David P wrote:
Bitcoin Mining Operation Is Uncovered During U.K. Drug Bust
By Davies & Ostroff, 5/28/21, Wall St. Journal

British police got a shock when they raided a suspected
illegal cannabis farm this week: Instead of halogen lamps &
weed, they found about 100 computers mining bitcoin.

Officers from the West Midlands Police forced entry into
the warehouse in an area west of the city of Birmingham
known as the Black Country with a drug warrant, after intel
suggested it was being used to grow the illegal crop.

Unusual amounts of wiring & ventilation were visible on the
outside of the building & a drone had measured high levels
of heat rising from it€”classic signs of a cannabis factory.
But the officers broke in to discover a huge bank of
computers in what they now suspect was a cryptocurrency mine.

They also found that the computers used stolen electricity
by tapping directly into the power supply outside of the
warehouses circuits. Police said the mine consumed
thousands of pounds worth of electricity.

Actually, they're using Bitmain boxes, at around £3000 each.
At least £180,000 worth of mining equipment is pictured here.

https://i.guim.co.uk/img/media/6d318...9fe7d10a6556e0

The power consumption of what is pictured, would be 60kW.

The Chinese facility (that they claim was recently shut
down, but who knows), that one has 25000 machines
and 25MW of power consumption. There was an IEEE Spectrum
article about that facility, back when it had fewer sheds.

https://nypost.com/wp-content/upload...6&h=820&crop=1

Paul