We’re discovering that a lot of pro-renewables people think that our book and this lecture is a broad, categorical swipe against renewables per se, rather than a swipe at Jacobson’s 100% scheme. To put this in perspective:
Roadmap to Nowhere is not an argument against renwable energy.
It's an argument against a particular idea that many people have come to believe about renewable energy, which doesn't seem to square with the facts:
The idea that renewables could actually power the entire nation – electricity, heating, transportation, industry, shipping, the works – and do it so well that we won't need power plants that run on actual fuel.
Since our preferred source of clean energy is nuclear fuel, we framed our rebuttal by comparing an all-renewables grid with an all-nuclear grid.
Both, of course, are hypothetical scenarios, since neither grid would ever exist in its pure form. Humanity’s energy needs aren’t monolithic, and they never were. In the real world, and in the very real future, nuclear will be best for some scenarios and renewables for others. Big country, small planet.