Not sure if you are being sarcastic or not but I don't pay for power.
So my electrical costs will be $0.
That's great, as long as you're aware of the wattage required and have a properly wired space. For example, you'd probably have big problems in an apartment with owner-paid utilities.
Each Antminer S9 consumes around 1350 watts. Whoever is paying for power will notice a huge spike in power consumption.
Other SHA-256 coins like Bcash are an option too.