energy modelling

We are building professionals who delight in the synergy of natural, low tech materials and high tech, science-based design and construction methods.

We have a combined experience of more than 35 years in the design, construction and environmental building sectors, more than 30 of those years in New Zealand.

The typical new home in New Zealand is not energy efficient or comfortable, and therefore cannot be resilient. But with a few simple principles and techniques based on traditional Kiwi building, we can build zero energy, or even zero carbon buildings.

Low energy buildings are comfortable buildings. They are high quality buildings. They are designed and built with care and skill. But in order to optimise low energy buildings we need to model them first, preferably as early on in the design process as possible.

Armed with this knowledge, we can perform a simple cost-benefit analysis based on the individual requirements of the client and their budget. Where is the money best spent?

Why would we not want to understand how a building will perform before we build it? Thermal modelling results in a better, more efficient end product.


Energy Demand

This is the amount of energy that the building is predicted to use; It is the energy you pay for. As well as providing results for the building as designed, we offer variants to the design which allow us to analyse the ‘biggest bank for buck’ and find the sweet spot between upfront investment and on-going running costs. We provide a comparison of the design to the same building ‘built to code’ to demonstrate the improvements possible by exceeding the building code.

Energy Load

This is the amount of power needed to heat and/or cool the building. This information is useful for specifying and sizing the HVAC systems in the building.

Cooling Demand/Overheating

The model can predict the frequency of overheating the occupants will experience. We also offer variants to the design (shading options, thermal mass, etc) that will reduce overheating and make the building more comfortable.

We also offer advice on aspects of low energy building such as air tightness and ventilation and quantify their effects on the performance of the building