Demand response services that engage consumers are an important emerging aspect of the smart grid. The advent of new consumer-facing technologies that communicate with the electric utility is enabling this transformation. This paper presents and analyzes case studies of different electric utility programs, including enabling technologies and incentives, on smart grid demand response. The program successes are evaluated in terms of reduction in peak load and/or customer energy usage and customer satisfaction. An analysis of lessons learned is provided on how various incentives can affect the success and scalability of smart grid demand response programs.