Many thanks to Mindles Dreck for re-introducing (or introducing, in my case) us to Sophismata, replete with interesting stuff, including this insightful analysis of power efficiency and price efficiency. Yay! That’s a point that will become increasingly important as we weigh increasing our energy generation from renewable sources, and particularly in light of the energy that goes into producing the things that we use to harness renewables, such as solar PV panels and platinum catalysts for breaking hydrogen out of fossil fuels to use in fuel cells.