No one meets the ImJamal Standard of Sovereignty. It's completely useless.
Might as well go with the source of energy that pollutes the least and allows you to be import-free for the longest amount of time - solar, wind, and batteries.
The US, Canada, Russia and many other countries could be sovereign with oil and coal.
China, Brazil, Russia and other countries have a lot of rare earth minerals to build electronics for turbines and other sources of power.
Australia, Canada, Russia and other countries have a decent amount of uranium.
So, yes, some countries meet the definition of energy sovereignty.
The US, Canada, Russia and many other countries could be sovereign with oil and coal.
China, Brazil, Russia and other countries have a lot of rare earth minerals to build electronics for turbines and other sources of power.
Australia, Canada, Russia and other countries have a decent amount of uranium.
So, yes, some countries meet the definition of energy sovereignty.