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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Polyiso Manufacturers Turn Blind Eye to Problems at Cold Temperatures
News Analysis
R-values that fluctuate with temperature can be a serious problem with polyiso in some climates. New design guidance could help.
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First Existing Multifamily Buildings Earn Energy Star Certification
News Analysis
Tenants are saving more than $500 a year in one of the first existing apartment buildings to be certified.
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A New, Cost-Effective Take on Vacuum Insulation
News Brief
“Modified atmosphere insulation” technology may be able to rival the performance of vacuum insulation panels at a more affordable price.
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EBies for 2014 Shine (Efficient) Spotlight on Existing Buildings
News Analysis
Urban Green Council rolls out the green carpet and rewards exceptional achievements in energy, water, lighting, and more.
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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