This piece, by Amory and Judy Lovins, was written in response to an article in The Wall Street Journal about the design, construction, and renovation of the Lovins’ home. The Lovins’ response draws economic conclusions opposite to those in the article, explaining how the house uses integrative design and clarifying the economics and engineering behind the building. The original article, along with a video and interactive drawing of the house are available from The Wall Street Journal.