If you have the nutrient it will do but energizer works even better as it has a few more ingredients to help fermentation along. Here is an article from WineMaker Mag for you to read of them.
"Though they serve a similar purpose, the above additives are not one and the same.
Yeast hulls (sometimes called "yeast ghosts") are essentially yeast skeletons. They’re the freeze-dried empty shells of yeast cells that have had the water and other liquid elements sucked out of them. Sounds a little gruesome, but yeast hulls provide extra nutrients that are critical to a fermentation.
Yeast extract, on the other hand, is basically a concentrated slurry of dead yeast cells. It’s sold dehydrated or wet. This slurry is rich in vitamins, minerals, nitrogen and other elements, some of which yeast can use and some that they’ll simply excrete un-metabolized.
Yeast nutrient (sometimes called "yeast food") is a scientific, laboratory-formulated mix of good stuff (nitrogen, amino acids, certain proteins and minerals) that yeast need and actively metabolize in fermentation conditions. Yeast nutrient is the most expensive additive of the three and a little bit goes a long way.
It's up to each individual winemaker to decide which additives, if any, they choose to introduce into a fermentation. Mead and other fruit beverages, which may lack the proper balance of nutrients for a maximized fermentation, are classic cases where yeast nutrients, yeast hulls and yeast extract have been successfully used."
