The purpose of this report is to examine the impact of the water-energy nexus in the United States, and identify opportunities for increased collaboration between water and energy utilities. Through reviewing the regulatory history of both sectors, I explore how regulations on utilities align with the Porter Hypothesis, and the impacts the water-energy nexus will have moving forward, including under climate-change scenarios. The extent of collaboration between sectors has been relatively limited to states with progressive energy and water efficiency policies. This report identifies existing barriers and benefits to collaboration, and utilizes two case studies; California and Massachusetts. Results are used to explore how lessons can be applied to other parts of the United States
