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%.