Why Tether Shut Down Its Bitcoin Mining Operation in Uruguay

Tether has exited its Bitcoin mining operation in Uruguay after a prolonged dispute with the country’s state-owned power utility over electricity capacity, ending a project once positioned as a potential launchpad for the company’s wider South American mining expansion.

The dispute involved two mining sites in Florida, Uruguay, and centered on how much electricity Tether’s local unit, Microfin, was entitled to receive under its agreement with UTE.

The Block reported the development on August 23.

Power dispute brings the project to an end

The disagreement began after the two mining facilities initially operated normally but later encountered constraints as their electricity requirements increased.

Tether interpreted the contracted power allocation as a minimum level that could subsequently be expanded. UTE, Uruguay’s state power company, interpreted the agreement differently, treating the contracted amount as the maximum available capacity.

The companies attempted to amend the agreement as demand increased, but negotiations failed to produce a final arrangement.

Microfin eventually stopped paying its electricity bills and informed UTE in June 2025 that it intended to terminate the contract.

UTE subsequently cut electricity supplies to both mining facilities on July 25, 2025.

Tether later informed Uruguay’s labor authorities in November 2025 that it planned to close the local operation and lay off most of its employees.

The project was estimated to involve approximately $120 million, although Tether has never publicly disclosed an official investment figure.

Uruguay was supposed to be a mining gateway

Tether entered Uruguay in 2023 with ambitions extending beyond the two sites.

The company had identified Uruguay’s renewable energy resources and relatively stable electricity grid as attractive characteristics for Bitcoin mining. The country was intended to serve as a testing ground before potential expansion into Brazil, Paraguay and Argentina.

That strategy has now changed, highlighting one of the central challenges facing industrial Bitcoin miners: access to predictable and economically viable electricity can be just as important as mining hardware or Bitcoin market conditions.

The Uruguay experience also demonstrates how contractual interpretations can become significant operational risks when mining facilities require substantially more power as they scale.

Tether’s South American strategy is not over

The withdrawal from Uruguay does not mean Tether has abandoned Bitcoin mining or renewable-energy infrastructure across South America.

The company continues to pursue related investments elsewhere, including its acquisition of a 70% stake in renewable energy company Adecoagro.

Tether has also explored using surplus electricity from renewable-energy operations for Bitcoin mining, maintaining its broader strategy of combining energy infrastructure with digital-asset operations.

That distinction matters. The Uruguay exit appears to be a project-specific setback rather than a complete retreat from the region’s energy and mining sector.

Mining economics are becoming more complicated

The broader Bitcoin mining industry is facing increasing pressure to find efficient ways to use expensive infrastructure.

Reuters has reported that high electricity costs, Bitcoin prices and the possibility of converting mining facilities into artificial intelligence data centers are influencing how operators assess long-term profitability.

Mining facilities increasingly compete not only for electricity but also for the highest-value use of their power and data-center infrastructure.

This creates an important strategic shift. A site initially developed for Bitcoin mining may eventually have greater value as an AI or high-performance computing facility, particularly where power availability is constrained.

For Tether, the Uruguay dispute adds another example of how energy agreements can determine whether a mining expansion becomes a scalable operation or an expensive infrastructure project.

What happens next for Tether’s mining strategy?

The Uruguay shutdown leaves Tether with a more complicated regional picture.

The company still has exposure to renewable energy and Bitcoin mining infrastructure elsewhere in South America, but the failed agreement with UTE illustrates the importance of securing long-term power arrangements that can accommodate future demand.

For miners, the economics increasingly depend on several variables moving together: electricity pricing, energy availability, Bitcoin market conditions, hardware efficiency and alternative uses for data-center capacity.

The Uruguay case therefore goes beyond one company’s exit. It shows how the next phase of Bitcoin mining expansion may be shaped as much by energy contracts and infrastructure economics as by cryptocurrency prices.