Can be obtained through a questline beginning with the quest Unsung Hero.

Full guide for the questline

Can be obtained by interaction outside of the broken questline - Unsung Hero can't be accepted after the Kama main quest was changed.

You can follow the questline guide made by the other guy in order to find the interaction points:
https://imgur.com/gallery/Co4t1

Just interact with the statue
https://imgur.com/a/Hu2EKQN

Someone stated that questline was removed during the "kama questline revamp", hence gotta just interact with the relevant locations to get for energy.