Energy max

Is there a way to raise the energy max? I'm level 58 with an energy max of 128. Used up all \~40 refills I was holding onto in a couple of days. There's only a pittance of refills available in the shop, and I'm loathe to be going in and out of the game all day long while the energy trickles in.

What's the fun of a game that I can't play?