Evaluation of Savings in Energy-Efficient Public Housing in the Pacific Northwest

Stacey Rothgeb, Stacey Rothgeb (NREL Technical Monitor)

Research output: NRELSubcontract Report


This report presents the results of an energy performance and cost-effectiveness analysis. The Salishan phase 7 and demonstration homes were compared to Salishan phase 6 homes built to 2006 Washington State Energy Code specifications 2. Predicted annual energy savings (over Salishan phase 6) was 19% for Salishan phase 7, and between 19-24% for the demonstration homes (depending on ventilationstrategy). Approximately two-thirds of the savings are attributable to the DHP. Working with the electric utility provider, Tacoma Public Utilities, researchers conducted a billing analysis for Salishan phase 7. Median energy use for the development is 11,000 kWh; annual energy costs are $780, with a fair amount of variation dependent on size of home. Preliminary analysis of savings betweenSalishan 7 and previous phases (4 through 6) suggest savings of between 20 and 30 percent. A more comprehensive comparison between Salishan 7 and previous phases will take place in year two of this project.
Original languageAmerican English
Number of pages49
StatePublished - 2013

Bibliographical note

Work performed by BA-PIRC (FSEFC), Cocoa, Florida

NREL Publication Number

  • NREL/SR-5500-57828

Other Report Number

  • DOE/GO-102013-3897


  • affordable housing
  • Building America
  • Building America Partnership for improved residential construction (ba-pirc)
  • energy analysis
  • energy audits
  • modeled energy use
  • Pacific Northwest
  • public housing
  • residential
  • residential buildings
  • ventilation strategies


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