For 3pp per level, I can get Protection with an extra of Boost or Healing (self only).
Absorbtion is equivalent to this, only there's a limit to when I can use the Boost, plus I'm limited to either physical or energy. This doesn't seem worth 3pp/level. So, what would balance this out?
Possibility 1 is that with Absorbtion, you can actually Boost/Heal by more than your ranks in absorbtion (if you've absorbed 10 points, can you burn all 10 in one round?). IF this is true, it might balance out, but I'm not sure even then..
Possibility 2 would be to make Absorbtion better; say, spending absorbed points is a free action, or even an automatic action for some effects (say, with absorbtion healing you'd heal whenever you got hit, automatically). The second version might be overpowered.
Possibility 3 would be to errata it down to 2pp.