what do you know about scalar energy?

Answer 1

Depending on what you have to use it for I agree whit Answers, but it isn’t as simple as that and it is really a theory, but here goes:
We live in a 3-dimensional world, which physics calls "3-space." But there is also spacetime, or 4-space, or the "4th dimension." Then suddenly comes this amazing new knowledge that time itself is actually compressed energy. And it is energy which is compressed by exactly the same factor by which matter is considered compressed energy: the speed-of-light-squared!
So we have a new companion to the famous E=mc2. It is now paired with E=tc2 (where t is actually "delta-t," or change in time). Or (amaze your family and friends and) say:
"E equals em-cee-squared"
and
"E equals delta-tee-cee-squared"
I am not fully up to speed whit all this part of physics but I think this is what you are asking about !

Answer 2

Every type of energy is scalar, because it does not have a direction (otherwise it would be a vector, like force).