I mined for over a year straight with three Antminers S9's machines in 2018. (I still have the machines) It hit a point where the electricity to operate the machines was earning less BTC then just buying roughly 450-500CND worth of BTC per month. Once the price started to rise again for BTC the machines were very inefficient compared to the new ASIC chips that were released two years later. They still to this date are not profitable to run. Barely mined 1 BTC with three machines for over a year of running.This quote is hidden because you are ignoring this member. Show Quote
I have not sold any BTC that I mined, and am still holding. This has been very profitable now, but that is only after this last bull run rally. There was a period of around two years being upside down on this mining experiment. If I looked at what I paid for the miners and electricity I would have been MUCH further ahead to just have bought BTC. I am very lucky I was in a position where I didn't need to sell to get the $$ and was able to hold to this bull cycle.