Unclear from article (at least, for me) how much of this is existing stock grants only now vesting, vs. approved raises/new grants/etc.
Not that it particularly matters --- big compensation at the top with tumult for the folks at the bottom is...not a good look.
Fun fact, the (rough) conversion efficiency of calories to mechanical joules in the human body (separate from the mechanical to electrical you're referring to) is about 25% --- but this is about the same factor as going from calories to joules! So, for a human to put out 13.5 kJ of energy would require about 13.5 food calories (kilocalories).