Power Bank System

What Power Bank System does

Power Bank System Co., Ltd. (株式会社パワーバンクシステム) is a privately held Japanese micro-manufacturer founded in April 2003 in Kumamoto City and relocated to Yatsushiro, Kumamoto Prefecture in 2009. The company develops, manufactures, and sells niche hardware across four product lines: solar battery products (salt-damage-resistant panels and the portable Fuji Power Rescue system), Fiber Reinforced Plastic (FRP) products (high-insulation boards and boxes for telecommunications and industrial applications), low-temperature cold chain preservation boxes, and PV electrical anti-corrosion systems. Underlying technology rests on proprietary FRP composite processing (with a pending patent and validation by Kumamoto University and Ishihara Research Institute showing 25% better insulation than steel and 13-15% better than standard FRP), flexible thin-film solar cells with complete waterproofing, and a power factor correction system that adjusts power factor to 100% in high-voltage installations.

The company generates revenue through one-time hardware sales and a small professional services line (electrical safety inspections, energy conservation surveys, design and construction), with custom quotations based on specifications and volume and no publicly disclosed pricing. Go-to-market is direct enterprise field sales supplemented by trade show participation (Tokyo Big Sight, Marine Messe Fukuoka, ENEX, Eco Techno), targeting telecommunications operators (NTT, NTT Docomo), government institutions (Kumamoto Prefecture), research bodies (Kinki University Marine Research Institute, Japanese Antarctic Research Expedition), and international demonstration programs (JICA Philippines ODA, Mitsui Sumitomo Marine & Fire Insurance Vietnam cold chain). With only 5 employees, 87 million yen of registered capital funded entirely through internal capital increases, and no external investors, Power Bank System operates as a founder-managed specialty manufacturer dependent on a narrow base of enterprise and government anchor customers.

Name

Power Bank System

Legal name

株式会社パワーバンクシステム

Website

https://powerbs.co.jp

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

1–10 employees

Short description

Power Bank System is a Japanese micro-manufacturer of niche hardware — salt-damage-resistant solar panels, proprietary high-insulation FRP boards, cold chain boxes, and PV anti-corrosion systems — sold direct to enterprise, government, and research customers including NTT and the Japanese Antarctic Research Expedition.

Ownership category

akta.pro rank

Product category

Solar Energy and FRP Manufacturing

NAICS

Solar Electric Power Generation (221114), Electrical Equipment Manufacturing (3353)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Solar PV Module Manufacturing (Cells, Modules, Thin-Film) (EUAMABAD)

akta.pro secondary industry

Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG)

Keywords

• Solar panel manufacturing
• FRP composite products
• Cold chain logistics boxes
• PV electrical anti-corrosion
• Energy management systems

Headquarters

HQ city

Yatsushiro

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Solar Battery Products: Development, manufacturing, and sales of solar battery panels including specialized coastal/maritime applications and portable power rescue systems. One-time product sales model.
2. FRP Products: Development, manufacturing, and sales of high-insulation FRP boards and boxes for telecommunications, industrial, and agricultural applications. One-time product sales model.
3. Cold Chain Products: Low-temperature cold boxes for food export and logistics applications. Product sales model.
4. Energy Conservation Services: Electrical equipment safety inspections, energy conservation surveys, proposals, design, construction, and equipment development/sales for power systems.
5. PV Electrical Anti-corrosion: PV electrical anti-corrosion systems for infrastructure protection.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels1 record

Core offering

Power Bank System Co., Ltd. manufactures and wholesales solar panels and highly heat-insulating FRP (Fiber Reinforced Plastic) boxes. The company develops, manufactures, and sells solar battery products (including salt-damage-resistant panels and the portable Fuji Power Rescue system), FRP insulation boards and boxes, low-temperature cold chain preservation boxes, and PV electrical anti-corrosion systems for infrastructure protection.

Product overview

Power Bank System (株式会社パワーバンクシステム) is a Japanese hardware manufacturing company specializing in solar energy, FRP (Fiber Reinforced Plastic) products, and cold chain logistics solutions. The company operates four core business segments: Solar Cell Products (太陽電池事業) covering photovoltaic panels and portable solar power systems; FRP Products (FRP事業) including high thermal insulation boards and boxes; Cold Chain (コールドチェーン事業) for low-temperature preservation; and PV Electrical Anti-Corrosion (PV電気防食事業). Primary products include the Fuji Power Rescue portable solar system (adopted by Japanese Antarctic expeditions), salt-damage-resistant solar panels, patent-pending thermal insulation FRP boards, and low-temperature preservation boxes. The company also offers power factor adjustment systems and precision power meters for industrial energy management.

Differentiator

Problem solved

Functional benefit

Brands

• フジパワーレスキュー (Fuji Power Rescue): Portable and marine solar power rescue devices adopted by the Japanese Antarctic Research Expedition. Designed for disaster relief and leisure activities, providing backup power for PCs and mobile phones.

Products and services

• Solar Battery Panel (太陽電池パネル) Rust-proof, lightweight, salt-damage-resistant solar panel. First domestic Japanese product to guarantee 10-year power output in salt damage areas. Features complete waterproof construction with special sheet for surface cleaning. Used for coastal, maritime, and island installations.
• Fuji Power Rescue (フジパワーレスキュー)

Quantifiable outcome

• Solar panels provide 10-year output guarantee even in salt damage coastal areas - first such product in Japan
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Sumitomo Sumitomo Marine & Fire Insurance (Mitsui Sumitomo Insurance)minorStrategic or Co-development Partner · 1 January 2020Power Bank System's low-temperature cold boxes were adopted for a Vietnam demonstration experiment on food export and cold chain logistics conducted by Sumitomo Sumitomo Marine & Fire Insurance's Marine Damage Division.
• Kumamoto University (熊本大学工学部)coreStrategic or Co-development PartnerCollaborative research with Kumamoto University Faculty of Engineering for verification experiments on proprietary high-insulation FRP board technology.石原研究所 (Ishihara Research Institute) also involved in validation testing.
• Kyushu University (九州大学工学部)coreStrategic or Co-development PartnerCollaborative offshore power generation experiment using FRP panels and mounting systems at Hakata Bay, Fukuoka City, as part of 2011 Ministry of Economy, Trade and Industry next-generation energy demonstration project.
• Kinki University Marine Research Institute (近畿大学水产研究所)coreStrategic or Co-development PartnerSolar power generation boxes adopted for tuna aquaculture operations at Kinki University's marine research facility.
• JICA (国際協力機構)coreStrategic or Co-development PartnerMultiple collaborations including: 2015 training program for African government officials on entrepreneur development and SME activation; 2012 government development aid for overseas economic cooperation project for Philippines (ODA); 2013 private-sector proposal-type demonstration project in Philippines.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Power Bank System