We’ve counted the energy used to heat the building, heat our water, brew our coffee as well as other household appliance uses. What’s left? There is still a collection of other electrical bits and pieces, odds-n-ends, a patchwork of power potentials if you will that must be counted.
The Auxiliary Electrical worksheet will look at the energy uses that you might never consider in your building. Does your subsoil heat exchanger have a defrosting function? Do you use mechanical ventilation when it is not the heating season? Do you have a circulation pump on your hot water system or hydronic heating system? What about for the boiler?
The PHPP gets into this level of detail. That is what makes it such a great tool for modeling how a building is expected to perform before it is built. It is however, only as good as the quality of the information it receives so worksheets like this exist to make sure even the smallest detail is not overlooked when calculating the expected energy use of a building.
Next up – Internal Heat Gains