Solar also has a much faster doubling time as a proportion of the world total than other renewable sources: on average, just under every twenty-eight months from 1983 to 2021—even as the total amount of electricity generation has increased by around 220 percent in that same span in absolute terms.234 From 3.6 percent in 2021, it would take only about 4.8 doublings to reach 100 percent, which would put us at 2032 to meet all of our energy needs from solar alone.
