Launch of 'Disaster-Prevention Low-Voltage Battery Station' Business in Response to the FY2026 Supply-Demand Adjustment Market

Mediotec Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; Representative Director: Hidemori Matsumoto; hereinafter "the Company") has reached a basic agreement on a business partnership with three companies: ESCO Corporation (Headquarters: Okayama City, Okayama Prefecture; Representative Director: Hidenori Kitayama), which will jointly handle business planning, sales, and construction, and Hirasol Energy Co., Ltd. (Headquarters: Bunkyo-ku, Tokyo; Representative Director: Min Li), which will handle the development of the Energy Management System (EMS) and aggregation. Through this partnership, the Company will further promote the construction of a Virtual Power Plant (VPP) that bundles distributed energy resources such as solar power and storage batteries, and will officially launch a low-voltage grid storage battery business in fiscal year 2026 that complies with the supply-demand adjustment market. ■ Background and Initiatives of the Business In Japan, securing adjustment capacity to balance electricity supply and demand has become a critical social issue alongside the expansion of renewable energy adoption. In particular, the role of storage batteries as a flexible adjustment resource to respond to fluctuations in renewable energy output is rapidly increasing, and the structure of power infrastructure is shifting significantly from "centralized" to "distributed." Amidst this, the regulatory change allowing low-voltage (under 50kW) resources to participate in the supply-demand adjustment market starting in fiscal year 2026 represents the creation of a new growth area in the energy sector. To date, the Company has accumulated a track record of introducing distributed power sources nationwide through the development and sale of low-voltage solar power generation. In this business, leveraging that expertise and customer base, we will build a new business model that accelerates the social implementation of distributed energy by integrally realizing: - Development and supply of low-voltage storage batteries - Integrated control of distributed resources (EMS) - Market utilization through aggregation This initiative creates new value for small-scale land that was previously difficult to utilize and contributes to the formation of regionally distributed energy infrastructure, marking an important step toward the realization of the VPP concept advocated by the Company. ■ Business Features In this business, we aim to create an unprecedented distributed energy investment market by standardizing 49.9kW/100kWh PCS-integrated storage batteries and enabling their installation on small-scale land. The features of this business are as follows: 1. Contribution to Disaster Prevention and Regional Resilience While these battery stations generate revenue by participating in the supply-demand adjustment market during normal times, they serve as emergency power sources attached to the batteries to supply electricity to the region during large-scale power outages. By installing them in a distributed manner on small-scale land, we aim to form a robust regional power network that does not rely on specific facilities. 2. Revenue Model Leveraging Regulatory Changes Following the lifting of the ban on low-voltage participation in the supply-demand adjustment market from fiscal year 2026, the Company will move quickly to enter the market. We will realize integrated control via J-EMS (EMS/aggregation system) and continuous revenue generation through aggregation. 3. Investment Scheme Accessible to Individuals and SMEs With a standard investment scale of approximately 20 million yen (excluding tax) per project, we are opening up energy infrastructure investment, which was previously limited to large-scale facilities, to individual investors and SMEs. It can also be utilized as a new option for land utilization. ■ Roles and Strengths of the Three Companies | Mediotec Co., Ltd. | Business Planning & Sales Management Utilizing nationwide low-voltage solar development track record and customer base ESCO Corporation | Construction & On-site Support Reliable construction quality and rapid deployment capability Hirasol Energy Co., Ltd. | Provision of J-EMS (EMS/Aggregation System) Maximizing market revenue with advanced control technology ■ Future Outlook Through this business, based on the customer base and development know-how cultivated in low-voltage solar power generation, the Company will strive to evolve into a "business model that integrates the development, sales, and operation of distributed energy assets." In the future, through the expansion of low-voltage storage battery adoption and integrated operation via aggregation, we aim to build an energy platform that bundles energy assets distributed across Japan. ■ Business Launch and Inquiries This business will commence on April 1, 2026, and we will begin accepting individual consultations on the same day for the service areas of Tohoku Electric Power, Tokyo Electric Power, Chubu Electric Power, Kansai Electric Power, and Kyushu Electric Power. Consultation topics include introduction concepts, land utilization, business schemes, etc. Please note that feasibility and conditions for installation vary depending on location, legal regulations, grid connection status, etc. ■ Contact Information Mediotec Co., Ltd. Low-Voltage Grid Storage Battery Division: Sakigami MAIL: marke@mediotec.co.jp