Just to check, are you asking why we use AC instead of DC for power transmission?
From: Phys-l <email@example.com> On Behalf Of Bill Norwood via Phys-l
Sent: Sunday, February 21, 2021 9:45 PM
Subject: [Phys-L] youtube the.tragic story of nikola Tesla
In this story of Tesla's life it is mentioned that a crucial reason for going with ac for the bulk of electric power transmission is the ability to deliver (I think) twice as much power with pre-existing electric lines.