This recently completed study discusses the potential of conservation and solar energy in Michigan. While much of the quantitative analysis is specific to Michigan, the problems and opportunities discussed are largely generic to the northern industrial states in the USA. Technical estimates of energy savings potential are combined with economic analyses and market penetration considerations to provide an overall picture of the potential for conservation and solar energy. Barriers to market penetration are used as a basis for identifying a wide range of economic, informational, and institutional policy options for consideration by government and private sector decisionmakers.