France

Ernest-Wallon Stadium

France – Toulouse

Temperate Existing Building

Organisation : Stade Toulousain

22.8 %
annual energy
savings achieved
Level : Gold

Energy performance

22.8 %
Energy savings
87.4 kWh/m²/year
Absolute performance
6.7 kgCO₂/m²/year
Carbon intensity

Operation Context

Site: Toulouse (31200)
Size: 25,000 m²

Energy savings: 647,513 kWh (–19.6%)
Emissions reduction: 143,860 kg CO₂e (–30.1%)

The site achieved substantial efficiency gains, cutting nearly one-fifth of total energy use, which likely reflects effective optimization (e.g., HVAC, lighting, or scheduling improvements).
The emissions reduction (30.1%) outpaces energy savings (19.6%), suggesting a cleaner energy mix or targeted reductions in high-emission activities.
At this scale (25,000 m²), the savings indicate high-impact interventions, likely replicable across similar sites.
The absolute savings (≈647 MWh) represent significant cost reduction potential, depending on energy pricing.

Key measures implemented

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

Efficiency Investments

  • Replacement of a 1982 boiler with a 400 kW condensing boiler (manufactured in France)
  • Replacement of air handling units (AHUs) with energy recovery systems
  • Installation of LED lighting in offices
  • Replacement of pool pumps and filtration systems (3 pumps in operation) with scheduled programming
  • LED relamping

Technical Optimization

  • Installation of a thermal diverter in a large-capacity tank to supply domestic hot water (DHW) and shut down the gas boiler
  • Installation of a control system to optimize equipment operating hours outside occupancy periods
  • Implementation of an initial metering plan

Use Sufficiency

  • Creation of a “green team” involving staff and service providers (facility manager, security and cleaning teams, etc.)
  • Internal “best eco-action” competition to reward the most impactful eco-friendly initiatives
  • Guide on eco-friendly practices and employee awareness campaigns, including a monthly newsletter

Technical context

Floor area 25,000 m²
Activity type Culture, Sports & Leisure
Year built 1978-1982

Consumption data

Measurement periods

Reference period
Jan 2022 - Feb 2023
Monitoring period
Mar 2023 - Feb 2024

Annual Energy Impact