The average cost range of residential solar systems is anywhere from $10,000 to $25,000 for a 5 to 10 kW system (before any incentives). This will vary depending on where you live and your energy usage.

The average cost range of residential solar systems is anywhere from $10,000 to $25,000 for a 5 to 10 kW system (before any incentives). This will vary depending on where you live and your energy usage.