Comfy saves energy in two main ways: by reducing cooling and heating where and when it isn't being used, and by reducing cooling and heating that's unwanted.
Comfy learns which rooms aren't used often, and when no one is in the office. It then starts to reduce conditioning during unoccupied times, which saves a lot of energy.
But also, have you ever noticed office buildings that are too cold in the summer? Imagine all of that wasted energy that we use to freeze ourselves during the middle of the hot summer! Not only is this a common problem, it is a bigger issue than office buildings being too hot in the summer! Comfy reduces that unneeded air conditioning, because we find that people actually like to be a little warmer in the summer, even indoors.