F
Service F
Building Energy Modelling

# Energy performance,
modelled hour by hour.

16

A calibrated energy model turns an argument about the façade into a number.

We build whole-building thermal models to evaluate and optimize energy performance, testing envelope, glazing, shading, HVAC strategy, lighting, controls and renewable generation against the local climate and the building's real operating profile.

The model serves several purposes at once: code and certification compliance, energy conservation measure evaluation, EUI targeting, and the energy demand that feeds the carbon inventory and the life cycle cost analysis.

Scope of service

- Whole-building energy simulation
- Baseline vs proposed comparison
- HVAC energy assessment
- Building envelope optimization
- Lighting energy assessment
- Renewable energy scenario analysis
- Energy conservation measure evaluation
- Energy code compliance
- Certification energy modelling
- Annual consumption & EUI analysis

Simulation tools
IES VE eQUEST ASHRAE 90.1 App. G Parametric analysis
Fig. 16.1 · Baseline versus proposed annual energy use by end use. Illustrative kWh/m²/yr.
Image · Simulation output
IES VE or eQUEST model view. 3D thermal model or results screen
What the model is used for
Compliance

Demonstrating the required improvement over an ASHRAE 90.1 Appendix G or local code baseline.

Certification

Producing the energy evidence behind LEED, Estidama, Mostadam and Al Sa'fat credits.

Design decisions

Ranking envelope, glazing, shading and plant options on measured energy and cost impact.

Downstream analysis

Supplying the energy demand used in the carbon inventory and the life cycle cost model.

Certify
Measure
Optimize
Decarbonize
F · Building Energy Modelling 16