Actually they are exactly the same thing - seasonal storage with efficiency over 50% is basically magical infinite energy battery. Just like anti-gravity machi

Actually they are exactly the same thing - seasonal storage with efficiency over 50% is basically magical infinite energy battery. Just like anti-gravity machine, neither breaks the laws of physics, and neither has any known method for an engineer to implement. Currently, you either need preposterous quantity of batteries, or you are stuck creating synthetic/green fuels at efficiencies of ~20% or less.