Tether’s $120 Million Bitcoin Mining Bet in Uruguay Collapses

After Power Dispute

Tether’s ambitious Bitcoin mining expansion in Uruguay has ended after a prolonged dispute with the country’s state-owned electricity provider, highlighting the growing importance of power costs, energy contracts and infrastructure in the economics of large-scale Bitcoin mining.

The project, launched in 2023 as a potential gateway to wider South American expansion, involved an estimated $120 million investment across two mining sites in Uruguay’s Florida department. According to a Reuters investigation cited by Bitcoin.com, the operation ultimately unraveled after disagreements over electricity allocations, unpaid bills and a subsequent power cutoff.

From Renewable-Energy Opportunity to Power Dispute

Tether entered Uruguay in May 2023, attracted by the country's extensive renewable-energy infrastructure and established electricity grid.

The company described Uruguay as an attractive base for sustainable Bitcoin mining and intended the country to serve as a potential testing ground for broader operations in South America.

The two mining facilities were reportedly located in the rural Florida department, with a former contractor estimating that Tether invested approximately:

• $60 million in the first site
• $60 million in the second site
• ~$120 million total

Tether did not publicly disclose the investment amount when the project was announced.

The Core Problem: How Much Electricity Could Tether Use?

At the center of the collapse was a disagreement between Tether's local entity, Microfin, and Uruguay's state-owned utility UTE.

The two sides reportedly interpreted their electricity agreement differently.

Tether's interpretation

Tether reportedly understood the contracted electricity allocation as a minimum amount that could be increased as the mining operation expanded.

UTE's interpretation

UTE viewed the agreed allocation as a maximum power limit that the mining sites could not exceed.

As the mining facilities increased their electricity requirements, the disagreement became increasingly important.

The sites reportedly experienced periods where they did not have enough power to operate consistently.

Unpaid Electricity Bills Escalate the Conflict

The disagreement eventually moved beyond contract interpretation.

According to the reported investigation, Tether's local entity stopped paying electricity bills after negotiations over a revised agreement failed.

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

The situation ultimately resulted in Tether ending its Uruguayan operations and laying off most of its local workforce.

Reports indicate that 30 of the company's 38 local employees were eventually affected by the shutdown.

Renewable Energy Wasn't Enough

One of the most interesting aspects of the story is that Uruguay is widely recognized for its renewable-energy infrastructure.

The country generates approximately 98% of its electricity from renewable sources, primarily through hydropower and wind.

That initially made Uruguay attractive to Tether as a location for sustainable Bitcoin mining.

But the project demonstrates an important reality:

Renewable electricity does not automatically mean cheap electricity.

Bitcoin mining is extremely sensitive to electricity costs because miners continuously consume large amounts of power to operate specialized computing hardware.

A country can have an exceptionally clean energy mix while still being economically challenging for Bitcoin mining.

Bitcoin Mining Economics Are Getting Tougher

The collapse also comes amid a challenging period for the global mining industry.

Bitcoin's April 2024 halving reduced the block reward available to miners, cutting the amount of new BTC generated per block.

At the same time, mining companies face:

• Higher hardware costs
• Increasing network difficulty
• Electricity-price volatility
• Infrastructure expenses
• Financing costs
• Competition from increasingly efficient mining operators

When Bitcoin's price falls or electricity costs rise, mining margins can quickly become compressed.

This has pushed miners to search for cheaper power and more efficient business models.

Mining Companies Are Looking Beyond Bitcoin

The economics of large-scale computing are also changing.

Some mining operators are increasingly exploring whether their infrastructure can support AI and high-performance computing (HPC) workloads.

That creates a potential alternative:

Bitcoin mining → AI/HPC data centers

The computing infrastructure required for these industries differs, but mining companies increasingly see access to cheap and reliable power as an asset that can potentially serve multiple forms of computation.

Analysts cited in reporting on the Uruguay project suggested that Uruguay's infrastructure may ultimately be better suited to data-center applications than Bitcoin mining because mining depends particularly heavily on cheap electricity.

Tether's Broader Mining Strategy Continues

The failure of the Uruguay project does not mean Tether has abandoned Bitcoin mining.

The company continues to pursue mining and energy investments in other markets, including El Salvador and Brazil, while expanding its broader investment portfolio beyond its stablecoin business.

The Uruguay experience therefore appears to be more of a failed regional experiment than an indication that Tether is leaving the mining industry altogether.

Why the Uruguay Project Was Important

Tether's original Uruguay strategy had broader ambitions.

The country was intended to provide a foothold for potential expansion into other South American markets, including countries with significant energy resources.

The collapse therefore represents more than the closure of two mining facilities.

It demonstrates how difficult it can be to scale energy-intensive cryptocurrency infrastructure internationally when electricity contracts, tariffs and operational requirements are not aligned.

Tether's Uruguay Mining Project at a Glance

Metric	Reported Figure
Estimated investment	~$120 million
Mining sites	2
Location	Florida, Uruguay
Estimated investment/site	~$60 million
Project announced	May 2023
Power cutoff	July 25, 2025
Local employees affected	~30 of 38
Uruguay renewable electricity	~98%
Primary dispute	Electricity allocation

Figures are based on reporting from Bitcoin.com, Reuters and related coverage.

The Bigger Lesson for Bitcoin Mining

The Tether-Uruguay episode illustrates a fundamental principle of Bitcoin mining:

Energy availability is not the same as mining profitability.

A successful mining operation requires several factors to align:

Cheap electricity

•  

Reliable power supply

•  

Clear long-term contracts

•  

Efficient mining hardware

•  

Strong Bitcoin economics

•  

Stable infrastructure

If any one of these breaks down, profitability can deteriorate rapidly.

In Uruguay, the renewable-energy advantage was not enough to overcome the disagreement over electricity allocation and the broader economics of the operation.

What This Could Mean for Tether

Despite the setback, the company has several reasons to continue pursuing mining elsewhere.

Tether has been diversifying beyond its core stablecoin operations into areas such as:

• Bitcoin mining
• Energy production
• Artificial intelligence
• Data centers
• Technology
• Other infrastructure investments

The Uruguay experience could therefore provide valuable lessons for future mining expansion—particularly around energy contracts and scalability.

Risks for the Global Mining Industry

The incident also highlights several risks that other Bitcoin miners need to consider.

Electricity Contract Risk

Mining companies can face serious operational problems if agreements do not clearly define how power allocations can change.

Energy Price Risk

Even renewable electricity can become economically unattractive if prices are too high.

Bitcoin Price Risk

A major BTC correction can quickly turn profitable operations into loss-making businesses.

Halving Risk

Reduced block rewards increase pressure on miners to improve efficiency.

Infrastructure Risk

Large mining facilities require reliable grids, cooling systems, networking and physical infrastructure.

What Happens Next?

The Uruguay project is now effectively a case study in the limits of renewable-powered Bitcoin mining.

The broader industry will be watching whether Tether continues expanding mining capacity in countries offering:

• Lower-cost energy
• Greater scalability
• Long-term power contracts
• Renewable generation
• Favorable regulations
• Reliable infrastructure

At the same time, the increasing overlap between Bitcoin mining, AI and data centers could reshape how energy infrastructure is valued.

Final Take

Tether's estimated $120 million Bitcoin mining investment in Uruguay has ended after a dispute with state utility UTE over electricity allocations escalated into unpaid bills, a power cutoff and the eventual shutdown of the company's local operations.

The failure is particularly striking because Uruguay has one of the world's most renewable-heavy electricity systems.

But the episode demonstrates that clean energy alone cannot guarantee profitable Bitcoin mining.

For miners, the critical equation is increasingly about cost, reliability, scalability and contract certainty.

Tether continues to pursue mining and energy investments elsewhere, meaning the Uruguay setback is unlikely to end the company's broader Bitcoin-mining ambitions. Instead, it may serve as an expensive lesson about the realities of operating energy-intensive crypto infrastructure at scale.

In Bitcoin mining, having renewable power is only half the equation. Having the right power contract—and paying the right price—can determine whether millions of dollars in infrastructure survives or goes offline.