{"$j":{"$V":"What do solar panels cost in St. Tammany Parish, LA?","$W":"In August, 2025, the average cost of solar panels per watt in St. Tammany Parish, LA is $3.51/W. In St. Tammany Parish, LA, installing a 5 kW solar panel system will set you back approximately $12,285 after federal tax incentives.","$X":"b"},"$Y":"dv"}