Regional Power Fostered by 'Karaoke Manekineko'! Local Consumption of Electricity Begins with Kakuichi Garage Rooftop Power Plants

Kakuichi Co., Ltd. (Head Office: Nagano City, Nagano Prefecture, President: Riyo Tanaka), a comprehensive manufacturer involved in energy and regional revitalization starting from warehouse garages, has entered into a "Regionally Distributed, Locally Consumed Corporate PPA" agreement with Koshidaka Co., Ltd. (Head Office: Shibuya-ku, Tokyo, President: Hiroshi Koshidaka), which operates "Karaoke Manekineko," and UPDATER Inc. (Location: Setagaya-ku, Tokyo, President: Eiji Oishi). This agreement, effective July 1, 2026, consolidates numerous low-voltage solar power plants (4.95 to 9.90 kW class) installed on the rooftops of existing containers and garages to procure electricity.

Based on this agreement, starting from 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 each store with power plants within the same region, this initiative promotes the regional circulation of electricity charges and enables 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 any potential generation stoppages at a single site.

This structure, not reliant 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. Notably, "Karaoke Manekineko" is the first in the karaoke industry in Japan to adopt such a "Regionally Distributed, Locally Consumed Corporate PPA."

* As of the end of May 2026, according to Koshidaka Co., Ltd.

*1 100% renewable energy electricity is supplied by combining electricity derived from renewable energy with the environmental value of non-fossil certificates designated for renewable energy. Furthermore, CO2 emissions will be zero.

Background of the Initiative

Recently, the introduction of renewable energy has become an essential trend, particularly among major corporations.

However, large-scale ground-mounted solar power generation, which involves deforestation, faces rapidly strengthening legal regulations from the government due to challenges such as the risk of landslides, environmental destruction, and consensus building with local residents.

Consequently, demand for methods of procuring energy without harming the natural environment is increasing. (Note 2)

In response to these societal challenges, UPDATER has consistently focused on procurement from sustainable power plants that do not cause environmental destruction.

Furthermore, we are pioneering the industry by not only introducing renewable energy but also by ensuring its circulation within the region, achieving "local consumption alongside local production."

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

This innovative mechanism 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 power generation facilities. A new cycle is created where the electricity charges paid by local residents for their entertainment at the stores are directly returned to local power plants. As the entire town becomes richer through this regional circulation, the stores can continue their operations as a beloved and rooted part of the community for the long term. This Regionally Distributed, Locally Consumed Corporate PPA, which simultaneously achieves environmental consideration, community 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, beyond mere renewable energy introduction, and to strongly lead the development of a sustainable energy society.

*2 Ministry of Economy, Trade and Industry, Agency for Natural Resources and Energy | 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 *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 involves procuring electricity through long-term contracts from mega solar farms built on vast tracts of land, the Regionally Distributed, Locally Consumed Corporate PPA is a new PPA model that aggregates and procures electricity from numerous low-voltage solar power systems (4.95 to 9.90 kW class) installed on the rooftops of existing containers and garages.

▲ 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

Zero New Land Development (Environmental Consideration)

This is low-environmental-impact solar power generation that involves no new deforestation or land development, as it effectively utilizes existing container and garage rooftops.

"Local Production for Local Consumption" Model of Electricity

Achieves clean regional circulation of energy by consuming renewable energy generated in a region within stores in the same region.

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.

Start of Supply: Scheduled for August 2026 onwards

Supply Recipient: 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. 8 kW = Total installed capacity approx. 490 kW (AC base)

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

Contract Period: 20 years

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

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

As the introduction of renewable energy is essential for a decarbonized society, local procurement that does not harm the environment is a corporate responsibility for the future. Karaoke Manekineko often opens stores within buildings, and the inability to own power generation facilities was a barrier. This innovative mechanism, which utilizes local electricity without land development, became the deciding factor for adoption. Going forward, we aim for a new future of regional symbiosis 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 Kakuichi Co., Ltd.

A comprehensive manufacturer with a 140-year history, founded in 1886 (Meiji 19). It operates a wide range of businesses including warehouse garages, hoses, nanobubbles, and solar power, handling everything from manufacturing to sales and construction of warehouses and garages. It has a nationwide sales and construction network and extensive experience in collaboration with local governments and regional businesses.

Kakuichi works with local governments nationwide, valuing not just "proposing and finishing" but also thinking together and running together to solve regional challenges.

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

About Koshidaka Holdings Co., Ltd.

Koshidaka Holdings Co., Ltd. is an entertainment company that develops the karaoke business of "Karaoke Manekineko" with the vision of "Entertainment as Infrastructure." Through industry-first initiatives such as allowing food and drink brought from outside and making all rooms non-smoking, it has provided a place for "everyday entertainment" that anyone can easily enjoy. By continuously providing evolved and meaningful services and products to people worldwide, we aim to contribute to the realization of affluent leisure lifestyles and the construction of a peaceful world full of hope.

Official HP: https://www.koshidakaholdings.co.jp/ja/index.html

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

Representative: President Hiroshi Koshidaka

Tokyo Head Office: Dogenzaka-dori 10F, 2-25-12 Dogenzaka, Shibuya-ku, Tokyo 150-0043

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 fiscal year ending August 2025)

About UPDATER Inc.

Changed its name from Minna Denryoku Co., Ltd. on October 1, 2021. It provides services centered on traceability and transparency for corporations and individuals, and works to solve social issues. 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 through 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 for 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 companies in Japan), and B Corp certification as an energy provider.

UPDATER Inc. Company Profile

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

President: Eiji Oishi

Established: May 25, 2011

Capital: 100 million yen (Legal reserve 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/

Contract Scale Data

Target Demand Points (Karaoke Manekineko Stores)

Area

Prefecture

Number of Demand Points

(Based on Supply Point Identification Number)

Tohoku Area

Aomori, Miyagi, Fukushima, Niigata

12 locations

Hokuriku Area

Toyama, Ishikawa, Fukui

10 locations

Kansai Area

Osaka, Hyogo, Nara, Kyoto, Shiga

31 locations

Chugoku Area

Okayama

7 locations

Shikoku Area

Kagawa, Ehime, Tokushima, Kochi

24 locations

Total

84 Demand Points

Target Power Plants (Kakuichi Solar Power Plants)

Area

Prefecture

Number of Power Plants

Total AC Output (Approximate)

Tohoku Area

Niigata Prefecture (Niigata City, Seiro Town,

Tsubame City, Nagaoka City, Kashiwazaki City,

Sanjo City, Itoigawa City, Taitai City,

Murakami City)

13 locations

Scale equivalent to approx. 98 kW

Hokuriku Area

Toyama Prefecture, Ishikawa Prefecture (Noto City, etc.)

10 locations

Multiple configurations of approx. 90 kW class

Kansai Area

Kyoto Prefecture, Shiga Prefecture, Fukui Prefecture

20 locations

Multiple configurations of approx. 135 kW class

Chugoku Area

Shimane Prefecture, Hiroshima Prefecture, Okayama Prefecture

6 locations

Configuration of approx. 49 kW class

Shikoku Area

Tokushima Prefecture

12 locations

Configuration of approx. 60 kW class

Total

61 Power Plants

* Each power plant is a 4.95 kW or 9.90 kW low-voltage solar power system (assumed for container/garage rooftops).

* 61 power plants x average approx. 8 kW = Total installed capacity approx. 420 kW scale.

Inquiries regarding this matter

Kakuichi Co., Ltd.

Public Relations Representative: Nagasaki

E-mail: t.nagasaki@kaku-ichi.co.jp