Integrated and Optimized Energy-Efficient Construction Package for a Community of Production Homes in the Mixed-Humid Climate

Stacey Rothgeb, D. Mallay, J. Wiehagen, M. Bianco, Stacey Rothgeb (NREL Technical Monitor)

Research output: NRELSubcontract Report


Selection and integration of high performance home features are two sides of the same coin in energy efficient sustainable construction. Many advanced technologies are available for selection, but it is in the integration of these technologies into an affordable set of features that can be used on a production basis by builders, that ensures whole-house performance meets expectations. Thisresearch high performance home analyzes how a set of advanced technologies can be integrated into a durable and energy efficient house in the mixed-humid climate while remaining affordable to homeowners. The technical solutions documented in this report are the cornerstone of the builder's entire business model based on delivering high-performance homes on a production basis as a standardproduct offering to all price segments of the residential market. Home Innovation Research Labs partnered with production builder Nexus EnergyHomes (CZ 4). The builder plans to adopt the successful components of the energy solution package for all 55 homes in the community. The research objective was to optimize the builder's energy solution package based on energy performance and constructioncosts. All of the major construction features, including envelope upgrades, space conditioning system, hot water system, and solar electric system were analyzed. The information in this report can be used by builders and designers to evaluate options, and the integration of options, for increasing the efficiency of home designs in climate zone 4. The data also provide a point of reference forevaluating estimates of energy savings and costs for specific features.
Original languageAmerican English
Number of pages42
StatePublished - 2014

Bibliographical note

Work performed by Partnership for Home Innovation (PHI), Upper Marlboro, Maryland

NREL Publication Number

  • NREL/SR-5500-62325

Other Report Number

  • DOE/GO-102014-4454


  • air tightness
  • Building America
  • challenge home
  • climate zone 4
  • community
  • EE
  • EE
  • energy efficiency
  • green
  • GSHP
  • indoor airplus
  • NGBS
  • packages
  • Partnership for Home Innovation (PHI)
  • production builders
  • PV
  • residential
  • residential buildings
  • SIP
  • solutions


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