In his regular email, Peter Diamandis writes,
Currently, the amount of solar installed each year increases by 35 to 40 percent.
…One megawatt of solar power is estimated to require 8 acres of land. U.S. solar capacity is on the order of 3,000 megawatts (only 0.65 percent of U.S. power produced)
Total electricity demand in the U.S. has been flat in recent years. So let’s play with a 40 percent rate of increase starting from a low base of 0.65 percent of U.S. power production. At that rate, it will take about 7-1/2 years for solar to account for 10 percent of U.S. power production. But then in another 7-1/2 years, it would be 100 percent.
Of course, the solar exponential might not be that high. Still, it is an interesting illustration of the potential of compound growth.