Sustainable Energy: Without the Hot Air
energy-basics arithmetic
MacKay works through Britain's entire energy system using arithmetic a motivated reader can reproduce, putting every source and sink of power in the same units and refusing to let adjectives substitute for numbers. Renewables come out physically constrained but far from useless, and the book is scrupulous about showing its work on every page. The free online edition made it the reference text for anyone who wants to reason about energy rather than have feelings about it.