Mexican federal and local law enforcement uncovered an illegal cryptocurrency mining farm operating near a hydroelectric power plant in Puebla, where authorities suspect the operation stole electricity and may have laundered illicit funds through mined crypto assets. The raid, conducted by Mexico's Attorney General's Office, the Navy, and Puebla state police, revealed sophisticated mining infrastructure that had been operating in a remote mountain region.

What Did Authorities Find at the Mining Site?

The operation in the municipality of Tlaola, located in the Sierra Norte de Puebla near the Necaxa dam, contained substantial mining equipment and infrastructure. The facility was strategically positioned close to the region's hydroelectric system, which authorities say made it an attractive target for illegal electricity access.

• Graphics Processing Units: Approximately 300 GPUs were discovered at the site, representing significant computing power for cryptocurrency mining operations.
• Electrical Infrastructure: The farm included a transformer and roughly 80 medium-voltage terminals, indicating the operation was designed to draw substantial power from the grid.
• Communication Equipment: Eight satellite internet antennas were found on the property, allowing the miners to maintain connectivity in the isolated mountain location.

The discovery underscores the scale of energy consumption required for modern crypto mining. According to the Cambridge Bitcoin Electricity Consumption Index, global electricity consumption associated with Bitcoin mining averaged about 120 terawatt-hours (TWh) in 2023.

How Are Authorities Investigating the Electricity Theft?

Cryptocurrency mining itself is legal in Mexico, so the primary focus of the investigation centers on whether the farm illegally accessed electricity from the Federal Electricity Commission (CFE), the country's state-owned utility. The farm's location near critical energy infrastructure drew law enforcement attention over several years of operations in the area.

"This activity consumes a lot of energy and creates a lot of noise, so these sites are sought out in remote and very isolated places. That caught our attention," said Vice Admiral Francisco Sanchez Gonzalez, head of Puebla's State Secretariat of Public Security.

Vice Admiral Francisco Sanchez Gonzalez, Head of Puebla's State Secretariat of Public Security

The scale of electricity theft in Mexico is substantial. According to the latest available data from CFE Distribución, electricity theft, meter tampering, and illegal connections accounted for 6,346 gigawatt-hours (GWh) of consumption between January and July 2024, representing approximately 13.8 billion Mexican pesos (roughly $813.64 million USD) in lost electricity value.

Why Are Authorities Investigating Money Laundering Connections?

Beyond the electricity theft allegations, Puebla's State Secretariat of Public Security is examining whether the cryptocurrency assets generated by the mining operation were used to launder funds linked to criminal activity. This line of inquiry reflects broader concerns about how criminal organizations use digital assets to move and legitimize illicit proceeds.

"Authorities are analyzing whether virtual assets obtained through this infrastructure could have been used to give a lawful appearance to resources linked to illegal activity," stated the Puebla State Secretariat of Public Security.

Puebla State Secretariat of Public Security

Research on Mexican drug cartels has documented schemes in which proceeds from illegal fentanyl trafficking were converted into cryptocurrency and then exchanged into Chinese yuan through networks of underground money exchangers. The discovery of this mining farm suggests authorities are taking seriously the potential connection between mining operations and criminal financial networks.

Vice Admiral Sanchez Gonzalez indicated that this operation may not be isolated, stating that authorities suspect additional hidden mining farms exist in the Tlaola area. The combination of remote location, proximity to power infrastructure, and the significant energy demands of mining operations make such sites attractive to illegal operators seeking to avoid detection.

This bust is part of a broader international crackdown on illegal mining. Thailand recently uncovered an illegal crypto mining network with annual turnover exceeding $300 million, and Malaysia has reported significant results from its enforcement operations against illegal mining since 2022.