Energy audit of the Châteaugiron nursing home (EHPAD)

  • Energy audit
  • Tertiary
  • Health

Nursing home Les Jardins du Castel

The client’s objectives and expectations

Identify comfort issues, particularly energy-intensive areas, and potential energy savings opportunities.

Our main tasks

  • Diagnosis of the building envelope,
  • Diagnostic des équipements énergétiques du site,
  • Building heat loss assessment,
  • Energy consumption assessment (electricity, natural gas, water),
  • Dynamic thermal modeling (DTM),
  • 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

  • Nursing home (EHPAD) with 9,995 m² of heated surface (123 rooms),
  • 2 boiler rooms with 2×150 kW gas and 2×575 kW gas,
  • Old and new buildings.

Résultats obtenus

  • Consumption before audit: 244 kWh PE/m².year,
  • Consumption after audit: 209 kWh PE/m².year, representing an energy saving of 14%.

Conducting a dynamic thermal simulation, although substantial, is relevant to highlight discomfort in certain rooms of the building.

Clément, Project Engineer at Exoceth