{"$O":{"aW":"What do solar panels cost in Hilton Head Island, SC?","aX":"As of August, 2025, the average solar panel installation cost in Hilton Head Island, SC has reached $3.53/W. The installation of a 5 kW solar panel system in Hilton Head Island, SC will cost about $12,355 after federal tax credits.","aY":"b"},"aZ":"$P"}