Tokyo Metro Introduces Off-site Physical PPA at General Training and Training Center
Tokyo Metro introduces an off-site physical PPA combining onshore wind and agro-photovoltaic power sources with hourly matching for its General Training and Training Center.
📋 Article Processing Timeline
- 📰 Published: March 31, 2026 at 23:00
- 🤖 AI Analyzed: June 2, 2026 at 12:56 (1501h 56m after Published)
Cosmo Eco Power Co., Ltd. (Head Office: Shinagawa-ku, Tokyo; President and CEO: Fumiaki Nokura; hereinafter "Cosmo Eco Power"), a group company of Cosmo Energy Holdings Co., Ltd. (President and CEO: Shigeru Yamada), and Cosmo Energy Solutions Co., Ltd. (Head Office: Chuo-ku, Tokyo; President and CEO: Yasuyuki Kawamura; hereinafter "Cosmo Energy Solutions"), together with Tokyo Metro Co., Ltd. (Head Office: Taito-ku, Tokyo; President and CEO: Akihiro Kosaka; hereinafter "Tokyo Metro"), have concluded an off-site physical PPA*1 (Power Purchase Agreement; hereinafter "this Agreement") utilizing a combination of onshore wind and agro-photovoltaic power sources for Tokyo Metro's General Training and Training Center, the first of its kind for a subway operator.
Electricity supply under this Agreement will commence in April 2026, and is expected to reduce CO₂ emissions by approximately 719 tons, equivalent to the annual electricity consumption of Tokyo Metro's "General Training and Training Center."
This Agreement combines wind power from Cosmo Eco Power's own Aizu Wakamatsu Wind Farm with agro-photovoltaic power from EneGlobal Co., Ltd., procured as an aggregator*2. The electricity generated from these sources will be supplied to Tokyo Metro's "General Training and Training Center" through Cosmo Energy Solutions, a retail electricity provider. This scheme aims to improve the hourly matching ratio*3 by combining wind and solar power sources. Furthermore, during hours when wind and solar power sources cannot cover the demand, electricity derived from the market will be supplied in combination with non-fossil value derived from renewable energy sources operated and contracted by Cosmo Eco Power.
As members of the Cosmo Energy Group, Cosmo Eco Power and Cosmo Energy Solutions are committed to developing and expanding the supply of renewable energy, including wind power generation, to achieve "2050 Carbon Net Zero." Moving forward, they will continue to strengthen cooperation with demand-side customers promoting decarbonization, contributing to the widespread adoption of renewable energy and the development of local communities.
Tokyo Metro has set the long-term environmental target "Metro CO₂ Zero Challenge 2050," aiming for "53% reduction by FY2030 (compared to FY2013) and virtually zero by FY2050" for CO₂ emissions from all Tokyo Metro Group operations. To date, the company has introduced energy-efficient rolling stock and environmentally friendly facilities. Moving forward, Tokyo Metro will continue to contribute to the realization of a "decarbonized and circular society" by utilizing various means, including the use of renewable energy, to achieve its goals.
Tokyo Metro General Training and Training Center
Location
Koto-ku, Tokyo
Facility Overview
Training line (total length approx. 700m, 3 mock stations),
Training building (5 stories above ground)
Aizu Wakamatsu Wind Farm
(Onshore Wind)
Location
Aizu Wakamatsu City, Fukushima Prefecture
Facility Capacity
16,000kW
EneGlobal Co., Ltd.
Naka City No. 9 Power Plant
(Agro-Photovoltaic)
Location
Naka City, Ibaraki Prefecture
Facility Capacity
DC1,155 / AC792kW
※1 Off-site Physical PPA: A contract model where a consumer procures electricity and environmental value from a renewable energy power plant installed outside their own premises.
※2 Aggregator: An operator that bundles and manages multiple distributed power sources and demands to efficiently and stably supply electricity and adjust supply-demand.
※3 Hourly Matching Ratio: An indicator showing the percentage of electricity consumption that matches renewable energy generation on an hourly basis. It is also being considered in international discussions for revising the GHG Protocol from the perspective of enhancing the effectiveness of decarbonization.
FAQ
What is an Off-site Physical PPA?
It is a contract where a consumer procures electricity and environmental value from a renewable energy power plant located outside their premises.
What is the Hourly Matching Ratio?
It is an indicator showing the percentage of electricity consumption that matches renewable energy generation on an hourly basis.
How much CO₂ will be reduced by this contract?
An annual CO₂ reduction effect of approximately 719 tons, equivalent to the annual electricity consumption of Tokyo Metro's General Training and Training Center, is expected.