Energy Efficiency

Energy efficiency involves a set of strategies that can be used to reduce the consumption of energy—especially fossil-fuel energy—in buildings. These strategies include:

  • monitoring energy use

  • improving building commissioning

  • applying insights from building science

  • selecting innovative HVAC and building envelope technology

  • using natural ventilation and daylighting to provide low-cost alternatives to standard systems

Energy Efficiency

Deep Dives

Get up to speed on complex topics. You can also earn CEUs and download PDF Spotlight Reports.


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Quick Takes

Jump straight to the essentials with these short explanations of green building concepts.


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Product Guidance

Unbiased information from our product experts helps you separate green from greenwash.


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  • Climate Energy Brings Combined Heat and Power Home

    Product Review

    The idea of combining electricity generation with the production of useful heat-referred to as combined heat and power (CHP) or cogeneration-has long been attractive. Now, after many false starts, a viable residential-scale CHP system is about to enter the market.

  • Tinting on Demand with SageGlass

    Product Review

    Glazing from Sage Electrochromics, Inc., allows users to change its visible light and total solar transmittance properties with the push of a button.

  • New Delta Showerhead Advances State of the Art

    Product Review

    The Delta Faucet Company's newest showerhead delivers a satisfying shower using only 1.6 gallons of water per minute.

  • Mitsubishi Jet Towel Hand Dryer

    Product Review

    The Jet Towel uses high-velocity air to dry hands in five or six seconds. It also produces less noise and uses less energy than its competitors and captures water in a storage reservoir.

In The News

We break news down to the essentials and provide expert analysis.


Perspective

Thought-provoking opinions from the most trusted minds in sustainability.


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Learning Resources

Syllabus supplements and CEU content, with automatic reporting for AIA and GBCI.


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Just For Fun

Something weird happens every April at BuildingGreen...


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