Infographic Affordable Rooftop Solar in the United States Union of Concerned Scientists
Infographic: Affordable Rooftop Solar in the United States
By 2017, more than half of U.S. states could have rooftop solar that's as cheap as local electricity rates.
Rooftop solar costs are falling
Since 2007, the cost of installing an average-sized rooftop solar system has nearly halved. In fact, after accounting for tax credits, rebates, and other support, in leading states a 5 kilowatt system could cost homeowners
less than $10,000.
Many homeowners have the option of leasing, potentially paying nothing for installation and instead paying ongoing monthly fees.
Solar is increasingly affordable everywhere
The plunging costs of solar systems and the broad availability of sunlight mean that rooftop systems are increasingly able to compete with electricity from the grid around the country. By comparing average local electricity costs with the projected average national price of an installed rooftop solar system, we can estimate the percentage of states that may have—or may soon have—competitive rooftop solar power.
The result? By 2017, more than half of U.S. states could have rooftop solar that’s as cheap as grid electricity—even
without considering state and local incentives. Most regions already have a state that’s cost competitive, and many more states may soon come online.
Solar will become one of the three pillars of the coming energy triad in this nation, wind, solar, and geolthermal.