The amount of electricity Salad uses will depend on the hardware in your machine, as well as how you use Salad. If you are CPU mining, your power draw can range from a lowly 15 watts on a low powered laptop CPU, all the way to over 300 watts on a high core, high performance Ryzen Threadripper class CPU
GPU mining can range from 75 watts on lower power GPUs such as a GTX 1050ti, or a GTX 1650, all the way to 350 watts on AMD and NVIDIA's latest high end monster GPUs.
You can find the average power draw for your GPU or CPU by checking the manufacturers pages. If you have underclocked or overclocked your GPU/CPU, you might also be able to find it in your overclocking software.