cost per watt installed solar
As of early 2015, itâs approximately $3.00 per installed watt. The average sized solar panel system is 5,000 watts, so this brings the total cost to $15,000.That 15k figure is just an average amount.he effective rate for solar power spread across the life of a system is $0.08/kWh. The average cost for conventional energy is $0.12/kWh and rising. The price for solar panel installation will be continued to be updated on this page.