Is their a way to get the energy back?
Turtonator GX as well as Victini Prism Star.
Victini Prism Star does 20 damage for every fire energy in your discard pile, then shuffles them back into your deck.
I would still run 1-2 Turtonator GX for the GX attack regardless. Turtonator GX is immediate acceleraction - Victini Prism is for the mid game when you burn out of energy and need a restock to keep the Magcargo system going. Also just in case prizes.
And just to keep this post supporter relevant, I would still suggest 1-2 Kiawe as well.