{"$A":{"am":"What do solar panels cost in Effingham County, IL?","an":"In Effingham County, IL, the mean cost per watt for solar panels as recorded in August, 2025 is $3.57/W. With the federal tax credit, the cost of a 5 kW solar panel system in Effingham County, IL drops to roughly $12,495.","ao":"b"},"ap":"dL"}