{"ai":{"bR":"What do solar panels cost in Woodlawn CDP (Fairfax County), VA?","bS":"In August, 2025, the average cost of solar panels per watt in Woodlawn CDP (Fairfax County), VA is $3.41/W. The approximate cost of a 5 kW solar panel system in Woodlawn CDP (Fairfax County), VA, after deducting federal tax credits, is $11,935.","bT":"q"},"bU":"aK"}