Qualified Energy Conservation Bonds (QECBs) are low-interest bonds issued by state and local governments for qualified energy efficiency, renewable energy, and conservation projects, with Tennessee's allocation totaling $64.6 million; several projects utilizing QECBs in Tennessee and elsewhere are highlighted, demonstrating annual energy and cost savings; the document outlines Tennessee's process for competitively allocating remaining QECB funds to additional eligible projects across the state.