LEED GA: Energy and Atmosphere

What does ODP stand for?

Ozone Depletion Potential

What variables are used in determining FTE calculations?

The type of building occupant (full-time, part-time, transient) and the hours worked per week

What is natural ventilation?

This uses the natural forces of wind and buoyancy to deliver fresh air into buildings

What is daylighting?

The practice of placing windows, or other transparent media, and reflective surfaces so that, during the day, natural light provides effective internal illumination.

What are CFCs?

Chlorofluorocarbon. This is a type of hydrocarbon that is used in most types of refrigerants for building applications such as centrifugal chillers, refrigerators, and humidifiers. Most applications were installed prior to ozone concerns.

What standard defines green power?

Green-e

What does GWP stand for?

Global Warming Potential

What LEED category would SMACNA standards be used for?

Indoor Environmental Quality (IEQ)

What is a Full-Time Equivalent (FTE)?

It’s a regular building occupant who spends 40 hours per week in the project building.

What is ASHRAE 90.1 related to?

This is related to HVAC systems.

What does ASHRAE stand for?

American Society of Heating, Refrigerating, and Air-Conditioning Engineers

What is lighting power density?

Installed lighting power per unit area

What does an ENERGY STAR rating refer to?

This measures a building’s energy performance compared with that of a similar buildings, as determined by a representative of the rating agency.

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50 represents an average building performance.

What are some of the benefits of Vegetated Roofs?

They reduce heat island effect, retain runoff, insulating benefits, aesthetically pleasing, have longer life, and less maintenance than conventional roofs.

What does a Vegetated roof consist of?

Vegetation, growing medium, filter fabric, drainage, and a waterproof membrane.

What are transient occupants?

Building visitors and other part-time or occasional occupants, such as students, volunteers, and visitors.

What standard applies to natural ventilation?

ASHRAE 62

What is a Baseline Building Performance?

ASHRAE 90.1 defines minimum standards of design. Which considers the annual energy cost for a building designed to those minimum standards.

What are alternatives to using refrigeration with CFCs?

1. Natural Ventilation
2. Refrigerants with lower ODP and GWP


1. Natural Refrigerants

What ASHRAE standards would be used for the Energy and Atmosphere category?

ASHRAE 90.1

What is Green-e?

This is a program established to promote green electricity products and provide consumers with a nationally recognized method to identify those products.

What LEED category would the Green-e standard be used for?

Energy and Atmosphere

What types of systems use CFCs?

1. Centrifugal Chillers
2. Refrigerators


1. Humidifiers

What category does lighting power density have the greatest impact on?

Energy and Atmosphere. Reducing lighting power density reduces energy use.