Regional Power Cultivated by "Karaoke Manekineko"! Industry's First Garage Rooftop Power Plant Launches Localized Electricity Consumption

Koshidaka Co., Ltd. (Location: Shibuya-ku, Tokyo, President and CEO: Hiroshi Koshidaka), a consolidated subsidiary of Koshidaka Holdings Co., Ltd., today announced that it has entered into an agreement on July 1, 2026, for a "Regionally Distributed, Locally Consumed Corporate PPA" with UPDATER Inc. (Location: Setagaya-ku, Tokyo, President and CEO: Eiji Oishi) and Kakuichi Co., Ltd. (Headquarters: Nagano City, Nagano Prefecture, President and CEO: Riyo Tanaka). This agreement aggregates numerous low-voltage solar power plants (4.95-9.90kW class) installed on existing container/garage rooftops to procure electricity.

Under this agreement, starting August 2026, 100% renewable energy (Note 1) generated by regional solar power plants will be sequentially supplied to 41 Karaoke Manekineko stores across five areas: Tohoku, Hokuriku, Kansai, Chugoku, and Shikoku. By matching stores with power plants within the same region, this initiative promotes the circulation of electricity charges within the region and achieves direct procurement of distributed renewable energy, independent of large-scale power plants. The supply system, spread across 61 locations in 5 areas, possesses high resilience unique to distributed systems, allowing other locations to mutually cover if one power generation site stops. This structure, not relying on distant large-scale power plants, enhances the stability of regional power supply during disasters and power outages, leading to the formation of a robust regional energy infrastructure. Through these efforts, we aim to contribute to the development of sustainable local communities and economic revitalization. This is the first initiative of its kind in the karaoke industry to adopt a "Regionally Distributed, Locally Consumed Corporate PPA" by "Karaoke Manekineko" in Japan. (Self-researched as of the end of May 2026).

Note 1: 100% renewable energy electricity is supplied by combining electricity from renewable energy sources with the environmental value of non-fossil certificates designated for renewable energy. CO2 emissions will also be zero.

Background of the Initiative

Renewable energy adoption is currently a mandatory trend, particularly among major corporations. However, large-scale ground-mounted solar power generation, which involves forest clearing, faces rapidly strengthening legal regulations from the government due to risks of sediment disasters, environmental destruction, and challenges in gaining consensus from local residents. Consequently, demand for methods of procuring energy without damaging the natural environment is increasing (Note 2). In response to these social issues, UPDATER has consistently focused on procurement from sustainable power plants that do not cause environmental destruction. Furthermore, it is pioneering the industry not just in renewable energy adoption, but also in achieving "local consumption of locally produced energy" by circulating that electricity within the region.

This project is part of that effort. Kakuichi has established a clean procurement system that involves no new land development by leasing and effectively utilizing the rooftops of existing garages and containers, primarily from farmers and other owners. By combining this with our proprietary blockchain technology, "ENECTION2.0" (Note 3), we have realized a matching supply that connects numerous distributed power sources scattered across regions with individual stores, which was technically difficult until now.

This innovative system enables direct procurement of renewable energy, overcoming the physical limitations unique to "Karaoke Manekineko," which often opens stores in urban areas or within buildings and cannot own its own power generation facilities. At the stores, a new cycle is created where the electricity charges from local residents enjoying entertainment are directly returned to local power plants. As the entire town becomes richer through this regional circulation, the stores, as members of the community, can continue their operations to be loved and rooted for the long term. This Regionally Distributed, Locally Consumed Corporate PPA, which simultaneously achieves environmental consideration, regional contribution, high disaster resilience, and store longevity, is set to become a new standard in the market. Starting with this project, the three companies aim to create a new market trend moving towards regional symbiosis, not just simple renewable energy adoption, and to strongly drive the development of a sustainable energy society.

Note 2: Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry | Utilizing Rooftop Space for Renewable Energy! What is the New Reporting System for "Rooftop Solar Power Generation"? | https://www.enecho.meti.go.jp/about/special/johoteikyo/rooftop_solar.html Note 3: ENECTION2.0: A tracking system that realizes electricity traceability by converting the amount of electricity generated by power plants (kWh) into tokens and then exchanging tokens equivalent to the amount of electricity consumed by corporate customers.

Overview of Regionally Distributed, Locally Consumed Corporate PPA

Unlike the "Off-site PPA" adopted by many RE100 companies, which procures electricity through long-term contracts from mega-solar plants built on vast land, the Regionally Distributed, Locally Consumed Corporate PPA is a new PPA model that aggregates numerous low-voltage solar power plants (4.95-9.90kW class) installed on existing container/garage rooftops to procure electricity.

Small-scale solar power on Kakuichi's container/garage rooftops

Features of Regionally Distributed, Locally Consumed Corporate PPA

Conceptual diagram of Regionally Distributed, Locally Consumed Corporate PPA

1. Zero New Land Development (Environmental Consideration)

This is low-environmental-impact solar power generation that makes effective use of existing container/garage rooftops, without any new forest clearing or land development.

2. "Local Consumption of Locally Produced Energy" Model

Achieves clean regional circulation of energy, where renewable energy generated in a region is consumed by stores in the same region.

3. Resilience (Disaster Preparedness) Against Disasters

Compared to typical off-site PPAs that transmit power from distant power plants, this system utilizes electricity within the premises, making it robust against disasters and power outages.

Supply Start: Scheduled for August 2026

Supplier: Koshidaka Co., Ltd. (Dogenzaka, Shibuya-ku, Tokyo)

Power Plant: Kakuichi Co., Ltd. (Tsuruga Midori-cho, Nagano City, Nagano Prefecture)

Generation Method: Rooftop solar power generation

Equipment Capacity: 61 power plants x average approx. 8kW = Total installed capacity approx. 490kW (AC base)

Contract Type: Corporate PPA (Physical PPA / Off-site type)

Contract Period: 20 years

* The electricity used by Koshidaka has been supplied at 100% renewable energy from Minna Denryoku. The conclusion of this Corporate PPA further strengthens the procurement system and newly realizes regionally distributed local consumption.

Comment from Hiroshi Koshidaka, President and CEO of Koshidaka Co., Ltd.

As the introduction of renewable energy is essential for a decarbonized society, procuring locally produced and consumed energy without harming the environment is the responsibility of companies going forward. Karaoke Manekineko's numerous store openings within buildings presented a barrier as we couldn't own power generation facilities, but this innovative system, which allows us to utilize local electricity without land development, was the deciding factor for adoption. In the future, we aim for a new future of regional coexistence where customers enjoying themselves at our stores enriches local power plants, and the stores endure together with the region. We will be pioneers in creating a new society where enjoyment and sustainability coexist, strongly leading the industry.

About Koshidaka Holdings Co., Ltd.

Koshidaka Holdings Co., Ltd. is an entertainment company that operates primarily the karaoke business of "Karaoke Manekineko" with the vision of "Entertainment as Infrastructure." Through industry-first initiatives such as allowing food and drink to be brought in and making all rooms non-smoking, we have provided a "daily entertainment" space that anyone can enjoy casually. By continuously providing advanced and valuable services and products to people worldwide, we aim to contribute to the realization of enriched leisure lifestyles and the construction of a peaceful world full of hope.

Koshidaka Holdings Co., Ltd. Official HP https://www.koshidakaholdings.co.jp/ja/index.html Koshidaka Co., Ltd. Official Website https://www.koshidaka.co.jp/ Karaoke Manekineko Official Website https://www.karaokemanekineko.jp/

Karaoke Manekineko Official X https://x.com/maneki_official

Karaoke Manekineko Official TikTok https://www.tiktok.com/@maneki_official

Company Profile

Company Name: Koshidaka Holdings Co., Ltd. Tokyo Stock Exchange Prime (Securities Code: 2157)

Location: Dogenzaka-dori 10F, 2-25-12 Dogenzaka, Shibuya-ku, Tokyo

President and CEO: Hiroshi Koshidaka

Established: March 1967

Capital: 2.57 billion yen (as of the end of February 2026)

Number of Stores: 816 stores in 5 countries including Japan (as of the end of February 2026)

Sales: 69.387 billion yen (Consolidated for the fiscal year ending August 2025)

About UPDATER Inc.

Changed its name from Minna Denryoku Co., Ltd. on October 1, 2021. It addresses social issues by providing services centered on traceability and transparency for corporations and individuals. It operates "Minna Denryoku," a decarbonization business that commercialized electricity traceability for the first time in the world; "Minna Works," which transforms the labor market with well-being; "Shift C," which evaluates and publicizes the ethicality of brands; "TADORi," an e-commerce platform for purchasing based on the background and stories of products; "Minna Shouten," which handles products that consider people, society, and the environment; and "Minna Daichi," which promotes behavioral change in society towards soil regeneration. It has received numerous awards and certifications, including the Prime Minister's Award at the 4th Japan SDGs Awards, CDP Certified Renewable Energy Provider (one of only three in Japan), and B Corp certification as an energy provider.

Company Profile

Company Name: UPDATER Inc.

Location: Santa Tower Center Building 8F, 2-11-22 Sangenjaya, Setagaya-ku, Tokyo

President and CEO: Eiji Oishi

Established: May 25, 2011

Capital: 100 million yen (Additional paid-in capital 197,739,500 yen) *As of December 19, 2025

Business Activities: Develops SX services such as decarbonization business "Minna Denryoku," well-being, and biodiversity.

Corporate Website: https://www.updater.co.jp/

About Kakuichi Co., Ltd.

Founded in 1886 (Meiji 19), a comprehensive manufacturer with 140 years of history. It operates a wide range of businesses including warehouse garages, hoses, nanobubbles, solar power, and MaaS. It handles everything from manufacturing to sales and installation of warehouses and garages. It has a nationwide sales and installation network and extensive experience in collaboration with local governments and regional businesses.

Kakuichi values working together with local governments nationwide to think and act together on regional challenges, rather than just making proposals.

Official HP: https://www.kaku-ichi.co.jp/