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.


  • Check if your spelling is correct, or try removing filters.
  • Remove quotes around phrases to match each word individually: "blue drop" will match less than blue drop.
  • You can require or exclude terms using + and -: big +blue drop will require a match on blue while big blue -drop will exclude results that contain drop.

Quick Takes

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


  • Check if your spelling is correct, or try removing filters.
  • Remove quotes around phrases to match each word individually: "blue drop" will match less than blue drop.
  • You can require or exclude terms using + and -: big +blue drop will require a match on blue while big blue -drop will exclude results that contain drop.

Product Guidance

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


  • Check if your spelling is correct, or try removing filters.
  • Remove quotes around phrases to match each word individually: "blue drop" will match less than blue drop.
  • You can require or exclude terms using + and -: big +blue drop will require a match on blue while big blue -drop will exclude results that contain drop.

Perspective

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


  • Check if your spelling is correct, or try removing filters.
  • Remove quotes around phrases to match each word individually: "blue drop" will match less than blue drop.
  • You can require or exclude terms using + and -: big +blue drop will require a match on blue while big blue -drop will exclude results that contain drop.

Learning Resources

A wide range of education options, with automatic reporting for AIA and GBCI.


  • Check if your spelling is correct, or try removing filters.
  • Remove quotes around phrases to match each word individually: "blue drop" will match less than blue drop.
  • You can require or exclude terms using + and -: big +blue drop will require a match on blue while big blue -drop will exclude results that contain drop.

Just For Fun

Something weird happens every April at BuildingGreen...


  • Check if your spelling is correct, or try removing filters.
  • Remove quotes around phrases to match each word individually: "blue drop" will match less than blue drop.
  • You can require or exclude terms using + and -: big +blue drop will require a match on blue while big blue -drop will exclude results that contain drop.