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

May 2026

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

All Electric Nighttime Select 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

-0.17円

For one lamp over 10W up to 20W

-0.33円

For one lamp over 20W up to 40W

-0.68円

For one lamp over 40W up to 60W

-1.00円

For one lamp over 60W up to 100W

-1.68円

For each lamp over 100W up to 100W

-1.68円

Small Devices

Per device up to 50VA

-0.51円

For one device over 50VA up to 100VA

-1.00円

For each device over 100VA up to 50VA

-0.51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

-0.27円

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

-0.27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

-0.29円

Late Night Power A

(Terms and Conditions of Supply and Demand Contract)

Per contract

-4.29円

Agriculture Power Plan B

(per day)

Contract power: 0.5kW

-0.08円

Contracted power: 1kW

-0.14円

Contracted power: 2kW

-0.29円

Contracted power: 3kW

-0.43円

Contracted power: 4kW

-0.56円

Contracted power: 5kW

-0.70円

  • Remote island universal service adjustment unit price in May 2026 will be calculated based on the average fuel price for island services from December 2025 to February 2026.
     
  • 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

May 2026

Average Crude Oil Price

1キロリットルあたり

66,281 yen

Average LNG Price

1トンあたり

86,242 yen

Average Coal Price

1トンあたり

18,998 yen

Average fuel price on remote islands

原油換算1キロリットルあたり

66,300 yen

  • The average fuel price for remote islands is based on trade statistics for a three-month period.