solar panel cost
The average installed system will cost $7-9 per watt. So, multiply the average hourly watt hours you need to generate that you got from the last step by something between $7 and $9 and that is what it will cost for solar panels with enough capacity to power your house.Solar Power Calculator.he average installed system will cost $7-9 per watt. So, multiply the average hourly watt hours you need to generate that you got from the last step by something between $7 and $9 and that is what it will cost for solar panels with enough capacity to power your house. Solar Power Calculator.