The possibility of making a transition to an all-renewables system seems virtually impossible, for the reasons I have outlined.
The topic doesn’t seem to go away, because it is appealing to have a “solution” to what seems to be a predicament with no solution.Update (September 30): Contrasting articles suggest 100 percent renewable energy is a fantasy and that 100 percent renewable electricity is possible by 2030.
Update (February 27, 2018): Stan Cox criticizes plans for "100 percent renewable" energy that propose low per-capita levels of consumption for poorer nations.
Update (June 10, 2018): Gregor Hagedorn considers whether short-term exponential growth in renewable energy can lead to sustainability.
Update (September 2, 2019): Tim Radford points to promising research in Canada and Europe. Hydrogen gas can be extracted from bitumen and old oil fields by pumping in oxygen enriched air; and the wind potential in Europe could satisfy world demand for decades. But Radford is careful to point out:
Neither technology is likely to be exploited on a massive scale in the very near future.
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