How J:COM Denki works
You can use our products with peace of mind while maintaining the same quality.
Mechanism of reliable power distribution while maintaining quality
The same power distribution equipment (electric wires, substations, indoor wiring, etc.) will be used as before, so the quality and safety of the electricity (possibility of power outages, etc.) will not change. Indoor construction *- No attendance is required.
- It may be necessary to replace the outdoor meter (watt-hour meter) (free of charge).
-
Tokyo, Tohoku, Kansai, Chugoku, and Kyushu Electric Power Area
Based on an agency agreement between our company and Sumitomo Corporation (hereinafter referred to as "Sumitomo Corporation"), a retail electricity supplier, electricity supplied by Sumitomo Corporation is supplied as J:COM Denki.
Hokkaido Electric Power Area
Based on an agency contract between our company and Hokkaido Electric Power Co., Inc. (hereinafter "Hokkaido Electric Power"), a retail electricity supplier, we supply electricity supplied by Hokkaido Electric Power as J:COM Denki.
About power supply configuration
FY2022 Actual figures (April 1, 2022 to March 31, 2023)
Approximately 20% of the power supply for J:COM 's electricity services that we procure is made up of renewable energy, including FIT electricity.
| Electric utility name | Basic emission factor (kg-CO2/kWh) |
Adjusted emission factor (kg-CO2/kWh) |
|---|---|---|
| J: J:COM West Co., Ltd. | 0.421 | 0.438 |
| J:COM Saitama East Japan Co., Ltd. | 0.417 | 0.421 |
| J: J:COM Sapporo Co., Ltd. | 0.420 | 0.466 |
| J:COM Shonan/Kanagawa Co., Ltd. | 0.417 | 0.420 |
| J: J:COM Chiba Co., Ltd. | 0.417 | 0.462 |
| J: J:COM Tokyo Co., Ltd. | 0.417 | 0.430 |
| Tsuchiura Cable Television Co., Ltd. | 0.417 | 0.462 |
| Cablenet Shimonoseki Co., Ltd. | 0.422 | 0.468 |
| J: J:COM Kyushu Co., Ltd. | 0.423 | 0.470 |
| Oita Cable Telecom Co.,Ltd. Co., Ltd. | 0.423 | 0.470 |
Click here for non-fossil certificate usage status of each corporation
- Part of the cost of procuring this electricity is covered by a levy on renewable energy collected from all electricity users, including those who are not our customers, and the CO2 emissions of this electricity are treated as having the national average CO2 emissions of electricity, including thermal power generation.
- This electricity includes hydropower, thermal power, nuclear power, FIT electricity, renewable energy, etc.
- Imbalance replenishment from former general electric utilities and some of the electricity procured from other companies whose power plant cannot be specified are treated as "Others."
- Totals may not add up to 100% due to rounding.
This breakdown has been created based on the "Guidelines for Electricity Retail Business" (established by the Ministry of Economy, Trade and Industry in January 2016 and revised in April 2023).
Planned value for FY2024 (April 1, 2024 - March 31, 2025)
Excluding J:COM Sapporo
J:COM 's electricity service is supplied by Sumitomo Corporation, a retail electricity provider. The power source composition (plan) of the company's procured power sources is as follows.
- Part of the cost for Sumitomo Corporation to procure this electricity is covered by renewable energy levies collected from electricity users, including those who are not our customers. The CO2 emissions of this electricity are treated as having the national average CO2 emissions from electricity generated by thermal power plants, etc.
- This electricity includes hydropower, thermal power, nuclear power, FIT electricity, renewable energy, etc.
- Imbalance replenishment from former general electric utilities and some of the electricity procured from other companies whose power plant cannot be specified are treated as "Others."
- This electricity includes solar, wind, geothermal, bio, and hydro (less than 30,000 kW).
- Totals may not add up to 100% due to rounding.
- This breakdown has been created based on the "Guidelines for Electricity Retail Business" (established by the Ministry of Economy, Trade and Industry in January 2016 and revised in April 2023).
- The scope of application of the planned values for power source composition is the supply facilities maintained and operated by Tohoku Electric Power Network Co., Ltd., TEPCO Power Grid Co., Ltd., Kansai Electric Power Transmission and Distribution Co., Ltd., Chugoku Electric Power Network Co., Ltd., and Kyushu Electric Power Transmission and Distribution Co., Ltd. A transmission and distribution area that supplies electricity through.
With MY J:COM app
Easy check
Electricity charges and usage
seen in the graph
If you are considering signing up or adding services
Sign Up information
New CustomersCheck how much your electricity bill will be
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?
-
You will need the following information to apply: (Please have your electricity bill (meter reading slip, etc.) ready.)
- 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.
- Is indoor construction required when switching to "J:COM Electricity"?
-
You can switch to "J:COM Electricity" without any indoor construction work required *1.
- It may be necessary to replace the outdoor meter (watt-hour meter) (free of charge).
- Can I only sign up for J:COM Denki if I get a cable TV set?
-
Anyone who lives within the areas served by the following electric power companies can apply for "J:COM Denki" alone.
- 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?
-
There are no initial costs, such as fees or installation costs, associated with subscribing to "J:COM Denki."
- 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 Denki/ J:COM DENRYOKU" is eligible for the government's "Electricity and Gas Price Sudden Change Mitigation Measures Project," "Emergency Support to Get Through the Extreme Heat," and "FY2024 Electricity and Gas Fee Burden Reduction Support Project."
Learn more
- Former general electric utility company
[About the amount including tax]
- Consumption tax differences may occur due to changes in the consumption tax rounding method under the invoice system.
