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Electrician Jason Dzierzynski checks voltages and amperages on cryptocurrency computer mining rigs June 14, 2021, at Sangha Systems' cryptocurrency mining facility in in Hennepin, Illinois.
Antonio Perez / Chicago Tribune
Electrician Jason Dzierzynski checks voltages and amperages on cryptocurrency computer mining rigs June 14, 2021, at Sangha Systems’ cryptocurrency mining facility in in Hennepin, Illinois.

Midwest cryptocurrency mining facility

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Electrician Jason Dzierzynski checks voltages and amperages on cryptocurrency computer mining rigs June 14, 2021, at Sangha Systems' cryptocurrency mining facility in in Hennepin, Illinois.
Electrician Jason Dzierzynski checks voltages and amperages on cryptocurrency computer mining rigs June 14, 2021, at Sangha Systems’ cryptocurrency mining facility in in Hennepin, Illinois.
Wires connect cryptomining computer servers June 14, 2021, at Sangha Systems' cryptocurrency mining facility in Hennepin, Illinois.
Wires connect cryptomining computer servers June 14, 2021, at Sangha Systems’ cryptocurrency mining facility in Hennepin, Illinois.
Vince Gatza enters an area housing two 41-megawatt transformers June 14, 2021, at Sangha Systems' cryptocurrency facility in Hennepin, Illinois. The company is planning to convert to solar power.
Vince Gatza enters an area housing two 41-megawatt transformers June 14, 2021, at Sangha Systems’ cryptocurrency facility in Hennepin, Illinois. The company is planning to convert to solar power.
Vince Gatza, of Gatza Electrical Contracting, a Sangha Systems partner, works June 14, 2021, inside an electrical substation for the cryptocurrency mining facility in Hennepin, Illinois.
Vince Gatza, of Gatza Electrical Contracting, a Sangha Systems partner, works June 14, 2021, inside an electrical substation for the cryptocurrency mining facility in Hennepin, Illinois.
A cryptocurrency facility is seen June 14, 2021, in Hennepin, Illinois. The 25,000-square-foot facility, which formerly served as a boiler house for a steel mill, is about one-third filled with servers making the complex calculations that mine and mint bitcoins.
A cryptocurrency facility is seen June 14, 2021, in Hennepin, Illinois. The 25,000-square-foot facility, which formerly served as a boiler house for a steel mill, is about one-third filled with servers making the complex calculations that mine and mint bitcoins.
Cryptocurrency computer mining rigs are seen June 14, 2021, in Hennepin, Illinois.
Cryptocurrency computer mining rigs are seen June 14, 2021, in Hennepin, Illinois.
A grassy field, seen June 14, 2021, is planned to be the site of a solar array at the Sangha Systems cryptocurrency mining site in Hennepin, Illinois.
A grassy field, seen June 14, 2021, is planned to be the site of a solar array at the Sangha Systems cryptocurrency mining site in Hennepin, Illinois.
Electrician Jason Dzierzynski works on cryptomining computer servers June 14, 2021, at Sangha Systems in Hennepin, Illinois.
Electrician Jason Dzierzynski works on cryptomining computer servers June 14, 2021, at Sangha Systems in Hennepin, Illinois.
The former steel mill in Hennepin, Illinois, seen June 14, 2021, has a substation with the capacity to deliver 82 megawatts of electricity. The cryptocurrency mining facility is currently using about 7 megawatts, or about half of the electricity used by the entire steel mill at full operation.
The former steel mill in Hennepin, Illinois, seen June 14, 2021, has a substation with the capacity to deliver 82 megawatts of electricity. The cryptocurrency mining facility is currently using about 7 megawatts, or about half of the electricity used by the entire steel mill at full operation.
Vince Gatza enters a substation with two 41-megawatt transformers June 14, 2021, at the cryptocurrency facility in Hennepin, Illinois.
Vince Gatza enters a substation with two 41-megawatt transformers June 14, 2021, at the cryptocurrency facility in Hennepin, Illinois.
Jason Dzierzynski checks cryptocurrency computer mining rigs June 14, 2021, at Sangha Systems in Hennepin, Illinois.
Jason Dzierzynski checks cryptocurrency computer mining rigs June 14, 2021, at Sangha Systems in Hennepin, Illinois.
Cryptocurrency computer mining rigs are seen June 14, 2021, in Hennepin, Illinois.
Cryptocurrency computer mining rigs are seen June 14, 2021, in Hennepin, Illinois.
Sangha Systems cryptomining computer servers are seen June 14, 2021, in Hennepin, Illinois.
Sangha Systems cryptomining computer servers are seen June 14, 2021, in Hennepin, Illinois.
Electrician Jason Dzierzynski works on a panel box at the cryptocurrency mining facility in Hennepin, Illinois, on June 14, 2021.
Electrician Jason Dzierzynski works on a panel box at the cryptocurrency mining facility in Hennepin, Illinois, on June 14, 2021.
Sangha Systems' facility has two 41-megawatt transformers, seen June 14, 2021, that can power the cryptocurrency mining in Hennepin, Illinois. The site plans to shift to solar power.
Sangha Systems’ facility has two 41-megawatt transformers, seen June 14, 2021, that can power the cryptocurrency mining in Hennepin, Illinois. The site plans to shift to solar power.

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