Application process (J:COM Denki)

Switching is very easy!

  • for the contract period
    no binding
  • Initial cost
    pear
  • Cancellation fee
    pear
  • Witness construction
    Pear *1
Flow to use
full support

Flow to use

Step 1

Preparation before application

検針票(イメージ)

If you wish to use this service at your current residence, please prepare in advance the meter reading slip and usage details from your current electric power company in order to make your application process smoother.

See how to check

iconElectricity rate simulation

Step.2

Apply from the web

お申し込みイメージ

You can complete your application online.

New customers

Sign Up

J:COM Customers

J:COM でんきの追加

​Click here to switch from J:COM DENRYOKU to J:COM Denki

Items required for application

Electricity contract information (supply point number, customer number, etc.)

Please have your current electricity meter reading slip and usage details ready.

  • If you are moving to a new location, please provide your new address.

でんきの開通希望日

First-time users

credit card
credit card

Available cards here

Customers who wish to have their money transferred directly from their account must complete the procedure by phone or by sending in documents, and their application will be considered complete once the procedure has been completed.

User J:COM

J:COM Personal ID
J:COM Personal ID

J:COM personal ID (subscriber ID) is required to apply.
​Learn more about J:COM Personal ID

  • If the contract holder is a minor, J:COM will contact you.
Step.3

Start using

ご利用開始イメージ

As soon as the contract is completed, you can start using it.
Indoor construction *1 ・Attendance is not required.

It may take several weeks to switch over.

Complete Support

Our call center is available 365 days a year and is staffed by specialized staff. You can rest assured even when you are in trouble.

Our call center is available 365 days a year and is staffed by specialized staff. You can rest assured even when you are in trouble.

J:COM Denki/ J:COM DENRYOKU
Click here User

User please click here for procedures, support information, and questions.

User​Various procedures
support·
FAQ

If you are considering signing up or adding services

Sign Up information

New customers

New Customers
Sign Up

New Customers
Inquiries

Current customers

Current Customers
Various procedures

Troubleshooting/
Inquiries

Check how much your electricity bill will be

electric bill
simulation

J:COM電力に関するお問い合わせ

Contact us by phone (toll free)
0120-848-816 9:00-18:00 [Open all year round]

FAQ

What do I need when I apply?

お申し込みには以下の情報が必要となります。（電力明細（検針票など）をお手元にご用意ください。）

  • Switching company name: Name of retail electricity company under contract
  • Current contract type: contract type/plan name in use
  • Subscriber name
  • Switching operator customer number: Customer number of the retail electricity company you are contracted with
  • Supply point identification number: A number that identifies the electricity supply point (22 digits)

​Click here for information on how to check the number and contact information for each power company.

「J:COMでんき」へ切り替える際、室内工事は必要ですか？

室内工事なし※1で「J:COM でんき」へ切り替えることができます。

  • It may be necessary to replace the outdoor meter (watt-hour meter) (free of charge).
ケーブルテレビとセットじゃないと「J:COMでんき」は契約できないのですか？

以下の電力会社エリア内にお住まいのお客さまでしたら、「J:COMでんき」単体で、どなたでもお申し込みいただけます。

  • Hokkaido Electric Power
  • Tohoku Electric Power
  • Tokyo Electric Power Company
  • Kansai Electric Power
  • Chugoku Electric Power
  • Kyushu Electric Power
Are there initial costs such as fees?

「J:COM でんき」ご加入に伴う手数料や工事費といった初期費用はかかりません。

Are there any restrictions on the contract period? Will I be charged a penalty for canceling the contract?

There are no restrictions on the contract period.
You can cancel at any time without penalty.

For customers with long-term contracts that include other J:COM services, individual contract terms will apply.

Is "J:COM Denki/ J:COM DENRYOKU" eligible for discounts under government subsidies?

「J:COM でんき/J:COM 電力」は国の「電気・ガス価格激変緩和対策事業」、「酷暑乗り切り緊急支援」、「令和6年度電気・ガス料金負担軽減支援事業」の対象となります。
詳しくはこちら

all FAQsSee

[Notes]
  • It may be necessary to replace the outdoor meter (watt-hour meter) (free of charge).
  • It may take several weeks to switch.
  • Depending on the fuel cost adjustment amount in your area and the details of your current contract, some applications may not be accepted.
Close

[About the amount including tax]

  • Consumption tax differences may occur due to changes in the consumption tax rounding method under the invoice system.