Cool way to think about GWh/year:

  1 GWh/year = (10 ** 9) / 24 / 365.25 / (10 ** 6) MW = 0.11 MW

  70 GWh/year = 8 MW
  1755 GWh/year = 200 MW
  252 GWh/year = 29 MW

Haha. Reminds me of how volt-amperes are technically the same unit as watts, but if you see VA in an electrical specification you know it means a different thing than it would if you saw W.

But not a very relevant for batteries, unless talking about discharge only once a year.

Grid batteries are discharged on average 80% per day, if not more. EV batteries... well, probably about 5%-10% per day at most.