some facts.

you can expect around 30,5mh/s x 6 gpus from every rig (that makes around 183mh/s). You can expect something around 135W for every card. so around 22kW of power considering all the gpus + components.

Your ETH hashing power should be around 4800mh/s. If your Electricity cost is around  0,10 you make 511$ right now (that's not even considering ROI, bill taxes, or government taxes over profit. 0,11cnt/kW you make 352$ right now. 0.12cnt/kW you make 194$. and at 0,13cnt/kW you make 36$.


Now, the average price in my country for every kW is around 0,15€/kW (we pay 26% taxes over electricity prices due to leftists "idea" with green energy). Which is around 0,17$ (including all taxes). Talking in numbers, a guy living in my country with your setup, will be losing almost 600$ per month at current prices.