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:
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monitoring energy use
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improving building commissioning
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applying insights from building science
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selecting innovative HVAC and building envelope technology
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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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In The News
We break news down to the essentials and provide expert analysis.
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Air Conditioners Are Heating Up Our Cities
News Brief
Waste heat from air conditioners contributes to higher nighttime temperatures, in turn increasing cooling demands, according to a new study.
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$70 Million Fund Ready to Finance Building Energy Projects
News Brief
Capitalized with $70 million and a quick application process, Eutectics is ready to finance small solar and efficiency retrofits for commercial properties.
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New Energy Data Is Changing How We Judge Efficiency—And LEED
News Analysis
Seeking lessons from New York City benchmarking data, researchers question everything we thought we knew about energy metrics.
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County-Wide Energy Reporting Law Passed in Maryland
News Brief
In a first for the U.S., Montgomery County in Maryland has enacted a mandatory benchmarking law with third-party data verification
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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