@techreport{NBERw15386, title = "Evidence from Two Large Field Experiments that Peer Comparison Feedback Can Reduce Residential Energy Usage", author = "Ian Ayres and Sophie Raseman and Alice Shih", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "15386", year = "2009", month = "September", doi = {10.3386/w15386}, URL = "http://www.nber.org/papers/w15386", abstract = {By providing feedback to customers on home electricity and natural gas usage with a focus on peer comparisons, utilities can reduce energy consumption at a low cost. We analyze data from two large-scale, random-assignment field experiments conducted by utility companies providing electricity (the Sacramento Municipal Utility District (SMUD)) and electricity and natural gas (Puget Sound Energy (PSE)), in partnership with a private company, Positive Energy/oPower, which provides monthly or quarterly mailed peer feedback reports to customers. We find reductions in energy consumption of 1.2% (PSE) to 2.1% percent (SMUD), with the decrease sustained over time (seven months (PSE) and twelve months (SMUD)).}, }