Energy types might be more useful in some situations,however (as an experienced energy user) I can tell you they’re harder to play with.
Sure,they are useful when your opponent has a build full of weapons that use energy,but…
A heat type mech can easily beat an energy type,and here’s why:
Many heat weapons don’t use energy at all,while all the energy weapons do.
Heat builds with a couple energy-free weapons can battle with nothing but their base energy/regen and only upgrade their heat,cooling and hp,while energy types have to upgrade those plus max energy and regen.That means,in order to have good energy stats,we need to sacrifice some max heat or,in most cases,cooling.That’s why you can overheat us pretty easily then rip off our insides
While overheats occur at the beginning of the turn and regens at the end of it,that would mean that if you overheat me,next round (after my overheat break),after I have less action points,I might not be able to drain all of your energy.That means more energy for you every turn,that you’ll use to overheat me again,thus,repeating this cycle until I’m beat.
I could continue but it’s already a whole lotta text.Hope you get it
Summary:Energy mechs have both their advantages and disadvantages against heat builds.I wont even go through energy types vs physical types or hybrids.