Excellent article by an obviously informed writer. He makes it sound so logical... Why can't Consumer Reports get it right? http://www.homepower.com/files/featured/113_66.pdf In the article he says the spreadsheet he used will be posted for download. It is not yet available. I also found a Prius review he did back in 2001. I have yet to read it, but thought you might be interested. http://www.andykerr.net/Energy/Prius.pdf