{"$i":{"$W":"What do solar panels cost in Sumner County, TN?","$X":"As recorded in August, 2025, the standard cost for solar panel installations in Sumner County, TN is $4.06/W. The approximate cost of a 5 kW solar panel system in Sumner County, TN, after deducting federal tax credits, is $14,210.","$Y":"b"},"$Z":"dw"}