Predicting the arrival of solar energy for electricity that is as cheap as local electricity prices is actually harder than predicting the sunrise. But UCS’s new solar infographic tells this exciting crossover point is right in front of millions of homeowners across the country.

For more than 120 years, homes and businesses have been buying electricity. Now rooftop solar electricity production is changing the way hundreds of thousands of homeowners get energy. Most have added solar panels because this makes money, and that motivation will keep growing and spreading.

Small-scale solar photovoltaic (PV) systems on rooftops have suddenly become the most commonly built, most numerous electric generators, with individuals making decisions based on the cost of the solar panels and the price of their local electric utility.

via Rooftop solar: Grid parity coming in more than half of US states : Renew Economy.