Remote island universal service adjustment unit price and the average remote island fuel price, which is the basis for its calculation, are as follows.
Classification
December 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 kWh
-0.04円
Terms and Conditions of Supply and Demand Contract
Smart Family Plan
Smart Business Plan etc.
Per kWh
-0.04円
Fixed-price supply
Flat rate lighting
Public Street Lighting Plan A
Agricultural lighting
electric light
Up to 10W per lamp
-0.16円
For one lamp over 10W up to 20W
-0.32円
For one lamp over 20W up to 40W
-0.66円
For one lamp over 40W up to 60W
-0.97円
For one lamp over 60W up to 100W
-1.63円
For each lamp over 100W up to 100W
-1.63円
Small Devices
Per device up to 50VA
-0.49円
For one device over 50VA up to 100VA
-0.97円
For each device over 100VA up to 50VA
-0.49円
Temporary Lighting Plan A
(per day)
When the total capacity is up to 50VA
-0.01円
When the total capacity is over 50VA and up to 100VA
-0.03円
If the total capacity exceeds 100VA and is up to 500VA,
-0.03円
When the total capacity is over 500VA and up to 1kVA
-0.26円
If the total capacity is more than 1kVA and up to 3kVA,
-0.26円
Temporary Power Plan
(per day)
In the case of a contracted power of 0.5 kW
-0.14円
Contract power: from 1kW to 5kW, for every 1kW
-0.28円
Late Night Power A
(Terms and Conditions of Supply and Demand Contract)
Per contract
-4.16円
Agriculture Power Plan B
(per day)
Contract power: 0.5kW
-0.08円
Contracted power: 1kW
-0.14円
Contracted power: 2kW
-0.28円
Contracted power: 3kW
-0.42円
Contracted power: 4kW
-0.54円
Contracted power: 5kW
-0.68円
- Remote island universal service adjustment unit price for December 2025 will be calculated based on the average fuel price for remote islands from July 2025 to September 2025.
- Remote island universal service 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.
- 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 on remote islands
Classification
unit
Application period of Remote island universal service adjustment unit price
December 2025
Average Crude Oil Price
1キロリットルあたり
66,724 yen
Average LNG Price
1トンあたり
84,049 yen
Average Coal Price
1トンあたり
17,544 yen
Average fuel price on remote islands
原油換算1キロリットルあたり
66,700 yen
- The average fuel price for remote islands is based on trade statistics for a three-month period.