LSMs by nature consume a lot less energy than LIMs do, as they only generate the necessary magnetic current needed relative to the trains speed via the stators which react with the permanent magnets mounted on the trains themselves.
LIMs on the other hand use the magnets externally mounted on the track and send a constant current needed for the "ideal" speed, and the trains themselves don't have magnets, but metal fins that react to the magnets on the track. LIMs are extremely inefficient, energy wise, and also generate a massive amount of heat which requires additional systems (fans or other) to cool down the LIMs.
LSM development has pretty much put LIMs into extinction, for good reason.
Due to the removal of WT and TTD, which required a very large power draw to run the hydraulics, and only adding a larger LSM system, I would assume that the overall energy draw will be significantly less.
Side note, it wasn't until yesterday that I realized Intamin offers a new-age Impulse coaster using their new track style and LSMs. The only example of this is an upscaled, new-era WT clone: Legendary Twin Dragon in China