The Impact of Window Energy Efficiency: Part 2

As of 2010, 41% percent of U.S. primary energy was consumed by buildings, according to the DOE’s Buildings Energy Data Book. However, the impacts of window efficiency on cost and energy savings in Minnesota buildings is unknown. The Center for Energy and Environment, along with the Center for Sustainable Building Research, recently completed research looking at the potential applications for window films and interior panels to increase building energy efficiency in Minnesota climates. 

The findings of this research highlight how the seemingly subtle differences in climate between northern and southern Minnesota are noticeable when it comes to window efficiency and the pay back that such investment would achieve. The research and modeling analysis studies different window retrofit technologies and their applicability in Minnesota, as a way for building owners to save money, and utilities to save energy.

Target Audience

  • Building managers and facility professionals
  • Utility commercial and residential program managers
  • Commercial and residential building envelope contractors
  • Homeowners (DIYers)
  • Window and window film manufacturers/installers
  • Building scientists and design professionals 

Webinar Outline

  • Analysis assumptions and findings
  • Implications for buildings in different parts of Minnesota
  • Summary of payback analysis
  • Opportunities for building professionals in the field and DIY-ers
  • Other reasons for window film and panel installation

If you missed the live webinar, you can click through the slides and download a recording below:


Presenter Bio

Gustav Brändström has been working at CEE since 2007. He has 10 years of Existing Building Commissioning experience, working in schools, office buildings, and industrial facilities in Minnesota. Prior to his time at CEE, Gustav worked on industrial energy efficiency at the Industrial Assessment Center at Iowa State University, where he conducted energy audits and built a focus around lighting, productivity enhancements, and compressed air analysis. 

Recently, Gustav was one of the project engineers at CEE on the Public Buildings Enhanced Energy Efficiency Program, a State run program administered by CEE, where he provided quality assurance to ensure accurate cost and energy savings. Mr. Brändström holds a B.S. in Mechanical Engineering from Iowa State University and is a Certified Professional Engineer in the State of Minnesota.

Continuing Education Credits

This webinar meets the GBCI requirements for self-reporting continuing education credit. Save an image of this registration page for your own personal records and look for GBCI pre-approved continuing ed credits from Center for Energy and Environment in the future.

GBCI Learning Objectives

  • The applicability of 'window retrofit technologies' (WRTs) to various building types with different energy usage.
  • The applicability of WRTs across Minnesota's two ASHRAE/building code climate zones (6A and 7)
  • The benefits of using energy modeling tools instead of field data to understand energy savings
  • The building and WRT scenarios that provide the greatest payback and customer benefit