Gallery Hydro-S3DP 1
Gallery Hydro-S3DP 1
August 2021
Headquarters 08193 Cerdanyola del Vallès, Barcelona, Spain

Hydro-S3DP - An energy efficient legionella and bacterial outbreak preventive systems for cooling tower.

Hydro-S3DP is an IoT solution that allows Legionella and bacterial prevention in real-time by combining high quality sensors which include two IP protected sensors, Big Data analysis through Machine Learning algorithms and biocide free water disinfection systems. It enables fast detection and allows automated treatment over Legionella contamination in cooling systems.

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Key features

  • Hydro-S3DP is an IoT automated Legionella prevention system enhanced by machine learning, replacing hazardous manual sampling.
  • Hydro-S3DP reduces biocide consumption up to 100% while increasing their life span from 5-8 to 25 years.
  • With the current number of registered legionella outbreaks, Hydro-S3DP is expect to prevent 1 outbreak for each 6, 49 and 75 installed units in hospitals, nursing homes and hotels respectively.
  • Reduce biocide consumption up to 100%.
  • Reduce energy consumption of cooling towers up to 88% in hard water condition.
  • Optimize cooling tower maintenance cost up to a 30%, while increasing their life span from 5-8 to 25 years.


  • Save from 63.5-118.5k€/year per cooling tower (maintenance, bacterial monitoring, closure of installation, potential litigation, etc..)
  • Less than 2 years payback time.
  • Favorises the use of more efficient cooling systems than air cooling by limiting bacterial treat.

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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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.