Just last week, the average price of a gallon of unleaded gas in St. Louis was $3.20. By Monday, the average price for regular gasoline on the Missouri side of the St. Louis region reached $3.59 a gallon, according to AAAâs Daily Fuel Gauge Report. Thatâs up 28 cents from this time last year.
But, by 2016, Deutsche expects solar energy to reach price parity in all 50 states. For example, the cost of solar-generated electricity in the top 10 states for capacity ranges from 11-15 cents per kilowatt hour (c/kWh), compared to the retail electricity price of 11-37 c/kWh.
The average homeowner would save at least $25,000 over 25 years by investing in a solar panel system. So what is the current low-end cost of residential solar power? As of 2017, itâs approximately $3.00 per watt, installed. 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. Systems can cost more or less mostly depending upon a homeownerâs energy usage.