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A SaaS for assessing, optimizing, renovating, and monitoring HVAC installations

February 2024
Gallery WaltApp 1
Gallery WaltApp 1


WaltApp® is a digital expertise and energy optimization platform for HVAC installations made available for all players in the building industry, namely heating engineers, engineering offices, and project owners. Our software consists of an on-field application and a back-office platform. The application is used to accurately and succinctly collect the technical data needed to assess systems. The administrative platform is used to organize on-site interventions, to synthesize the data and display the key indicators for decision-making. Our in-house developed algorithms enable the user to quickly identify levers for optimization and generate semi-automated audit reports for its client. The final aim of our solution is to improve the efficiency of existing systems and accelerate energy renovation, with the objective of achieving energy savings of at least 20% and thus reducing CO2 emissions of the installations concerned.

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Label Date February 20, 2024
From France
Maturity stage Initial market commercialization
Looking For Réseau, Nouveaux clients, Visibilité, Financement, Partenaires, Crédibilité

The environmental benefits

  • Average energy savings of 20% for HVAC systems
  • Average lifetime of systems increased by 15%
  • Up to 35% reduction in greenhouse gas emissions by acting solely on systems and introducing renewable energies
  • An average reduction in pollutant emissions of 20%

The Financial benefits

  • Proposed renovation plans with an average payback period of 5 to 10 years
  • 30% increase in field and administrative productivity
  • 80% time saving in calculating renovation plans OPEX and CAPEX project owners

Activity Region

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  • Headquarters
  • Activity

Company Profile


Walterre specializes in the expertise and optimization of building HVAC systems.

View company profile Solution website
Headquarters 69002 Lyon, France
Contact the Solution Provider Add to Favorites

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 Walterre 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.