~New 98MW-DC Solar Power Plants for Tokyu Corporation~ Highest Adoption Rate Among Major Private Railways! Approximately 30% of Railway Operations' Electricity to Come from "Additional Renewable Energy" via Corporate PPA

Tokyu Corporation (hereinafter, "Tokyu Corporation") will procure electricity and environmental value derived from "additional" renewable energy (hereinafter, "RE") for 25 years starting from fiscal year 2026. This will be sourced from new solar power plants totaling approximately 98MW-DC, developed nationwide by multiple power generation limited liability companies (hereinafter, "the SPCs") invested in by Tokyu Corporation (hereinafter, "Tokyu") and others, specifically for Tokyu Corporation, utilizing Corporate PPAs*1. The procured electricity will be used for a portion of the power required for operations on the Tokyu Toyoko Line, Meguro Line, Tokyu Shin-Yokohama Line, Den-en-toshi Line, Oimachi Line, Ikegami Line, and Kodomonokuni Line.

The solar power plants developed by the SPCs will sequentially commence operation and supply between April 2026 and the end of fiscal year 2027. Through this initiative, by fiscal year 2028, approximately 30% (approximately 110 million kWh/year) of the approximately 370 million kWh/year*3 of electricity consumed for Tokyu Line operations will be electricity with environmental value, derived from additional RE, directly contributing to the increase of new RE facilities through Corporate PPAs. This will represent the highest adoption rate*4 among major private railways.

As Japan's first initiative, Tokyu Corporation has already been operating all its lines with 100% RE-derived electricity since April 2022*5, through RE menus*6 provided by retail electricity providers. In addition to this, by undertaking this new initiative, Tokyu Corporation, as a major electricity consumer, will further address environmental concerns, contribute to the creation of RE sources, and enhance its role in supporting electricity infrastructure.

In this initiative, Tohoku Electric Power Co., Inc. (hereinafter, "Tohoku Electric Power"), which has a proven track record and expertise in power procurement and supply-demand operations, and Tokyu Power Supply Co., Ltd. (hereinafter, "Tokyu Power Supply"), which provides electricity services rooted in communities, primarily along Tokyu lines, will jointly supply electricity.

Going forward, the Tokyu Group and Tohoku Electric Power will further collaborate to promote the widespread adoption of additional RE through the development of solar power generation (energy creation) and the utilization of storage batteries (energy storage), including the use of off-site Corporate PPAs, thereby contributing to the realization of a decarbonized society.

*1 A contract method where a power generator, the owner of an RE source, and a power purchaser enter into a power purchase agreement for RE electricity at a pre-agreed price and term.

*2 An important indicator in RE procurement, showing contribution to the increase of new RE facilities through procurement.

*3 Actual results for fiscal year 2024.

*4 According to Tokyu Corporation (as of March 2026).

*5 Electricity for the operation of Setagaya Line stations has been implemented since April 2023.

*6 Non-fossil certificates with tracking, from power plants that have been in operation for 15 years or less.

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【Attachment】

■Overview of this Initiative

1. Scheme

Towards the realization of a decarbonized society, Tokyu is promoting the development of solar power plants as an energy creation initiative, in collaboration with various partner companies, with the goal of stabilizing RE procurement for the Tokyu Group. This initiative is realized by Tokyu Power Supply and Tohoku Electric Power jointly providing electricity and environmental value from solar power plants developed by the SPCs (invested in by Tokyu and others) to Tokyu Corporation, utilizing off-site Corporate PPAs.

　(Roles of each company)

2. Tokyu Corporation's Procurement Start Date

Sequentially from April 2026

3. Target Lines for this Initiative (Current Plan)

Tokyu Toyoko Line, Meguro Line, Tokyu Shin-Yokohama Line, Den-en-toshi Line, Oimachi Line, Ikegami Line, and Kodomonokuni Line

4. Development Plan for New Solar Power Plants for Tokyu Corporation (Installed capacity in operation at each point)

As of the beginning of FY2026: Approximately 12MW-DC

As of the end of FY2026: Approximately 60MW-DC

As of the end of FY2027: Approximately 98MW-DC

5. Estimated Power Generation (FY2028)

Approximately 110 million kWh/year

(Equivalent to approximately 30% of the electricity consumed for Tokyu Line operations, approximately 370 million kWh/year*1)

(Reference) CO2 Emission Reduction Contribution: Approximately 46,530 t-CO2 per year (estimated for FY2028)*2

　　　　　　　　　　　　　　　　(Equivalent to approximately 27,862 Japanese households*3)

*1 Actual results for fiscal year 2023.

*2 Estimated by multiplying the estimated RE generation volume developed in this initiative by the national average coefficient of 0.000423 t-CO2/kWh from the Ministry of the Environment's announced electricity retailer specific emission factors (FY2023 actual results). Does not include non-fossil certificate adjustment rates.

*3 Calculated from CO2 emissions per household's annual electricity energy consumption, based on the Ministry of the Environment's "FY2023 Household Sector CO2 Emission Survey Results (Confirmed Value)".

■Tokyu's Environmental Vision 2030 and Environmental Vision 2040

The Tokyu Group formulated "Environmental Vision 2030" in March 2022 to realize a decarbonized and circular society, and has declared the promotion of "creating RE" initiatives, including solar power generation, among the 11 actions set to achieve its goals.

In September 2025, to further promote initiatives for realizing a city in harmony with the environment, "Environmental Vision 2040" was formulated, updating the conventional achievement targets for FY2030 to a higher level and newly setting achievement targets for FY2035 and FY2040.

Environmental Vision 2040 URL: https://tokyu.disclosure.site/ja/135/

■Main Initiatives for a Decarbonized Society at Tokyu Corporation

1. "Energy Saving" Initiatives

・Introduction of new train models

Tokyu Corporation has actively introduced highly energy-efficient train models. In 2018, new models "2020 series" were introduced on the Den-en-toshi Line, and "6020 series" for Oimachi Line express services. In 2019, "3020 series" were introduced on the Meguro Line. These new models reduce power consumption by approximately half compared to older models (8500 series) through high-efficiency drive of main motors using control devices with next-generation semiconductor elements, and the adoption of LEDs for interior lighting, headlights, and taillights. From 2025, "6020 series" are being sequentially introduced for Oimachi Line local services.

・Driving ingenuity

Tokyu Lines implement "eco-driving," where drivers reduce power consumption through driving techniques. This method involves increasing the time spent "coasting" (running on inertia) by stopping acceleration once a certain speed is reached, thereby reducing the time spent "powering" (accelerating), which consumes more electricity. "Eco-driving" is made possible without delays by utilizing natural acceleration/deceleration due to gradients and leveraging spare time in the timetable.

・LED lighting conversion

Efforts are being made to reduce power consumption by converting various lighting facilities to LED. As of March 2026, LED conversion of vehicle lighting is fully completed, and 92% of station lighting has also been converted to LED.

・Energy saving for air conditioning and ventilation equipment with station renewals

For the renewal of Komazawa-Daigaku Station on the Den-en-toshi Line, energy saving for air conditioning and ventilation equipment has been achieved through efficient operation, even while new installations and enhancements were made compared to conventional systems. This was accomplished by introducing "Cloud SCADA," a system that enables remote monitoring and operation of air conditioning and ventilation equipment, and "commissioning," a process to confirm, verify, and optimize to ensure expected environmental performance is reliably achieved.

・Introduction of station auxiliary power supply system

Tokyu Corporation has adopted regenerative braking for all its vehicles, aiming to save energy by supplying electricity generated when a running train brakes (regenerative power) to other trains running nearby. At Minami-Machida Grandberry Park Station on the Den-en-toshi Line, a "station auxiliary power supply system" was introduced in 2025 to further effectively utilize regenerative power. This system allows regenerative power to be converted and used for lighting and other purposes at the station.

2. "RE" Utilization Initiatives

Starting with the Setagaya Line in 2019, Tokyu Lines have been operating with virtually 100% RE-derived electricity since 2022, utilizing non-fossil certificates with tracking.

3. "Energy Storage" Initiatives

To strengthen BCP (Business Continuity Plan) in the event of large-scale disasters, efficiently utilize railway power, and contribute to grid stabilization, a large-scale storage battery system (output: 2.1MW, capacity: 10MWh) is being developed at the Ichigao substation, which supplies power to the Den-en-toshi Line (scheduled to commence operation in FY2026).

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■Company Profile

Company Name: Tokyu Corporation

Location: 8-16 Shinsen-cho, Shibuya-ku, Tokyo

Established: April 25, 2019

Business Activities: Railway business

URL: https://www.tokyu.co.jp/railway/company/

Company Name: Tokyu Corporation

Location: 5-6 Nanpeidai-cho, Shibuya-ku, Tokyo

Established: September 2, 1922

Business Activities: Real estate business, real estate sales, other businesses

URL: https://www.tokyu.co.jp/company/

Company Name: Tokyu Power Supply Co., Ltd.

Location: Setagaya Business Square Tower, 4-10-1 Yoga, Setagaya-ku, Tokyo

Established: October 1, 2015

Business Activities: Electricity retail business, gas brokerage business

URL: https://www.tokyu-ps.jp/