{"$Y":{"bv":"What do solar panels cost in Northwest Harwich CDP, MA?","bw":"In August, 2025, the average cost of solar panels per watt in Northwest Harwich CDP, MA is $4.11/W. The installation of a 5 kW solar panel system in Northwest Harwich CDP, MA will cost about $14,385 after federal tax credits.","bx":"q"},"by":"aA"}