30 Sep '15, 12pm

Building Science: The Department of Energy Chooses a Definition for Net Zero

Building Science: The Department of Energy Chooses a Definition for Net Zero

Sam Rashkin, the Chief Architect in the DOE's Building Technologies Office, has been presenting on clearing up our language in the energy efficiency community for the past couple of years. I just heard him again recently in Chicago, where he gave the closing keynote speech at the 10th annual North American Passive House A residential building construction standard requiring very low levels of air leakage, very high levels of insulation, and windows with a very low U-factor. Developed in the early 1990s by Bo Adamson and Wolfgang Feist, the standard is now promoted by the Passivhaus Institut in Darmstadt, Germany. To meet the standard, a home must have an infiltration rate no greater than 0.60 AC/H @ 50 pascals, a maximum annual heating energy use of 15 kWh per square meter (4,755 Btu per square foot), a maximum annual cooling energy use of 15 kWh per square meter (1.39 kWh...

Full article: http://www.greenbuildingadvisor.com/articles/dept/buildin...

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