There is a wealth of experience among industrialized countries with technologies and policies to increase electricity end-use efficiency. Some developing countries are beginning to adopt these technologies and policies as well. Technologies include efficient residual appliances, HVAC equipment, light, motors and efficient industrial processes. A small number of market failures that limit the acceptance of these efficient technologies in both industrialized and developing countries are described. Experience with policies to overcome these failures and promote electricity end-use efficiency, including information programs, appliance efficiency standards, financial incentives to appliance manufacturers, commercial building energy standards, integrated resource planning, and demand-side management, is reviewed.