Service F · continued

Optimizing building performance

17
Building performance model
Inputs
Architecture
Envelope
HVAC
Lighting
Daylight
Renewables
Occupancy
Climate data
→
Energy
simulation
Outputs
Optimized building performance

Annual energy consumption · Energy Use Intensity · peak demand · end-use breakdown · compliance margin · certification points · carbon and cost inputs.

Fig. 17.1 · Modelled end-use split
Energy conservation measures we evaluate
EnvelopeInsulation levels, thermal bridging, air-tightness, glazing specification, window-to-wall ratio, external shading and orientation response.
HVACSystem selection, plant efficiency, part-load behaviour, heat recovery, demand-controlled ventilation, chilled water and district cooling interface.
LightingInstalled power density, daylight-linked dimming, occupancy control and zoning strategy.
ControlsSetpoints, schedules, optimum start, night purge, and the gap between designed and operated behaviour.
RenewablesPhotovoltaic array sizing, self-consumption, solar thermal and on-site generation scenarios.
Deliverables
  • Energy model & report
  • Baseline / proposed comparison
  • ECM evaluation matrix
  • Code compliance documentation
  • Certification energy submission
  • EUI and consumption forecast
−32%
Indicative energy reduction, optimized case
118
kWh/m²/yr modelled EUI
8760
Hours simulated per annual run
F · Building Energy Modelling 17