.5kW

3.07 yen

-7.40円

-4.33円

Contract power: 1kW

6.15 yen

-14.80円

-8.65円

Contract power: 2kW

12.30 yen

-29.61円

-17.31円

Contract power: 3kW

18.44 yen

-44.41円

-25.97円

Contract power: 4kW

24.59 yen

-59.21円

-34.62円

Contract power: 5kW

30.73 yen

-74.01円

-43.28円

  • Fuel adjustment unit price for September 2026 will be calculated based on the average fuel price from April 2026 to June 2026.
  • 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 2026

Average Crude Oil Price

1キロリットルあたり

112,839 yen

Average LNG Price

1トンあたり

93,153 yen

Average Coal Price

1トンあたり

22,185 yen

Average fuel price

原油換算1キロリットルあたり

41,800 yen

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