{"$x":{"ag":"What do solar panels cost in Fairfax city, VA?","ah":"The typical cost per watt for solar panels in Fairfax city, VA as of August, 2025 is $3.4/W. After federal tax credits, the installation of a 5 kW solar panel system in Fairfax city, VA is estimated to cost $11,900.","ai":"b"},"aj":"dH"}