Mining with no electricity costs. what would be efficient?

Hello,
came across this idea through VOSK-VT.
Would have from where I live 20-30kw/h continuously freely available without having to pay for it. so I think mining should be quite a profitable thing. I logged in to miningcentral and saw the T17E with 50th/s for ~2250 bucks. It would throw me at the current prices 6-8usd a day if I do not pay electricity and without waiting for a halving and whatever. Do I see this correctly? that would be too good to be true… Would there be more efficient methods than filling the 20-30kw/h with these miners? for sure I also click the affi-links before I order anything.
greetings mario

Don’t buy any “17” serial machines. They are bad and not reliable

Consider Avalon 1166 or 1246, those are on sale now.

Thank you! Is there a big difference between hashrate and hashrate? I thought, if this performance is promised, I can also count on it. which indicators would still be important if I do not have to pay attention to the energy consumption?

this one, for example? It is already used and refurbished. is this generally not recommended? it has 3250 watts and then I could put 6-7 in a container to cool them down with a climate and I would still have some power in reserve. then I have the 50x7 hashrate = 350 which would be about minerstat.com 45 usd a day. calculated with the current prices.

is that correct? :smiley: