The document discusses the importance of energy efficiency as a key solution for cost savings, sustainability, and environmental goals, emphasizing its potential in both traditional and liberalized power markets. It highlights various challenges faced in delivering large-scale energy efficiency programs, such as financing and market barriers, and explores successful case studies, particularly Vermont's experience. Effective policies and managerial structures are necessary to enhance energy efficiency and achieve significant savings, suggesting a target of 30-50% of future energy service needs to be met through efficiency measures.