ESTABLISHED OVER 20 years ago, the National Association of Energy Service Companies (NAESCO) is a trade organization that encourages the widespread use of energy efficiency. On behalf of its members, NAESCO, based in Washington, D.C., attempts to open new markets for energy services. To reach this aim, the association promotes the importance of demand reduction to customers through seminars, workshops, training programs, and publication of case studies and guidebooks. As its chairm Buddy Hahs put it, “NAESCO's mission [is] to build market opportunities by encouraging customers and policy makers to rely on energy efficiency as the first energy priority. NAESCO has taken a leading role in establishing industry best practices and supporting its membership in the creation of tangible economic value.” As an association interested ...