Energy modelling is a powerful design tool that predicts how a building is likely to perform before it is constructed. By modelling factors such as insulation, glazing, orientation, shading, ventilation and heating, it provides clear, measurable information to help guide better design decisions. I always tell my clients, if they want to make informed decisions around thermal performance, they first need to gather the information! That’s where energy modelling comes in.
Based in Wānaka, Performance Building Consultants provides building energy modelling services across Wānaka, Queenstown, the Southern Lakes, Otago and throughout New Zealand. I work with homeowners, architects, builders and developers to assess building performance and identify practical opportunities to improve it.
Design for better comfort and energy efficiency
Energy modelling allows different design options to be tested before construction, helping create homes that are warmer in winter, cooler in summer and more comfortable year-round. Rather than relying on assumptions or rules of thumb, the performance of different design strategies can be compared and refined using measurable results.
This includes assessing:
- Insulation levels and thermal performance
- Window size, orientation and glazing performance
- Solar gains and external shading, including shading from surrounding landscapes
- Building orientation and form
- Ventilation strategies
- Thermal comfort and overheating risk
- Annual heating and cooling energy demand
Make better decisions about where to invest
Improving building performance does not necessarily mean spending more on every aspect of construction. Energy modelling can help identify where additional investment will have the greatest impact, while highlighting areas where higher-cost solutions may provide little additional benefit.
By comparing different options during the design process, project teams can balance construction cost, energy efficiency, thermal comfort and long-term operating costs.
The result is a building that performs better in the real world — providing greater comfort, lower energy use and better long-term value, while giving the design team greater confidence in the decisions being made.
Energy modelling for your project
Whether you're designing a new home, developing a high-performance building or looking to understand the benefits of different building upgrades, energy modelling can provide the evidence needed to make informed decisions.