Sun vs. Coal

Electricity from the grid is getting more expensive. Electricity from photovoltaics is getting cheaper. At what point does solar become less expensive than the power coming from our existing grid?

There's a app for that. Or rather a chart. But it's animated!

The nice folks at Energy Self-Reliant States have created an animated chart that shows you when solar will be cheaper that the existing electricity sources in your area, but in the meantime here are some fun facts...

1. The cost of solar decreases by 7% per year.
2. The grid electricity price increases by 2% per year.

Here's a link to the chart.