This report is a final evaluation of Marblehead Municipal Light Departments (MMLDs) two-year Critical Peak Pricing (CPP) pilot program. It details the design, development, implementation and evaluation of the smart grid pilot program. MMLD was assisted by GDS Associates throughout the design and implementation of the pilot program. This evaluation report has been prepared jointly by MMLD, GDS Associates, and the Department of Energy (DOE) sponsored Technical Assistance Group (TAG), assigned to oversee and support this study. The TAG group provided invaluable contributions to the design, implementation and evaluation of the programs results. The design of the pilot study was closely coordinated between MMLD, GDS and the TAG and documented in MMLDs final Consumer Behavior Study Plan (CBSP), dated November 16, 2010.