Since SunShot’s inception, the average price per kWh of a utility-scale PV project has dropped from about $0.21 to $0.11. Take a look at the interactive graph above, breaking down the falling cost of utility-scale PV over the past three years.ust three years into the initiative, SunShot is making significant headway. Today, the Energy Department announced that the U.S. solar industry is more than 60 percent of the way to achieving cost-competitive utility-scale solar photovoltaic (PV) electricity.