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.
-
Is Using Smart Glass Smart?
Feature
Electrochromic glazing holds the promise of less glare and better energy efficiency with fewer attachments. The reality is much more complicated.
-
We Must Decarbonize Existing Buildings by 2050—but How?
Feature
Curbing carbon emissions requires that we address our vast stock of existing buildings. Here’s how to make the case and get it done.
-
How IRA Can Take Ground-Source Heat Pumps Mainstream
Feature
Incentives in the Inflation Reduction Act help GSHPs pay for themselves faster than conventional HVAC systems—with far better performance.
-
In the Pipeline: District Energy and Green Building
Feature
Very common in northern Europe, district energy systems use a network of buried, insulated pipes to distribute centrally produced steam, hot water, or chilled water to heat or cool multiple buildings. These systems can make use of waste heat from power generation (combined heat and power) or renewable fuel sources to help reduce the environmental impacts of buildings and communities.
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.
-
The Best Indoor LED Luminaires of 2016
Product Review
Winners of an annual DOE competition represent some of the best LED lighting for decorative pendants, downlights, and healthcare.
-
DC Power Supply Integrates AC and Renewables
Product Review
Nextek PhD provides AC-to-DC power at the building scale, integrates renewable energy, and can even save on first costs.
-
BuildingGreen Announces Top 10 Products for 2017
Product Review
Our innovative Top 10 product selections reduce stormwater and wastewater, improve efficiency and IAQ, and contain fewer hazardous materials.
-
Top-Efficiency Washers and Dryers Come in from Turkey
Product Review
Blomberg and Beko ventless heat-pump dryers lead the pack in energy performance and also may cause less wear-and-tear on clothing.
In The News
We break news down to the essentials and provide expert analysis.
-
NBI Stretches Code to Save 20% More Energy
News Analysis
The goal is to move energy codes forward more rapidly.
-
Thoughts on the Future of the Zero Energy Market
News Analysis
A Q&A with Brad Liljequist, director of the Zero Energy Program at ILFI.
-
The Combined Effectiveness of Prefab, Wood, and Passive House
News Analysis
Recent projects have combined modular prefabrication, wood construction, and Passive House design to address sustainability goals.
-
Another Corona Side Effect: Reduced Peak Electricity Demand
News Analysis
Flattening the COVID curve is also flattening electricity load curves, which may be a lesson for the building industry.
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
Syllabus supplements and CEU content, 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.