{"$D":{"ay":"What do solar panels cost in Barnstable County, MA?","az":"The typical cost per watt for solar panels in Barnstable County, MA as of August, 2025 is $4.09/W. After the federal tax credit, the estimated cost for a 5 kW solar panel system in Barnstable County, MA is roughly $14,315.","aA":"b"},"aB":"dX"}