eli5: Why is Hydrogen termed as an energy “carrier” but Petroleum as an energy “source” ?

Question

Don’t we have to burn both to produce energy/electricity?

In: 0

Answer 1

There are no significant supplies of raw Hydrogen on Earth, so the only way we can produce it is by breaking down other compounds like Water.

That means we need to put in as much if not more energy into producing Hydrogen than we get out of it.

While Petroleum despite needing to be refined produces more energy than we put in.