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Knowing how to measure energy use in buildings will help you set better energy efficiency goals. Energy Use Intensity (EUI) normalizes energy use by floor area and is useful for targets and benchmarks. But, when it comes to environmental impacts, you need to look upstream at “source energy.” Also, when it comes to energy efficiency measures, you need to know what end-uses take the most energy.
Understanding heat transfer fundamentals and how they translate into energy flows in a building is critical when designing high performance buildings. Learn about the different forms of heat transfer, material properties like U-factor and R-value, heating and cooling loads, energy use intensity, and the difference between site and source energy.
Energy loads are how much energy your building needs. These demands can be provided by electricity, fuel, or by passive means. Thermal heating and cooling loads are also important concepts that drive how much energy the building’s HVAC system will use.