 The WMLP serves 9,954 customers, of whom 8,812 are residential, 1,138 are commercial, and 4 are industrial.The largest customers (by electric demand) are Wellesley College, Babson College, Harvard Pilgrim, Sun Life Financial, and Wellesley Office Park.The WMLP holds membership in Northeast Public Power Association (NEPPA), American Public Power Association (APPA), and the Municipal Electric Association of Massachusetts (MEAM Mass).