so it was all 3000 watt 90 th machines

so 24 x 3 = 72 kwatts a day at 5 cents 3.60 for power

and 90 th x 4 cents is 3.60

so the gear was break even

which means fuck it we do not want to buy all new s21 xp

which do 270 th at 3500 watts

they burn 84 kwatts or 4.20

and they earn 270 x 4 = 10.80

they could run 2000 making 6.60 on each one or 13200 a day

but 2000 s21xp cost about 14 million.

do i want to lay out 14 million to clear 13,200 a day

comes to 4.7 million a year which means more than 3 years to get back the 14 million

or sell all of it maybe 600,000 for the s19 gear and call it a day.

if the s19 were paid off the 600,000 is profit.

the way mining is going I rather take the small profit.