Government Facility Retrofit – Energy
Comprehensive retrofit of a government facility under HQE standards with RTex compliance, combining external and internal insulation, high-performance glazing, advanced lighting controls, and modernized HVAC systems. The project integrated CO₂-controlled ventilation and robust energy & water monitoring to maintain performance post-commissioning.
Detailed Assessment
- HQE approach with RTex retrofitting compliance.
- External + internal insulation and double-glazed windows.
- LED lighting with dimming system for adaptive control.
- Airtightness objective: Q4 < 1.7 m³/m²·h.
Performance Evaluation
- Seasonal efficiency review of condensing boiler operation.
- Verification of CO₂-based fresh air intake modulation.
- Heat recovery efficiency >80% on dual-flow AHU.
Diagnostic Testing
- Balancing and control sequence testing of radiator circuits.
- Functional testing of lighting dimming control.
- Air tightness testing and verification of envelope integrity.
Maintenance Review
- Preventive maintenance plan for HVAC and lighting systems.
- Operator training for CO₂-control and system monitoring.
- Creation of an updated asset register with performance benchmarks.
System Optimization
- Refined control logic for radiator and AHU operation.
- Energy & water consumption tracking with automated reporting.
- Seasonal adjustment of system setpoints to minimize waste.
Efficiency Improvement
- LED dimming schedule optimization based on daylight availability.
- Improved fresh-air modulation to balance IAQ and energy use.
- Roadmap for ongoing incremental retrofit measures.
Result: modernized government facility with optimized heating, ventilation, and lighting systems, delivering improved comfort, reduced operational costs, and long-term energy efficiency.