James M. Van Nostrand, speaking as part of MIT's RES.ENV-007 Geothermal Energy Networks course during IAP 2025, lays out the policy landscape for networked geothermal heating systems. He covers Massachusetts clean energy targets, the statutory frameworks that enable utilities to pursue geothermal networks, and the regulatory structures overseeing them. The talk reviews current geothermal energy network demonstration projects underway in the state, connecting legal and regulatory detail to actual deployed infrastructure. Delivered as a session within a short IAP course co-taught with HEET, a nonprofit focused on decarbonizing thermal energy, the lecture gives a concise view of how climate policy translates into utility-scale pilot projects on the ground in Massachusetts.