%0 Conference Paper %K Energy Markets and Policy Department %K Energy Analysis and Environmental Impacts Division %K Renewable energy: policy %A Merrian Borgeson %A Mark Zimring %A Charles A Goldman %B ACEEE Summer Study on Building and Energy Efficiency %D 2012 %T The Limits of Financing for Energy Efficiency %U http://aceee.org/files/proceedings/2012/data/papers/0193-000155.pdf %8 08/2012 %9 Preprint version of paper for conference proceedings, ACEEE Summer Study, August 13-17, 2012