A lack of incentives was cited as the second largest barrier to energy efficiency in the marketplace. In addition, the high cost of new investment in the space was cited as a stumbling block, as well as the fragmentation of the stakeholder community and an ongoing lack of adequate standards. The International Energy Agency rightly suggests that “no single policy is sufficient to overcome the problems. Instead, governments must design well-targeted policy packages to address [complex] problems in their specific national contexts, and within the particular constraints of a given sector