Your calculation is not very helpful either, and it’s not only because division error (10/0.2 is 50, not 20). More importantly, an average minivan most likely n

Your calculation is not very helpful either, and it’s not only because division error (10/0.2 is 50, not 20). More importantly, an average minivan most likely never reaches its full power over its lifetime. It would make more sense to consider its energy use as it cruises, which is probably something like 50-70 HP. So, one 10 MW turbine is really rather 200-250 minivans, not 20 — a whole order of magnitude.