Tokyu Power Supply Fully Enters Grid-Scale Battery Storage Business, Operations to Start in FY2026

Under the business concept of a smart lifestyle navigator, Tokyu Power Supply Co., Ltd. (Headquarters: Setagaya-ku, Tokyo; President: Kazuhiro Miyo) is committed to realizing a smart and environmentally friendly society. The company will enter the grid-scale battery storage business to further expand 'energy creation' and 'energy storage.' The first battery storage facility will commence operations in Omaezaki City, Shizuoka Prefecture, in April 2026. Subsequently, facilities in Tsu City, Mie Prefecture, will start in May, and Ota City, Gunma Prefecture, in June of the same year. The company has been engaged in activities aimed at expanding a 'decarbonized and circular society,' primarily along the Tokyu Line. These include supporting the operation of the Tokyu Setagaya Line with 100% renewable energy, supplying electricity from the 'Setagaya Ward Miura Solar Power Plant' to bus stops within Setagaya Ward for local renewable energy consumption, and providing CO2-free electricity to large-scale Tokyu Group commercial facilities through off-site PPAs. In recent years, the rapid spread of solar power generation has led to a noticeable surplus of electricity during the daytime. From the perspective of realizing a 'decarbonized and circular society,' the company believes that the effective utilization of this renewable energy is essential. If surplus daytime solar power can be charged and used for nighttime supply, the utilization of renewable energy will be promoted, increasing the share of CO2-free electricity 24 hours a day and contributing to NDC*1. By entering the battery storage business, the company will respond to future changes in the business environment, such as accelerating decarbonization. By participating in aggregation businesses*2 that consolidate various distributed power sources, the company aims to further expand business profits while contributing to the expansion of renewable energy introduction and addressing supply-demand tightness. This will also improve the economic efficiency of power procurement and expand renewable energy acceptance capacity in the electricity retail business, which has been liberalized for 10 years, leading to enhanced customer value. The company will continue to actively work towards realizing a carbon-neutral society by seeking models for a society in harmony with the environment and contributing to problem-solving. ■ Project Manager's Comment Moving forward, the company will engage in both self-owned grid-scale battery storage facilities and the aggregation of third-party owned facilities. This marks a shift from a traditional electricity and gas retail-only business to multiple power business domains. Even with anticipated significant fluctuations in decarbonization progress and energy supply-demand structures, the company believes it can proactively address these challenges with a resilient and diversified business structure. Furthermore, as a business operator that can meet societal demands, the company intends to contribute to the long-term expansion of renewable energy acceptance capacity. *1 and *2 refer to the attached document. Construction: Sunvillage Co., Ltd. *When charged and discharged once a day, it is equivalent to the daily consumption of approximately 750 general households. [Attachment] *1: NDC (Nationally Determined Contribution) Official name: Nationally Determined Contribution This specifies each country's efforts to reduce emissions and address climate change to achieve the long-term goals for greenhouse gas reduction set forth in the Paris Agreement. Japan, in its 2035/2040 NDC submitted in February 2025, declared its ambition to reduce greenhouse gas emissions by 60% and 73% respectively by fiscal years 2035 and 2040 compared to fiscal year 2013, aiming for net-zero by 2050. *2: Aggregation Business This is a next-generation energy business that controls numerous distributed energy resources such as storage batteries, making them function like a Virtual Power Plant. It contributes to promoting the utilization of renewable energy, improving resilience during disasters, and building an economical power system. ■ TPS Shizuoka Omaezaki 01 Battery Storage Facility Photo