I have access to free electricity, soi have very good profit of my antminers.
How much free electricity? Unless you have access to megawatts, it's barely worth mining any more.
The best post I've read in ages!
99% of the people who say, "I have free electricity" are in dorm rooms or apartments. And they have no idea just how much electricity it takes to earn significant BTC income. AND they have no idea just how much heat and noise mining will generate.
A standard dorm room's electricity will be capable of earning about $4.00 per day. An apartment, maybe 3 times that... before the landlord comes-a-knockin' and starts asking if you have a grow-farm in your apartment.