The Marblehead Municipal Light Department (MMLD) project involved town-wide installation of a fully integrated advanced metering infrastructure (AMI) system. MMLD deployed a two-way communications network, over 10,000 AMI meters, an energy management web portal, and demand response equipment. The project also included a pilot program to assess the effectiveness of critical peak pricing (CPP) and automated in-home load management, as well as a study of consumer behavior in response to the CPP pilot.