Conservation of energy is limited to kinetic energy and has nothing to do with potential energy nor could it.

https://100wattlightbulbchallenge.quora.com/How-can-conservation-of-energy-be-a-law-if-it-is-not-always-a-law-from-different-points-of-view

https://emediapress.com/shop/secret-teslas-power-magnification/

https://youtu.be/rP6fpN6avIc?si=CaA3zwyyy3tT6wu9

https://patents.google.com/patent/US10122290B2/en?oq=Us10122290

https://patentimages.storage.googleapis.com/1b/89/3d/ad061e5584c883/US10122290.pdf

https://youtu.be/Sq1MP-qpTWc?si=C0DJYWtvKeA8UHCu

http://teslaspowermagnification.com/