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Building Energy Loads

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Building Energy Loads

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.

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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 much as possible, and meet these loads as efficiently as possible.

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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 it comes to energy efficiency measures, you need to know what end-uses take the most energy.

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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.

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Building Science Fundamentals

High-performance buildings use far less energy, water, and money to run them. Building science is fundamental to high performance building design. Learn building energy fundamentals and how to apply strategies like passive heating and cooling to your projects. This will provide a strong foundation for getting the most out of building performance analysis software.

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Course

Whole Building Energy Analysis with Revit Course

This Whole Building Energy Analysis with Revit course will teach you how to use Revit to conduct whole building energy analysis through the use of building elements and thermal properties. Starting with some basic energy simulations, then building on complexity, to show you how detailed you can make your model.

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Course

Energy Literacy & Building Loads Course

In this course, you will learn about how energy flows through buildings, what factors contribute to building loads, and how all these factors contribute to a building’s energy use. You will also learn how to produce heating and cooling load charts and conduct a conceptual energy analysis using Autodesk Revit.

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Project Gallery Item

Saving the Black Gold (Saudi Arabia)

The analysis conducted on a typical existing residential apartment building in Jeddah, Saudi Arabia is a good example of using a wide variety of analyses to inform which energy conservation measures will have the most impact.

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Ecotect: Heat Gains/Losses

With Ecotect, you can get a more detailed understanding of energy loads, heat gains, and heat losses. You can analyze the building’s performance without any active systems, so is a good tool for passive design strategies.

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Vasari/Revit: Heating and Cooling Loads

When you run conceptual energy analysis using Autodesk Revit and Project Vasari, some of the most useful results graphs are the heating and cooling loads breakdowns. These results are based on the back-end DOE-2 whole building energy simulations run by Autodesk Green Building Studio.

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