Central Maine Power

Central Maine Power (CMP) is the largest electric utility in Maine, serving around 670,000 customers across central and southern Maine. Founded in 1899, it operates an extensive transmission network with thousands of miles of power lines and substations. CMP is a subsidiary of Avangrid, part of the global Iberdrola Group. The company focuses on providing reliable, affordable electricity while investing in renewable energy and infrastructure improvements. It serves about 78% of Maine’s population and prioritizes community engagement and environmental responsibility.