The opposite is true. Fusion is much more energetic than fission due to the binding energy curve - specifically its slope to the left of iron where fusion takes place compared to the slope to the right of iron where fission takes place. (Basically to go away from iron you have to add energy, while moving toward iron releases energy. This also explains why elements heavier than iron are thought to result mostly from supernovae, while iron and lighter are products of normal stellar lives.)
Fusion requires high temperature and pressure to take place, though - this is the reason for the search for so-called "cold fusion." So far we can only achieve fusion in the sort of conditions produced by a fission bomb, and indeed fusion weapons carry a small fission bomb to start things off.