I designed solar systems for residential and commercial facilities,before I retired. thanks for the insight. Solar is still cheaper up front cost. Ths difference is the Utility Company subsidizes the cost, just like cell phone providers subsidize costs for customers. Average cost for a residential cost to the utility Company over $5,000. You pay $0. priceless. The Gas Company will come along behind the Electric Company and subsidize your energy usage with gas systems, and subsidize that too. average solar installation is equal to or less than normal; power install. Approach rhe situation as if you had no power and had to pay for pole, transformer, line, service, and meter. That cost is about $10K. Solar runs about $10K and up. Tesla is going to give away the solar wall just to bankrupt the the electric monopoly. Sunlight is still free last time I checked along with air. I have installed solar on a RV and it collected so much energy, I had to hook up a fan to come on to release excess energy that could not be stored in the four deep cycle marine batteries. Great for camping in th mountains, when that diesel will not start in the cold morning, the batteries warm up the motor and off you go. enjoy.