Mediotech Announces Launch of 'Disaster-Resilient Low-Voltage Power Storage Facility' Business in Response to FY2026 Supply-Demand Adjustment Market

Mediotech Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; Representative Director: Hidemori Matsumoto; hereinafter "the Company") has reached a basic agreement on a business alliance with Esco Corporation (Headquarters: Okayama City, Okayama Prefecture; Representative Director: Hidenori Kitayama) and Hirasol Energy Co., Ltd. (Headquarters: Bunkyo-ku, Tokyo; Representative Director: Min Li). Under this alliance, Mediotech and Esco Corporation will be responsible for business planning, sales, and construction, while Hirasol Energy Co., Ltd. will handle the development of EMS (Energy Management System) and aggregation.

Through this alliance, the Company will further promote the construction of Virtual Power Plants (VPPs) that bundle distributed energy resources such as solar power generation and storage batteries, and will officially launch a low-voltage grid-connected storage battery business in response to the supply-demand adjustment market from FY2026.

■ Background and Initiatives of the Business Launch

In Japan, with the expansion of renewable energy introduction, securing power supply-demand balancing capability has become a critical social issue.

In particular, the role of storage batteries as a flexible adjustment capability to cope with fluctuations in renewable energy output is rapidly increasing, and the nature of power infrastructure is undergoing a major shift from "centralized" to "distributed."

In this context, the institutional reform allowing low-voltage (under 50kW) resources to participate in the supply-demand adjustment market from FY2026 signifies the creation of a new growth area in the energy sector.

The Company has accumulated a track record of introducing distributed power sources nationwide through the development and sales of low-voltage solar power generation.

In this business, leveraging that knowledge and customer base, we will build a new business model that accelerates the social implementation of distributed energy by realizing:

・Development and supply of low-voltage storage batteries

・Integrated control of distributed resources (EMS)

・Market utilization through aggregation

This initiative will create new value even in small-scale sites that were previously difficult to utilize, contributing to the formation of a regionally distributed energy infrastructure, and represents an important step towards realizing the VPP concept advocated by the Company.

■ Business Features

This business aims to create an unprecedented distributed energy investment market by standardizing a 49.9kW/100kWh PCS-integrated storage battery, enabling installation in small-scale sites.

The features of this business are as follows:

1. Contribution to disaster prevention and regional resilience

This power storage facility will normally generate revenue by participating in the supply-demand adjustment market, and in the event of a large-scale power outage, it will supply power to the community as an emergency power source attached to the storage battery. By decentralized installation in small-scale sites, we aim to form a robust regional power grid that does not depend on specific facilities.

2. Revenue model utilizing institutional reform

With the lifting of restrictions on low-voltage participation in the supply-demand adjustment market from FY2026, the Company will quickly enter the market. We will achieve integrated control through J-EMS (EMS and aggregation system) and continuous revenue generation through aggregation.

3. Investment scheme accessible to individuals and SMEs

With a standard investment size of approximately 20 million JPY (excluding tax) per project, energy infrastructure investment, which was previously limited to large-scale facilities, will be opened up to individual investors and small and medium-sized enterprises. It can also be utilized as a new option for land utilization.

■ Roles and Strengths of the Three Companies

Mediotech Co., Ltd. Business planning and sales management

Utilizing nationwide low-voltage solar power development track record and customer base

Esco Corporation Construction and on-site support

Reliable construction quality and rapid deployment capability

Hirasol Energy Co., Ltd. Provision of J-EMS (EMS and aggregation system)

Maximizing market revenue with advanced control technology

■ Future Outlook

Through this business, the Company will evolve into an "integrated business model for the development, sales, and operation of distributed energy assets," based on the customer base and development know-how cultivated through low-voltage solar power generation.

In the future, we aim to build an energy platform that bundles distributed energy assets across Japan through the expansion of low-voltage storage battery introduction and integrated operation through aggregation.

■ Business Start and Acceptance

This business will commence on April 1, 2026, and individual consultations will begin on the same day for target areas including Tohoku Electric Power, Tokyo Electric Power, Chubu Electric Power, Kansai Electric Power, and Kyushu Electric Power service areas.

Consultation topics include introduction image, land utilization, and business scheme. Please note that installation feasibility and conditions vary depending on location, legal regulations, and grid connection status.

■ Contact Information

Mediotech Co., Ltd.

Low-voltage grid-connected storage battery 담당: Sakigami

MAIL: marke@mediotec.co.jp