NTT West to Introduce Off-site PPA for its Headquarters Building

NTT West Corporation (Headquarters: Osaka, Osaka Prefecture; President: Ryota Kitamura; hereinafter NTT West), as a symbolic initiative of its sustainability management, will begin introducing an off-site corporate PPA*1 (hereinafter, off-site PPA) to procure renewable energy (hereinafter, RE) on a long-term basis in collaboration with NTT Anode Energy Corporation (Headquarters: Minato-ku, Tokyo; President: Teruyuki Kishimoto; hereinafter NTT Anode Energy) at its headquarters building from April 1, 2026 (Wednesday).

Through this initiative, the electricity used at the headquarters building will be made effectively 100% renewable through the use of RE-derived electricity*2 via the off-site PPA and the utilization of RE-designated non-fossil fuel certificates*3.
This aims to achieve both the realization of a decarbonized society and sustainable business growth by reducing greenhouse gas emissions.

1. Background and Purpose

NTT West has been considering reducing greenhouse gas emissions from its own business activities by introducing RE, etc., toward the realization of carbon neutrality by fiscal 2040 as stated in the NTT Group's new environmental energy vision, "NTT Green Innovation toward 2040."

Now, in collaboration with NTT Anode Energy, NTT West will begin introducing an off-site PPA to procure RE on a long-term basis for its four headquarters buildings (Location: Miyakojima-ku, Osaka, Osaka Prefecture), and will use RE-derived electricity at the headquarters building from April 1, 2026 (Wednesday).

This is expected to result in an annual reduction of approximately 3,000 tons*5 of greenhouse gas emissions, with approximately 7 million kWh*4 of electricity per year coming from RE sources.

2. Initiative Overview

A Corporate PPA (Power Purchase Agreement) is a contract in which a consumer purchases RE-derived electricity from a power generation company over the long term via a retail electricity provider. An off-site PPA is a model in which electricity is transmitted from a remote power generation facility to the consumer (in this case, the headquarters building) via the transmission and distribution network. In this off-site PPA, NTT Anode Energy reduces risks during disasters, etc., by diversifying the solar power plants it has developed across multiple locations.

(1) Start Date:

　April 1, 2026 (Wednesday)

(2) Location:

　Miyakojima-ku, Osaka, Osaka Prefecture
　NTT West Headquarters 4 buildings (NTT WEST i-CAMPUS Building A, Building B, QUINTBRIDGE, PRISM)

3. Future Development

The NTT West Group positions the realization of carbon neutrality by fiscal 2040 as a key issue.
Starting with the introduction of the off-site PPA at our headquarters, we will proceed with expanding the introduction of RE to other locations and creating decarbonization solutions in collaboration with local communities and customers.

In addition, NTT Anode Energy will work on the advanced introduction and use of RE, strive to meet the needs of society and consumers, and contribute to the realization of carbon neutrality for society as a whole.

*1 A Corporate PPA (Power Purchase Agreement) is a contract for a consumer to purchase RE electricity from a power producer over the medium to long term. An off-site PPA is an abbreviation for an off-site corporate PPA, a model in which electricity is transmitted from a remote power generation facility to the consumer (in this case, the four NTT West headquarters buildings) via the general transmission and distribution operator's grid. Solar power plant