Category: Economy
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OBJECTIVE 4.012 ~ Now Available in BETA
OpenBuilding OBJECTIVE: A Free Early-Stage Energy Modelling Tool That Actually Works Canada wastes $44.6 billion annually** on building energy inefficiency—more per capita than any country on Earth. Despite decades of voluntary standards, expensive certifications, and complex modelling software, the performance gap between modelled and actual building energy use can vary by an incredibly wide margin. …
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Domestic and Service Hot Water Use (DHW, SHW)
Summary of Canadian Domestic Water Heating Research (Using kWh) Based on the 2005 CBEEDAC report “Domestic Water Heating and Water Heater Energy Consumption in Canada” (Aguilar et al., 2005), alongside recent findings from Abdeen et al. (2020, 2021), we have reviewed our OBJECTIVE framework’s domestic hot water (DHW) energy consumption model (values expressed in litres…
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TEUI T.10 Thermal Energy Demand Intensity (TEDI)
Flashes of insight aren’t that common. And when they do occur it’s easy to miss them, dismissing our intuition over what may be well-maintained orthodoxies, even if incorrect. But we can’t doubt our hunches when they unrelentingly demand our sustained attention. Such was the case while poring over about 3,000 lines of javascript code in…
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TEUI D.1 Reporting Period and Service Life
If you’re not sure what TEUI3 is, Take me to the Index of Articles! TEUI3 provides a Drop-Down menu to select a year range from 2015 to 2041. The purpose of this is to establish in what year annual emissions are to be calculated for, and this can function for either the ‘Utility Bill‘ method…
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The Energy Model vs The Real World
After 2 years of living in our cold-climate Passive House, how is its real performance measuring up to the energy model used during the building’s design phase? An energy model is a digital replica of a building that simulates heat gains and losses based on the building’s characteristics and climate. It allows us to optimize…
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TEUI G.2 Solar Gains (and Defaults)
If you had a million years on this Earth, you might find time to read every possible research paper on energy modelling and come up with a pretty good understanding of window and door behaviour. But having spent nearly 30 years in this field, nothing has gotten any simpler. The closer you look, the more…