If he manages to do that his electric bill would be enormous. And not in terms of usd but of KW.
With the government unable to provide 24/7 service I doubt he would be left alone mining with that kind of gear.
In maximum a month police would be at his door.
I expect he has the miners distributed across many sites to disguise the electricity use. According to that article he is taking huge precautions - living in a poor neighbourhood that doesn't get raided, wearing old clothes, keeping a low profile. It also said he had about a dozen relatives he is supporting, and I guess in return he is getting them to keep the miners on their premises.
Poor neighborhoods are the most raided. Also the one where power is cut more often.
You need 100 S9 for that income.How did he managed to get close to 300 000 dollars to buy that equipment?
Something is pretty fishy about this story.
This was obviously a while ago, so it is not entirely unlikely. If he came in early when they were still mining with CPU's and GPU's then he would
have been mining a load of coins with a much lower difficulty factor. Some people "steal" electricity and mine with much higher profits than
people that have to pay utility bills.
That is the reward for early adopters of bitcoins. You earn from being one of the first people to trust it and you profit because it was quite easy to get one, but at the time they were mining it the prices were really low so that means they were not really profiting much at the time they did it.