{"$E":{"au":"What do solar panels cost in Macoupin County, IL?","av":"In August, 2025, the average cost of solar panels per watt in Macoupin County, IL is $3.67/W. Post federal tax credit, a 5 kW solar panel system installation in Macoupin County, IL will roughly cost $12,845.","aw":"b"},"ax":"dS"}