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A self-sufficient and connected air damper to measure and regulate indoor air quality for commercial buildings & schools

August 2023
Gallery e.VAV 1
Gallery e.VAV 1


The e.VAV aims to provide a simple solution to control indoor air quality in tertiary buildings and schools. In addition to the controlled mechanical ventilation, the e.VAV is a self-sufficient and connected system that requires no extra wiring when installed in the building air ducts. It helps to keep the best indoor air quality to provide a healthy environment for the staff, the students, and the building itself. The operating principle is based on harvesting the mechanical energy directly from the ventilation in ducts. It induces the rotation of a turbine having a magnet on its axle. On the stator, a magneto-electric energy harvester converts the rotating magnetic field into electric charges stored in the product to power environmental sensors (temperature, HR, CO2), to counteract the environment (actuator + irises), and to communicate data onto the Cloud (LoRaWan protocol).

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Label Date August 4, 2023
From France
Maturity stage Small scale commercialization
Looking For Network, Visibility, Credibility, New clients, Partners

The environmental benefits

  • Adjusts ventilation systems to optimize them during all the building life cycle, reducing the energy consumption by 30% compared to a standard ventilation system with constant air volume dampers
  • By using an energy harvester, the replacement of 1 to 6 AA batteries per year of usage and per system can be avoided (one system per room)
  • The energy harvester avoids external power supply, so there is no 24/230V transformer and no cabling
  • Good indoor air quality results in healthy impact on the people reducing the Building Sick Syndrom by at least 15%, it also has an impact on the building health (less mold and humidity)
  • The energy harvester avoids heavy maintenance compared to a system with battery that would induce many travels from the maintenance team and unnecessary battery replacement

The Financial benefits

  • The eVAV solution embedding the energy harvesting system requires less labor costs for the installation compared to the mainstream solution
  • The energy harvester comprised in the system avoids preventive replacement of batteries, that would induce downtime of usage

Activity Region

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  • Headquarters
  • Activity

Company Profile

Enerbee Technology

Enerbee Technology, provider of self-sufficient energy solutions

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Enerbee Technology has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.