Cost Modelling for Energy Efficient Window Replacements

Research output: NRELTechnical Report


This paper detailed data collection and cost-modeling efforts to understand the hardware and non-hardware (soft) cost of residential, energy efficient window replacements. NREL created a bottom-up cost model that details costs associated with window materials, installation labor, company overhead, and administrative costs. NREL did not find a single cost area for improvement but observed several non-cost barriers to increased window replacements. The non-cost barriers associated with window replacements are consumer education, lack of communication of the value of window replacement to consumers, and difficulty for consumers to identify quality products and installation.
Original languageAmerican English
Number of pages36
StatePublished - 2019

NREL Publication Number

  • NREL/TP-6A50-70967


  • cost modeling
  • energy efficiency
  • windows


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