1. 九州電力（個人のお客さま）
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  3. Gas Rate Plan
  4. Past Raw material adjustment unit price
Past Raw material adjustment unit price
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  • Moving and other procedures
    • Contracts and other procedures
    • Change payment method
      • Payment by direct debit
      • Payment by credit card
      • Payment via SMS
      • Payment by bank transfer slip
      • Late payment interest system
    • Check charges and usage records
      • Confirm in writing
      • How to check "Electricity usage notification"
      • How to check your contract type
  • electricity
    • Rate Plan for households
      • Smart Family Plan
      • Smart Family Plan [Gas Set]
      • All Electric Nighttime Select
      • Residential lighting B
      • JAL Denki B, JAL Denki C
      • Ohisama Lunch Special Plan
      • Lighting by Season & Time-of- Use
      • Lighting by Time Slot
      • Lighting in Peak Shifts
      • Late Night Power A/B
      • Second Late Night Power
      • [Additional Contract] Baby Growth Plan
      • [Additional Contract] IJU-turn Support Plan
      • [Additional contract] Whole renewable energy plan
      • [Additional Contract] Let's Grow the Forest of the Future Plan
      • [Additional Contract] Avispa Fukuoka Support Plan
      • [Additional Contract] Fukuoka SoftBank Hawks Support Plan
      • [Additional contract] Renewable energy storage service
      • [Additional contract] IH purchase support plan
      • [Additional Contract] U-NEXT for Kyushu Electric Power Plan
    • Rate Plan for shops and offices
      • Smart Business Plan
      • Smart Business Plan [Gas Set]
      • Residential lighting C
      • High-Load Lighting Plan
      • Low- Voltage Power
      • Low- Voltage Seasonal Power Plan
    • Other Rate Plan
      • Residential lighting A
      • Flat rate lighting
      • Public Street Lighting Plan
      • Temporary Lighting Plan /electricity
      • Agriculture Power Plan A and B, agricultural lighting
    • Contract and fee simulation
    • How electricity rates work
      • How to calculate your electricity bill
      • Setting of paper issuing fee
      • Regarding Power transmission consignment charge
      • Calculation results of the fiscal year 2023 departmental income and expenditure
      • Our power source mix, non-fossil fuel certificate usage status, and CO2 emission coefficient [retail supply]
        • Our power source mix, non-fossil certificate usage status, and CO2 emission coefficient [retail supply] (FY2022 results)
        • Our power source mix, non-fossil certificate usage status, and CO2 emission coefficient [retail supply] (FY2021 results)
        • Our power source mix, non-fossil certificate usage status, and CO2 emission coefficient [retail supply] (FY2020 results)
        • Our power source mix and CO2 emission coefficient (FY2019 results)
      • Fuel cost adjustment system
      • Past Fuel, etc. adjustment unit price
      • Past Fuel adjustment unit price
        • Fuel adjustment unit price (low pressure supply April 2025)
        • Fuel adjustment unit price (low pressure supply, May 2025)
        • Fuel adjustment unit price (low pressure supply, June 2025)
        • Fuel adjustment unit price (low pressure supply, July 2025)
      • Past Remote island universal service adjustment unit price
        • Remote island universal service adjustment unit price (Low Voltage Supply, April 2025)
        • Remote island universal service adjustment unit price (Low Voltage Supply, May 2025)
        • Remote island universal service adjustment unit price (Low Voltage Supply, June 2025)
        • Remote island universal service adjustment unit price (Low Voltage Supply, July 2025)
      • Download the specific retail supply terms and conditions
        • Download supply terms and conditions and optional terms and conditions (past versions)
      • Download Terms and Conditions of Electricity Supply, Terms and Conditions of Supply and Demand Contract etc.
        • Downloads of Terms and Conditions of Electricity Supply, Terms and Conditions of Supply and Demand Contract etc. (past data)
      • Various notifications, etc.
      • Ampere Simulation
    • Purchasing electricity from renewable energy sources/Purchasing under the Feed-in Tariff (FIT) system
      • I want to know about the Feed-in Tariff Scheme
      • Purchases after the expiration of the purchase period under the Feed-in Tariff (FIT) scheme
        • Customers who wish to sell electricity to us for the first time
      • Contract Procedures
      • Documents related to your application to our company
      • Important Notice for Renewable Energy Power Generation Companies
      • Notice of assignment of claims, etc.
      • Renewable Energy Generation Promotion Surcharge
    • Convenient and safe use of electricity
      • Electricity Knowledge Book
      • Introducing useful information for saving energy and electricity
    • When the electricity goes out
    • To all electrical contractors
      • Application for low voltage construction (Raku-Raku Net)
      • Request for early submission of electricity usage application form
      • Contents of the Kyushu Electric Power Power Application Handbook (booklet)
      • How to fill out the "Electricity Use Application Form and Customer Equipment Construction Design Drawing (Completion Notification) and Construction Certificate"
      • Unit prices for various construction and temporary construction work
      • Current limiting for reverse power flow in smart meters with current limiting function
      • Notice regarding future inquiries regarding the discontinuation of new and additional reception at the counter
  • All-electric
    • What is all-electric?
      • Ecocute
      • Induction cooking heater
    • The benefits of all-electric
    • Rate Plan for all-electric homes
    • All-electric construction
    • Testimonials from customers who have adopted all-electric homes
    • All-electric renovation
  • gas
    • What is Kyuden Gas?
    • Supply area, track record and system
    • Gas Rate Plan
      • Raw material cost adjustment system
      • Current location: Past Raw material adjustment unit price
    • Steps to signing a contract
    • Customers with existing Kyuden Gas contracts
      • In case of a gas emergency
      • Kyuden Gas Appliance Support
      • Information on leasing alarm devices
  • Lifestyle Services
    • Kyushu Electric Power Group Anshinwari
      • Kyuden Group Anshinwari Rate Discount Simulation
    • Kyuden Anshin Support
      • Childcare support
      • Electricity Support
      • Life Support
    • Kyuden Smart Lease
      • What is Kyuden Smart Lease?
        • I want to go all-electric
        • I want to boil water economically
        • Ten years have passed since the installation of the solar power generation system, but we want to use the generated electricity effectively.
        • I want to reduce my monthly electricity bill
    • Q Pico
    • Kyuden eco app
      • Recruiting Kyuden eco app participants
  • Events/Sales Offices
    • Event search
    • Kyuden e-living
      • Kyuden e-Home Fukuoka
      • Kyuden e-Housing Kitakyushu
    • List of offices
      • Fukuoka Prefecture (Fukuoka area)
        • Fukuma Sales Office
        • Fukuoka East Sales Office
        • Fukuoka Sales Office
        • Fukuoka West Sales Office
        • Fukuoka Minami Sales Office
        • Amagi Sales Office
        • Kurume Sales Office
        • Yame Sales Office
        • Omuta Sales Office
      • Fukuoka Prefecture (Kitakyushu area)
        • Kokura Sales Office
        • Yawata Sales Office
        • Yukuhashi Sales Office
        • Iizuka Sales Office
        • Tagawa Sales Office
      • Saga Prefecture
        • Karatsu Sales Office
        • Tosu Sales Office
        • Saga Sales Office
        • Takeo Sales Office
      • Nagasaki Prefecture
        • Hirado Sales Office
        • Sasebo Sales Office
        • Omura Sales Office
        • Shimabara Sales Office
        • Nagasaki Sales Office
        • Goto Sales Office
      • Oita Prefecture
        • Nakatsu Sales Office
        • Hita Sales Office
        • Beppu Sales Office
        • Oita Sales Office
        • Mie Sales Office
        • Saeki Sales Office
      • Kumamoto Prefecture
        • Tamana Sales Office
        • Otsu Sales Office
        • Kumamoto West Sales Office
        • Kumamoto East Sales Office
        • Uki Sales Office
        • Yatsushiro Sales Office
        • Amakusa Sales Office
        • Hitoyoshi Sales Office
      • Miyazaki Prefecture
        • Nobeoka Sales Office
        • Hyuga Sales Office
        • Takanabe Sales Office
        • Miyazaki Sales Office
        • Miyakonojo Sales Office
        • Nichinan Sales Office
      • Kagoshima Prefecture
        • Izumi Sales Office
        • Kawauchi Sales Office
        • Kirishima Sales Office
        • Kagoshima Sales Office
        • Kaseda Sales Office
        • Kanoya Sales Office
    • inquiry
      • On LINE
      • Fax reception for customers with hearing or speech disabilities
      • List of main contact points when we contact you
  • Campaign List
    • All-electric campaign
    • Smart Lease Campaign
  • Site Policy
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Past Raw material adjustment unit price

2025

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2023

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2022

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2021

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2020

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2019

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2018 (Heisei 30)

  • December 2018
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2017 (Heisei 29)

  • December 2017
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