Corporate Information
Service Information
This section provides information about actual or expected delays of 15 minutes or more for train services.
Corporate Information
Service Information
This section provides information about actual or expected delays of 15 minutes or more for train services.
For the sake of realizing a decarbonized society, Tokyo Metro supports the recommendations of the Task Force on Climaterelated Financial Disclosures (hereinafter referred to as TCFD), which was established by the Financial Stability Board (FSB) in March 2022. We have outlined our efforts below, from the perspectives of governance, strategy, risk management, and metrics and targets.
To promote environmental conservation activities, primarily in response to climate change and resource circulation, throughout the company, we have established an Environment Committee chaired by the executive officer in charge of the Sustainability Promotion Department. Based on our Basic Environmental Policy, we operate an environmental management promotion system in line with the plan-do-check-act (PDCA) cycle of environmental targets, activities, verification and evaluation, and review and improvement. In addition, in order to continually improve our environmental conservation activities, the Environment Committee meets at least twice a year to set environmental targets, verify and evaluate the progress of activities in each department, and report and review the results. In particular, we have set environmental policies, long-term environmental targets, and key performance indicators, for non-financial indicators related to climate change to achieve Theme 4 of our key sustainability issues (materiality), Making Thoughtful Choices for a Healthy Planet. These are submitted and reported to the Sustainability Promotion Committee (chaired by the chief sustainability affairs officer), the Executive Committee, and the Board of Directors at least once a year for climate-related risks and opportunities to be considered, approved, and followed up on. The relationship between the Environment Committee and the Sustainability Promotion Committee is described in the environmental management promotion framework below.
* The same governance system will be used to realize a sound material-cycle society
To accomplish Theme No.4 of our key sustainability issues (materiality), Making Thoughtful Choices for a Healthy Planet, as outlined in our Sustainability Management Vision, we have established a Basic Environmental Policy that outlines more specific directions for environmental conservation activities that every member of the Tokyo Metro Group should follow.
We have set two climate change scenarios: a scenario for realizing a decarbonized society (transition risks and opportunities) and a scenario in which global warming progresses (physical risks and opportunities). The decarbonized society scenario (transition risks and opportunities) is based on a world view in which the average temperature rise by the end of this century is limited to less than either 2°C or1.5°C, and it assumes a society in which social changes accompanying the transition to a decarbonized society are likely to have an impact on our business. The global warming progression scenario (physical risks and opportunities) assumes a society in which the average temperature rises by 4°C or more by the end of this century, and climate change due to this temperature rise is likely to have an impact on our business. For each scenario, the period up to 2030 is defined as the short- to medium-term and the period up to 2050 as the long-term.
Based on the two axes of the possibility and magnitude of impact, we have identified 12 risks and five opportunities and indicated the direction of efforts for each of them. Based on this scenario analysis, the Tokyo Metro Group has set the target of "Net zero by FY2051/3" as part of its Tokyo Metro Zero CO2 Challenge 2050 long-term environmental goal. We will work to reduce risks by responding to the introduction of a carbon tax and changes in the energy mix. In our new Mid-Term Management Plan, which began in FY2026/3, we are aiming for even greater heights, raising our FY2031/3 target for CO2 emissions reductions from the initial target of -50% to -53% (both compared to FY2014/3). Nearly all of the Group's CO2 emissions come from electricity, as the nature of subway operations requires a large amount of electricity to run trains and operate station facilities. To achieve our long-term environmental targets, we plan to reduce CO2 emissions from electricity by further promoting the energy conservation efforts we have been implementing continuously up until now and by switching to renewable energy sources. We also plan to offset CO2 emissions from fuels other than electricity using carbon credits and other such means. To promote these efforts, we introduced internal carbon pricing in April 2024.
Solar power generation systems are operated on platform roofs of above-ground stations and are used to power station facilities such as platform doors and escalators. We have also installed solar power generation systems at the Comprehensive Learning and Training Center.
CO2 reduction: 598 t-CO2 (FY2025/3 results)
Installed at 11 stations
Yotsuya Station on the Marunouchi Line; Minami-Senju Station on the Hibiya Line; Nishi-Kasai Station, Kasai Station, Urayasu Station, Minami-Gyotoku Station, Gyotoku Station, Myoden Station, Baraki-Nakayama Station, Nishi-Funabashi Station on the Tozai Line; Kita-Ayase Station on the Chiyoda Line (FY2025/3 results)
From April 2024, we introduced Aqua Premium, a renewable energy portfolio that supplies hydro power provided by TEPCO Energy Partner, Inc. and transitioned all the electricity used on the Marunouchi Line and Namboku Line (excluding Meguro Station) to renewable energy.
CO2 reduction: 61,000 t-CO2 (FY2025/3 results)
From April 2024, we introduced the Renewable Energy Company Support Plan provided by TEPCO Energy Partner, Inc. on the Tozai Line. In this Plan, a portion of the electricity uses the environmental value of surplus electricity from household solar power generation, making it in essence a partial transition to renewable energy.
CO2 reduction: 466 t-CO2 (FY2025/3 results)
CO2 reduction:13,650 t-CO2 (FY2025/3 results)
CO2 reduction:1,521 t-CO2 (FY2025/3 results)
CO2 reduction: Approx. 663 t-CO2 (FY2025/3 results)
CO2 reduction: Approx. 8,190 t-CO2 (FY2025/3 results)
Tokyo Metro has collaborated with manufacturers to develop and launch the railway industry's most efficient permanent magnet synchronous motor (PMSM) propulsion systems as well as silicon carbide-based Variable Voltage, Variable Frequency (VVVF) inverters. We will continue to pursue new energy-conserving technologies.
We are currently converting station lighting to LED, introducing
non-illuminated informational signs, and installing auxiliary power supply units* in stations. From FY2026/3, we will implement measures such as optimizing substation voltages across all lines, making even more effective use of regenerative power. Additionally, at seven stations, including Otemachi Station, we have concluded contracts with local heat supply companies to provide a service that effectively eliminates CO2 emissions from the heat used for station air-conditioning, etc., in an effort to reduce CO2 emissions.
We will conduct feasibility studies on making new buildings compliant with ZEB (net zero energy building) requirements and aim to obtain environmental building certifications. The office use sections of the Shinjuku West Gate Development Project have been certified as ZEB Ready, and the office floors of Shibuya Mark City have obtained 4-star DBJ Green Building certification for being part of "a building with outstanding environmental and social considerations."
As a result of our initiatives for energy conservation and renewable energy, our CO2 emissions per unit of transportation volume (the amount of CO2 emitted to transport one person a distance of one kilometer) in FY2025/3 was 9 g-CO2/ person/km. By encouraging more customers to use our services in the future, we hope to take advantage of the strengths of railways as an energy-efficient means of transportation that can transport more passengers using less energy and contribute to CO2 emissions reduction in Tokyo.
Tokyo Metro has always had preparations in place for flooding caused by typhoons and heavy rain. In addition, we have implemented comprehensive flood prevention measures that incorporate responses to emergencies such as the flooding of the Arakawa River, combining both physical and organizational measures to safeguard against flooding caused by typhoons and heavy rain. Physical measures include installing flood stop boards, flood prevention doors, and completely water-tight entrances and exits to prevent water from entering stations, installing flood status monitoring cameras, installing and upgrading flood prevention machines to prevent water from entering through ventilation openings on the road surface, installing flood prevention gates to prevent water from entering through tunnel openings, and installing flood prevention gates to prevent water from entering tunnel entrances in low-lying areas. Organizational measures include formulating business continuity plans for individual stations, including evacuation and flood prevention plans and train evacuation plans, and coordinating with local governments.
Thanks to the flood prevention measures implemented to date, we do not anticipate any significant damage to railway facilities unless the overflow of the Arakawa River leads to catastrophic flooding. We will continue to implement countermeasures against overflow of the Arakawa River while paying close attention to the increasing frequency and severity of storm and flood damage, and we will further strengthen flood prevention measures.
* Investments in flood prevention measures
* Investments made through FY2025/3: ¥15.7 billion
* FY2026/3 to FY2037/3: Approximately ¥24 billion (planned)
We have now estimated the financial impact of damage to railway facilities in the event of overflow of the Arakawa River, which would be particularly substantial. We will minimize such financial impact by implementing the comprehensive flood prevention measures that we currently have in place.
By combining the ratings for likelihood (3: Highly likely, 2: Possible, 1: Unlikely, 0: Highly unlikely) and "magnitude" (3: Large, 2: Medium, 1: Small, 0: Negligible) of the impacts of changes in the external environment based on the analysis of individual scenarios, namely the Decarbonized Society Realization Scenario (transition risks and opportunities) and the Global Warming Progression Scenario (physical risks and opportunities), we have identified 12 risks (five transition risks, seven physical risks) and five opportunities (four transition opportunities, one physical opportunity) as vital, with risks rated at six or more points and opportunities rated at four or more points. Going forward, the Sustainability Promotion Committee will follow up on the climate-related risks we have designated based on the TCFD recommendations, and we will also consider establishing a climate-related risk management system, including coordination with risk management across the entire Group.
We have set the following metrics and targets and will promote efforts to accomplish Tokyo Metro Zero CO2 Challenge 2050, our long-term environmental goal. We have already obtained third-party verification for these emissions.
Most of the CO2 emitted by the Tokyo Metro Group comes from electricity. We have been promoting energy conservation by replacing vehicles with more energy-efficient models, and will continue to do so in the future. In addition, we aim to achieve our FY2031/3 target (CO2 emissions at 53% of the FY2014/3 level) by replacing part of the electricity used with renewable power. From FY2031/3 to FY2051/3, our policy is to procure electricity from large-scale renewable sources and transition to 100% renewable power. Although our CO2 emissions from fuels other than electricity are low, we aim to achieve net zero emissions in FY2051/3 by utilizing offset credits and other measures.
We will review our procurement policies as necessary and select the most appropriate measures.
Applicable scope : Facilities and offices of the Railway Businesses and Urban Design and Lifestyle Creation Businesses of Tokyo Metro Group companies*3
Applicable period : April 1, 2024 to March 31, 2025
We have obtained third-party assurance to ensure the reliability of the supply chain emissions figures (Scope 1, 2, and 3) for the entire Tokyo Metro Group.
Verification Opinion (Sustainability Report 2024)
