Energy Retailing
NTT Anode Energy provides a wide range of green energy solutions in partnership with ENNET*, one of Japan's leading electricity retailers. Through our Corporate PPA (Power Purchase Agreement) service, under which NTT Anode Energy enters into long-term renewable energy procurement agreements with customers, we support decarbonization management and contribute to medium- and long-term initiatives aimed at reducing greenhouse gas emissions. In addition, in 2021, we started providing renewable energy to 7-Eleven Japan as Japan's first off-site PPA. Since then, we have supported the expansion of renewable energy adoption and promoted decarbonization by providing corporate PPAs to customers across a wide range of industries, including retail, manufacturing, and finance.
*A subsidiary of NTT Anode Energy that supplies electricity tailored to customers' needs.
Off-site PPA Models
Physical PPA
Under this scheme, customers enter into long-term contracts for electricity and the associated environmental attributes generated by renewable energy facilities owned by power producers. Because this model delivers electricity from remote power generation facilities to customers via the transmission and distribution grid, customers can adopt renewable energy without being subject to physical constraints such as land availability.
Virtual PPA
Under this type of contract, customers receive the environmental attributes derived from renewable energy generated by power producers, while settling the difference between the strike price (a predetermined price) and the wholesale electricity market price with the power producers. Because customers do not trade electricity with power producers, they can adopt renewable energy - even as tenants - without changing their existing contracts with their electricity retailers.
Case studies of corporate PPAs provided
by NTT Anode Energy
Ube Aquafront
Public FacilitiesThe annual electricity consumption of the Ube City Public Sewer System Western District Operations Project, operated by Ube Aquafront, is substantial. Among the public services operated by local governments, it has one of the highest CO₂ emission rates. Against this backdrop, we proposed an offsite corporate PPA to support the decarbonization of water and wastewater services. As a result, the first off-site PPA for a Water PPP project rated Level 3.5 or higher, within the Ube City Public Sewer System Western District Operations Project, was introduced. This enabled virtually 100% of the electricity used to be sourced from renewable energy.
*Level 3.5 or higher Water PPP: A public-private partnership model in which private-sector operators comprehensively manage the maintenance and renewal of water infrastructure -including water supply, sewerage, and industrial water systems- under long-term contracts typically spanning 10 years. This model is characterized by performance-based contracting and profit sharing between the public and private sectors based on achieved results.
Duskin
ManufacturingAs part of the Duskin Environmental Vision 2050, Duskin was considering introducing renewable energy at its manufacturing sites to reduce its environmental impact, including CO₂ emissions. However, the company wanted to procure only the environmental attributes while maintaining its existing electricity contracts, while enabling a more efficient transition to renewable energy. We proposed a virtual PPA that enables customers to secure environmental attributes separately from their electricity contracts. As a result, for the first time in the cleaning-related rental industry, the facility effectively achieved 100% renewable electricity usage.
Major Clients
- 7-Eleven Japan (June 2021-)
- Ito-Yokado (January 2022-)
- Sumitomo Mitsui Trust Bank (January 2022-)
- NTT DOCOMO (April 2022-)
- MUFG Bank (July 2022-)
- NEC Platforms (June 2024-)
- Duskin (February 2025-)
- NTT Urban Development (April 2025-)
- Energywith (April 2025-)
- Koshidaka (June 2025-)
- COMNIC (June 2025-)
- SOLCOM (November 2025-)
- NTT EAST (April 2026-)
- NTT WEST (April 2026-)
- Ube Aquafront (April 2026-)
*Information as of May 2026.
Providing docomo Denki®
Since March 2022 , NTT Anode Energy has been providing docomo Denki® to residential customers, with NTT Anode Energy serving as the electricity retailer and NTT DOCOMO acting as the customerfacing service provider. In October 2025 , the number of docomo Denki® contracts surpassed one million. In addition to standard electricity plans, docomo Denki® offers docomo Denki® Green, which uses electricity generated from renewable energy sources with effectively net-zero CO₂ emissions.
NTT Anode Energy, together with NTT DOCOMO, contributes to a carbon-neutral society through the active use of renewable energy.
