{"$x":{"ax":"What do solar panels cost in Marshalltown, IA?","ay":"As of August, 2025, the average per-watt cost for solar panels in Marshalltown, IA is $3.95/W. Post federal tax credit, a 5 kW solar panel system installation in Marshalltown, IA will roughly cost $13,825.","az":"c"},"aA":"eu"}