@aviationdoctor.eth
The UPS shows that my setup is using about ~72 watts, so you can translate that into $ where you live.
I’ve run an Ethereum node for about as long as Ethereum has been a thing, and a Bitcoin node before that, as an altruistic hobby for the sake of the network. In the case of Quilibrium, the node is also mining, but unprofitably so. It’s not a positive ROI setup for either CapEx or OpEx.