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Passive House Details introduces the concepts, principles, and design processes of building ultralow-energy buildings. The objective of this book is to provide design goals, research, analysis, systems, details, and inspiring images of some of the most energy-efficient, carbon-neutral, healthy, and satisfying buildings currently built in the region. Other topics included: heat transfer, moisture management, performance targets, and climatic zones. Illustrated with more than 375 color images, the book is a visual catalog of construction details, materials, and systems drawn from projects contributed from forty firms. Fourteen in-depth case studies demonstrate the most energy-efficient systems for foundations, walls, floors, roofs, windows, doors, and more.
The Hood River Passive Project was developed by Root Design Build of Hood River Oregon using the Passive House Planning Package (PHPP) to meet all of the requirements for certification under the European Passive House standards. The Passive House design approach has been gaining momentum among residential designers for custom homes and BEopt modeling indicates that these designs may actually exceed the goal of the U.S. Department of Energy's (DOE) Building America program to 'reduce home energy use by 30%-50%' (compared to 2009 energy codes for new homes). This report documents the short term test results of the Shift House and compares the results of PHPP and BEopt modeling of the project. The design includes high R-Value assemblies, extremely tight construction, high performance doors and windows, solar thermal DHW, heat recovery ventilation, moveable external shutters and a high performance ductless mini-split heat pump. Cost analysis indicates that many of the measures implemented in this project did not meet the BA standard for cost neutrality. The ductless mini-split heat pump, lighting and advanced air leakage control were the most cost effective measures. The future challenge will be to value engineer the performance levels indicated here in modeling using production based practices at a significantly lower cost.
The purpose of the study was to address the three limitations of previous research as identified by the Western Region W-139 Technical Committee (1980). First, specific hypotheses were tested. Second, through hypotheses testing, understanding was gained of energy conservation behavior and energy problem perceptions. Third, the sample size was large enough to allow for detailed statistical analysis of the influence of housing tenure as outlined in the objectives of the W-159 Western Region Project. The Oregon data from the Western Regional Project W-159: "Consequences of Energy Conservation Policies for Western Region Households" were used. Data were collected in March 1981 by mail questionnaire from the stratified (50% rural/50% urban) random sample of 1503 Oregonians. The data base consisted of 812 responses, 118 from Oregon renters and 694 from nonrenters. Chi square statistical tests were used to test relationships between energy-related beliefs and home energy conservation behavior and between three belief requirements and actual behavior. The results of the chi square tests indicated: 1) renters and nonrenters both felt there is a serious energy problem, 2) renters significantly felt their homes to be less energy efficient and in need of more improvement than did nonrenters, 3) renters and nonrenters opposed requiring home thermostats for heating to be set no higher than 65°F in the winter, 4) renters more strongly favored while nonrenters more strongly opposed the requirement to set home thermostats for cooling no lower than 78°F in the summer, 5) renters and nonrenters favored providing larger tax credits for improving home energy efficiency, 6) renters and nonrenters significantly differed in their addition of structural energy-saving measures with nonrenters adding and renters not adding these measures, 7) renters and nonrenters did not significantly differ in their effort toward no-cost energy-saving measures; both renters and nonrenters did these efforts, 8) there were significant relationships between renters' and nonrenters' beliefs about the three policy requirements and their actual behavior. Understanding renters' energy beliefs and conservation behavior can benefit local and state government planners and housing officials, Oregon legislators, utility companies, educators, and researchers.
The Building America Partnership for Improved Residential Construction, the Bonneville Power Administration (BPA), and Northwest Energy Works (NEW), the current Northwest Energy Efficient Manufactured Housing Program (NEEM) administrator, have been collaborating to conduct research on new specifications that would improve on the energy requirements of a NEEM home. In its role as administrator, NEW administers the technical specs, performs research and engineering analysis, implements ongoing construction quality management procedures, and maintains a central database with home tracking. This project prototyped and assessed the performances of cost-effective high performance building assemblies and mechanical systems that are not commonly deployed in the manufacturing setting. The package of measures is able to reduce energy used for space conditioning, water heating and lighting by 50 percent over typical manufactured homes produced in the northwest.