The U.S. Department of Energy (DOE) recently released preliminary findings from a peer-reviewed study about the efficacy of DOE’s Weatherization Assistance Program (WAP). This multi-year study has long been in the works, but the initial release is in response to a June 2015 working paper from academics with the E2e Project, which erroneously posited that the federal WAP and other energy efficiency programs are not good investments.
Home Energy Professional programs 
Yes, Virginia, Weatherization DOES Work!
The National Sustainable Structures Center: Strengthening a Skilled Credentialed Workforce
The National Sustainable Structures Center (NSSC) at Pennsylvania College of Technology (PCT), one of the top building science training centers in the U.S., is the first in the Commonwwealth to offer IREC-accredited training in all four of the Home Energy Professional programs.
Tagged with: building sciences, credentialing, Crew Leader, Energy Auditor, Home Energy Professional programs, National Sustainable Structures Center, Pennsylvania College of Technology, Quality Control Inspector, Retrofit Installer Technician, Weatherization Assistance Program, Weatherization Training Center