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Measuring Building Energy Use

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…

Equipment and Lighting Loads

Lighting, HVAC equipment, water heaters, and appliances all consume energy in the form of either electricity or fuel. All of these things are important to understand and optimize for high performance building design, and are important inputs for whole building energy analysis simulation. The equipment, lighting, and plug loads described…

Thermal Loads

Thermal loads are the amount of energy needed to be added or removed from a space by the HVAC system to keep occupants comfortable. Right-sizing the HVAC system the HVAC system requires understanding the heating and cooling loads within the space. High performance buildings seek to reduce these loads as…

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