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Energy audit on the building’s energy performance

  • Energy audit
  • Tertiary

CDG29

The client’s objectives and expectations

Provide a comprehensive view of the building’s energy performance and identify particularly energy-intensive areas and potential energy savings opportunities.

Our main tasks

  • Diagnosis of the building envelope,
  • Diagnosis of the site’s energy equipment,
  • Building heat loss assessment,
  • Energy consumption assessment (electricity, natural gas, water),
  • Comfort analysis,
  • Recommendations on the building and equipment (energy, environmental, financial, comfort gains, investment),
  • Renovation scenario meeting the Tertiary Decree (relative/absolute target).

Project characteristics

  • Tertiary building (offices/administration) with 4,000 m² of heated surface,
  • Heat pump (64 kW + 25 kW + 40 kW) and a 233 kW gas boiler,
  • Old and new buildings.

Résultats obtenus

  • Consumption before audit: 160 kWh PE/m².year.
  • Consumption after audit: 100 kWh PE/m².year, representing an energy saving of 38%.