The Tri-County Regional Energy Network addresses one of the most persistent structural gaps in electrification deployment: the shortage of trained, locally available contractors who understand how to navigate available incentive programs. 3CREN operates a contractor marketplace connecting households and businesses with qualified local installers, paired with contractor training programs that build both technical skills and incentive-stacking knowledge. The training component is particularly important — contractors who understand how to identify and combine available rebates, utility programs, and state incentives can substantially reduce out-of-pocket costs for customers, making projects financially viable that would otherwise stall. By treating contractor capacity as a supply-side constraint that requires active investment rather than an assumed market outcome, 3CREN provides a replicable model for how regional energy networks can serve as workforce infrastructure for equitable electrification deployment.