Powerless Rainwater Purification System 'ecowin Water' Wins Excellence Award at the 24th Environmental & Facility Design Awards
Eco Factory Co., Ltd. announced that its 'ecowin Water' system has won the Excellence Award at the 24th Environmental & Facility Design Awards. The award recognizes the system's unique concept of using gravity for purification, eliminating the need for electricity, and its social value in disaster prevention and energy conservation. The system can be retrofitted to existing buildings and is praised for its ability to reduce cooling energy consumption and provide emergency water.
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- 📰 Published: May 23, 2026 at 01:17
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Eco Factory Co., Ltd. (Headquarters: Kumamoto City, Kumamoto Prefecture; President: Takayoshi Murakami) is pleased to announce that its power-free rainwater purification system, 'ecowin Water,' has received the 'Excellence Award' at the 24th Environmental & Facility Design Awards, hosted by the Association of Building Engineering and Equipment.
The Environmental & Facility Design Awards program comprehensively evaluates outstanding environmental and facility designs in the building sector based on four perspectives: 'Sensitivity,' 'Functionality,' 'Society,' and 'Economy.'
'ecowin Water' was awarded for its unique 'no-electricity' concept, its contribution to social infrastructure as a disaster-resilient and energy-saving solution, and its future potential as a self-sustaining system for disaster scenarios.
Award Details
- Award: Excellence Award
- Recipient: Eco Factory Co., Ltd.
- Project: ecowin Water, a power-free rainwater purification system.
- Concept: A green infrastructure for disaster prevention, energy saving, and circular society achieved with zero CO2 and zero electricity.
- Organizer: Association of Building Engineering and Equipment
- Ceremony Date: Friday, May 22, 2026
- Ceremony Venue: Kenchiku Kaikan Hall
About 'ecowin Water'
'ecowin Water' is a rainwater treatment system that purifies rainwater without power, enabling energy conservation, disaster prevention, and reduced environmental impact. It can be retrofitted to existing building drainage pipes and utilizes a unique structure combining centrifugal, gravity, and coagulation separation for high efficiency. Incorporating 0.5μm precision filtration, water quality tests have confirmed silica levels of less than 0.3mg/L, preventing scale buildup and allowing for diverse uses such as equipment operation and cleaning.
Used for mist cooling of air conditioning outdoor units, the system has demonstrated approximately 15% energy savings, helping to reduce summer cooling loads and peak demand.
Key Advantages
- Easy retrofitting to existing facilities, meeting high demand for energy conservation amid rising electricity costs and extreme heat.
- Contributes to environmental and sustainability goals for major corporations, supporting both carbon footprint reduction and business continuity planning (BCP).
- Operates during power outages or water supply disruptions, making it a valuable asset for disaster bases and BCP measures.
Anticipated Use Cases
- Evacuation shelters/gyms: HVAC energy efficiency, emergency water supply.
- Factories: Mist cooling, process cleaning water, BCP measures.
- Gas stations: Pure water for car washing, local disaster prevention.
- Commercial facilities: HVAC energy efficiency, BCP measures.
- Remote islands/mountainous areas: Securing water for daily life.
- Medical/welfare facilities and offices.
The Environmental & Facility Design Awards program comprehensively evaluates outstanding environmental and facility designs in the building sector based on four perspectives: 'Sensitivity,' 'Functionality,' 'Society,' and 'Economy.'
'ecowin Water' was awarded for its unique 'no-electricity' concept, its contribution to social infrastructure as a disaster-resilient and energy-saving solution, and its future potential as a self-sustaining system for disaster scenarios.
Award Details
- Award: Excellence Award
- Recipient: Eco Factory Co., Ltd.
- Project: ecowin Water, a power-free rainwater purification system.
- Concept: A green infrastructure for disaster prevention, energy saving, and circular society achieved with zero CO2 and zero electricity.
- Organizer: Association of Building Engineering and Equipment
- Ceremony Date: Friday, May 22, 2026
- Ceremony Venue: Kenchiku Kaikan Hall
About 'ecowin Water'
'ecowin Water' is a rainwater treatment system that purifies rainwater without power, enabling energy conservation, disaster prevention, and reduced environmental impact. It can be retrofitted to existing building drainage pipes and utilizes a unique structure combining centrifugal, gravity, and coagulation separation for high efficiency. Incorporating 0.5μm precision filtration, water quality tests have confirmed silica levels of less than 0.3mg/L, preventing scale buildup and allowing for diverse uses such as equipment operation and cleaning.
Used for mist cooling of air conditioning outdoor units, the system has demonstrated approximately 15% energy savings, helping to reduce summer cooling loads and peak demand.
Key Advantages
- Easy retrofitting to existing facilities, meeting high demand for energy conservation amid rising electricity costs and extreme heat.
- Contributes to environmental and sustainability goals for major corporations, supporting both carbon footprint reduction and business continuity planning (BCP).
- Operates during power outages or water supply disruptions, making it a valuable asset for disaster bases and BCP measures.
Anticipated Use Cases
- Evacuation shelters/gyms: HVAC energy efficiency, emergency water supply.
- Factories: Mist cooling, process cleaning water, BCP measures.
- Gas stations: Pure water for car washing, local disaster prevention.
- Commercial facilities: HVAC energy efficiency, BCP measures.
- Remote islands/mountainous areas: Securing water for daily life.
- Medical/welfare facilities and offices.
FAQ
ecowin ウォーターとはどのような製品ですか？
雨水を無動力で純水化し、省エネ・防災・環境負荷低減に活用できる雨水処理システムです。既存建物の竪樋へ後付け設置が可能で、空調室外機の噴霧冷却などで活用されます。
ecowin ウォーターが第24回 環境・設備デザイン賞で評価された点は何ですか？
“電力に頼らない”という独自コンセプトに加え、防災・省エネ・循環型インフラとしての社会性や、災害時にも活用可能な自立型設備としての将来性が高く評価されました。
ecowin ウォーターはどのような場所で導入可能ですか？
避難所体育館、工場、ガソリンスタンド、商業施設、離島・山間部施設、医療・福祉施設、オフィスなど幅広い施設での導入が想定されています。
空調室外機への噴霧利用による省エネ効果はどの程度ですか？
空調室外機への噴霧利用では、約15％の省エネ効果が確認されています。
災害時の活用においてどのようなメリットがありますか？
停電・断水時でも利用可能な無動力システムであるため、BCP対策設備や防災拠点での生活用水確保として活用が期待されています。