Download or read book A Method for Determining Optimal Residential Energy Efficiency Retrofit Packages written by and published by . This book was released on 2011 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes an analysis method for determining optimal residential energy efficiency retrofit packages and, as an illustrative example, applies the analysis method to a 1960s-era home in eight U.S. cities covering a range of International Energy Conservation Code (IECC) climate regions. The example analysis is an introduction to retrofit optimization; more comprehensive future analyses will consider a wider range building types, retrofit measures, and locations.