Nitrogen is usually a triple bonded substance where alcohol usually has a double bond. The triple bond is tightly held together consisting of 2 pi bonds and a sigma bond on their orbitals. When the bond breaks the energy holding the bond is released.

If you want more power you turn to splitting atoms. Nuclear fission. If you want even more power you combine heavy nuclei. Nuclear fusion. Fusion hasn't been harnessed yet, but probably will soon. Still not enough power? Start inventing an antimatter reactor.