docomo Denki/docomo Gas

What is docomo Denki?

Take advantage of point rewards without changing the quality of your electricity service.

We offer two electricity plans: docomo Denki Basic, which rewards you d POINTs according to the cost of your electricity bill, and docomo Denki Green, which uses CO2-free renewable energy.
These plans not only enhance your daily life but also supply electricity that is better for the global environment.

Using non-fossil fuel certificates for LNG-fired and other power sources, CO2 emissions are virtually zero.

Reliable: Electricity will generally not be shut off during the switchover period, Rewarding: Rack up d POINTs!, Easy: No need to cancel your current electricity supplier. In principle, no installation work is required for the switchover.

New window Learn about docomo Denki for more details on the service website (in Japanese only)

Billing Plans

docomo Denki Green

Renewable energy-based electricity plan with net-zero CO2 emissions (*)

Using non-fossil fuel certificates for LNG-fired and other power sources, CO2 emissions are virtually zero.

New window docomo Denki Green (in Japanese only)

docomo Denki Basic

Offers the same quality as docomo Denki Green and still allows you to earn d POINTs

New window docomo Denki Basic (in Japanese only)

Application Procedure

The procedure will not take more than 5 minutes!
Please follow these 3 easy steps to complete your application.

STEP 01: Check the supply point identification number and your customer number, STEP 02: Register basic information, STEP 03: Verify important information and registration details

To apply for docomo Denki, the following information of your current electricity subscription is required.

Please confirm your own customer information of the current contracted electricity company, or check those with your printed electricity meter reading slip if you have one.

Name of your current electricity company
Customer number of your current electricity company
Supply point identification number
Name of the subscription holder
Your current amperage capacity

We may be unable to accept applications during maintenance hours. Check the maintenance information (in Japanese only) for details.

Apply (in Japanese only)

Service Areas and docomo Denki Billing Plans

docomo Denki is available throughout Japan, with the exception of the entire Okinawa Electric Power Company area and some remote islands.

Hokkaido Electric Power Co., Inc.
Tohoku Electric Power Co., Inc.
Tokyo Electric Power Company Holdings, Incorporated
Chubu Electric Power Company, Incorporated
Hokuriku Electric Power Company
The Kansai Electric Power Company, Incorporated
The Chugoku Electric Power Co., Inc.
Shikoku Electric Power Co., Inc.
Kyushu Electric Power Company, Incorporated

New window docomo Denki Billing Plans (in Japanese only)

d POINT Reward Rate for Electricity Charges

(in Japanese only)

Great Value Gas Plan Bundled with docomo Denki!

Earn d POINTs on your monthly gas bills! Recommended for docomo Denki and d CARD users/docomo Gas/Maximum reward rate: 1%

Points are awarded on the tax-exclusive amount of the basic charge and metered charge (including any adjustment costs under the fuel cost adjustment system).
You will receive a 1% or 0.5% reward for every ¥100 (excl. tax) of charges. Amounts less than ¥100 will be rounded down.
The point reward rate may vary depending on your d POINT CLUB membership linkage status, your docomo Denki contract status, your d CARD contract status, and your gas payment method.
Please refer to the table New window here (in Japanese only) for details on d POINT rewards.

Bundling docomo Gas with docomo Denki increases your d POINT reward rate on your electricity bill. Available for eligible phone line plans!/docomo Denki/reward rate: +2%

Points are awarded on the tax-exclusive amount of either the basic charge or minimum charge, plus the electricity usage charge.
You will receive a 2% reward for every ¥100 (excl. tax) of charges.
Available only if you are subscribed to a mobile phone plan offered since October 2019.
If you do not have a d CARD and have not completed your d POINT user information registration, d POINT rewards are not available.
Please refer to the table New window here (in Japanese only) for details on d POINT rewards.

Charges for docomo Denki and docomo Gas are not eligible for the standard d CARD points (1 point for every ¥100 spent (incl. tax)).

Introducing docomo Gas

Peace of Mind/(1) The same quality and safety as your local gas company(2) The same plans, same prices as your local gas company/ * Due to consumption tax calculation, there may be a discrepancy of ¥1. * Some plans are not available. To apply for the "Matome-toku" billing plan under "docomo Gas Supplied by Osaka Gas," you also need to have a contract with docomo Denki. Conditions for the discount program may vary.

Great Value/(3) Earn d POINTs on your monthly gas bill when you use docomo Denki or a d CARD(4) Get a higher d POINT reward rate on your electricity bill when you bundle it with docomo Denki/ * Available only if you are subscribed to an eligible mobile phone plan.

Easy/(5) None of the following needed! Switching work - Paperwork - Canceling with your current gas company - Initial / switching costs ¥0 *1/You can apply at a docomo Shop or on our website. *2/ *1 Please check with your current gas company for any cancellation fees that may apply. *2 We will confirm your application details by phone at a later date.

Click here for details on
docomo Gas (in Japanese only)

Eligible DOCOMO mobile phone plans:
Those subscribed to any of the following mobile phone plans offered since October 2019 are eligible.
Eligible plans: 5G Gigaho Premiere / Gigaho Premiere / Hajimete Sumaho Plan / ahamo / 5G Gigaho / 5G Gigalight / 5G Data Plus / Gigaho 2 (Xi) / Gigalight 2 (Xi) / Data Plus 2 (Xi) / Keitai Plan 2 (Xi) / Kids Keitai Plan 2 (Xi) / Kids Keitai Plan 3 / home 5G Plan / LTE Jouku Riyou Plan / U15 Hajimete Sumaho Plan / home denwa Light / home denwa Basic / Chikaku-exclusive Plan / eximo / eximo Poikatsu / irumo / docomo MAX / docomo Poikatsu MAX / docomo Poikatsu 20 / docomo mini / Chikaku-exclusive Plan / OCN Mobile ONE
If you are subscribed to OCN Mobile ONE, you must register for the special offer through our designated method after linking your carrier-free d ACCOUNT tied to the docomo Denki subscription with OCN ID. Ensure that the registration process is completed by the end of the month prior to the electricity billing month. New registrations for the offer will no longer be accepted after 30 September 2025. Customers who had registered by 30 September 2025 may continue to receive benefits.

Notices from docomo Denki

Please check the latest updates from docomo Denki here.

New window Notices from docomo Denki (in Japanese only)

Easy Switchover without Installation Work

You do not need to contact your current electricity supplier, nor to visit our docomo Shop branch for the switchover. No costs for installation or other related work, nor actions are required on your part from the switchover application to commencement of service, in principle.

Maintenance Information

The following page contains maintenance information, including details on application maintenance.

New window Maintenance Information (in Japanese only)

In the Event of Power Failure

The following page contains information on actions to take when a power failure occurs.

New window In the Event of Power Failure (in Japanese only)

Contact Us

docomo Shop/d garden

All shops provide this support service through interpreters, to enable foreign language speaking customers to stop by freely and comfortably.

New window docomo Shop/d garden

Inquiries by Phone

open all year round

From DOCOMO mobile Phones

15770

Available languages: English, Portuguese, Chinese, and Spanish.
9 a.m. to 8 p.m.

Only from a DOCOMO mobile phone or DOCOMO Smartphone.

From landline phones etc.

0120-005-250
Available languages: English, Portuguese, Chinese, and Spanish.
9 a.m. to 8 p.m.

May not be accessible from some IP phones.