France

Saint-Dié Post Office

France – Saint-Dié Les Vosges

Temperate Renovated Building

Organisation : La Poste Immobilier

53.0 %
annual energy
savings achieved
Level : Master

Energy performance

53.0 %
Energy savings
60.2 kWh/m²/year
Absolute performance
12.3 kgCO₂/m²/year
Carbon intensity

Operation Context

  • History: 1990s concrete office building for La Poste Immobilier, lightly renovated in 1999 & 2003, later integrated into SOLOREM’s portfolio.
  • Occupancy: Single tenant, <200 users, continuous occupation; renovation aligned with lease renewal (since 2021) and carried out in occupied conditions.
  • Specificities: Pre-renovation: poor comfort, high energy use, complex HVAC
    Post-renovation: high-performance envelope, heat pump + heat recovery, improved comfort with lower energy demand, strong thermal inertia aiding passive cooling

Key measures implemented

The main actions implemented to reduce the energy consumption of this building.

Efficiency Investments

  • Radiators removed in low-need area

Technical Optimization

  • Setpoint at 17°C (achieves ~20°C indoor naturally)
  • IT rooms reduced from 26°C to 19°C


Use Sufficiency

Strong communication and awareness campaigns

Technical context

Floor area 1,828 m²
Number of floors 1
Activity type Logistics

Consumption data

Measurement periods

Reference period
Jan 2022 - Dec 2022
Monitoring period
Jan 2023 - Dec 2023

Annual Energy Impact