Tether Shuts Down Bitcoin Mining in Uruguay: What Went Wrong?

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Nov 27, 2025

Tether just pulled the plug on its massive Bitcoin mining project in Uruguay after burning through more than $100M. The reason? Electricity prices that made the whole operation bleed cash. But this isn't the end for Tether's mining ambitions – it's just a very expensive lesson...

Financial market analysis from 27/11/2025. Market conditions may have changed since publication.

Picture this: a company pours over a hundred million dollars into building state-of-the-art Bitcoin mining facilities and a renewable energy park, only to walk away less than two years later. That’s exactly what just happened in Uruguay, and the company in question is none other than Tether – the giant behind the world’s largest stablecoin.

It’s a brutal reminder that even the deepest pockets in crypto can’t fight basic economics forever. When electricity becomes the biggest line item on your profit-and-loss sheet, something has to give.

The Rise and Fall of Tether’s Uruguayan Adventure

Back in 2023, everything looked incredibly promising. Tether announced plans to invest up to half a billion dollars in Uruguay. The pitch was simple but ambitious: build multiple data centers, develop a 300-megawatt renewable energy park, and mine Bitcoin using mostly clean energy. For a country eager to attract foreign tech investment and position itself as a green-energy leader, it seemed like a match made in heaven.

Fast-forward to today, and the dream is officially over. Local reports confirm that Tether has informed Uruguay’s Ministry of Labor that it is ceasing all local operations. Thirty out of thirty-eight employees have already received their walking papers. The remaining few are basically there to turn off the lights.

The One Thing That Killed the Project: Energy Prices

Let’s be crystal clear – this wasn’t about regulation, political risk, or even technical problems. It was about the electric bill.

Uruguay has some of the cleanest energy mixes in Latin America, with wind and hydro making up the bulk of generation. That’s the good news. The bad news? Commercial and industrial power tariffs can swing between $60 and $180 per megawatt-hour depending on voltage, time of day, and location. For large-scale Bitcoin mining – an industry that lives and dies by single-digit cost differences – that’s simply not competitive.

To put it in perspective, top-tier mining operations in places like Texas, Kazakhstan (back when it was cheap), or parts of Canada often secure power below $40/MWh, sometimes even in the $20s with the right deals. When your biggest expense is literally double or triple what your competitors pay, the math stops working no matter how efficient your machines are.

“Predictable and competitive tariffs are essential for projects of this magnitude.”

– Part of Tether’s formal warning to Uruguay’s state power company last year

A Timeline of How It All Unraveled

  • 2023: Grand announcement, promises of $500M investment and hundreds of jobs.
  • Late 2023: Construction begins, over $100M already spent.
  • November 2023: First red flags – Tether starts negotiating special rates with UTE (Uruguay’s state utility).
  • 2024: Proposals to migrate to higher-voltage tariffs and revise contracts get rejected.
  • June 2025: Local partner stops paying the electric bill.
  • July 2025: UTE cuts power to two facilities over $5M in unpaid bills.
  • September 2025: Rumors of withdrawal swirl; Tether denies but admits it’s “evaluating options.”
  • November 27, 2025: Official shutdown confirmed.

It’s almost painful to watch in slow motion. A project that was supposed to showcase how crypto and renewable energy could work together instead became a textbook example of why location still matters more than ideology in mining.

What Makes Bitcoin Mining So Sensitive to Energy Costs?

If you’re new to the mining world, you might wonder why a few cents per kilowatt-hour can make or break a multi-million-dollar operation. Let me break it down simply.

Modern Bitcoin mining is a commodity business with razor-thin margins. Once machines are paid for, your only real variable costs are:

  • Electricity (usually 70-80% of total costs)
  • Cooling
  • Maintenance and staff

When Bitcoin’s price is high (like the $91,000+ we’re seeing right now), more expensive operations can still turn a profit. But when difficulty keeps rising and margins compress – which happens relentlessly – every extra dollar per megawatt-hour eats directly into profitability.

Think of it like this: if two miners have identical hardware and one pays half as much for power, the cheaper one can keep mining profitably long after the expensive one has to shut down. Over time, that difference compounds into total market dominance.

Where Is Tether Taking Its Mining Dreams Next?

Here’s the thing – Tether isn’t getting out of Bitcoin mining. They’re just getting smarter about where they do it.

Earlier this year, the company moved its headquarters to El Salvador – a country that literally made Bitcoin legal tender and offers extremely mining-friendly policies. They’ve also signed deals in Brazil for renewable-powered mining and snapped up regional custody platforms to deepen their Latin American footprint.

In my view, this Uruguay fiasco might actually be a blessing in disguise. It forced Tether to confront the harsh reality that “green” isn’t enough if it isn’t also cheap. The future of large-scale mining will belong to jurisdictions that can deliver both – or at least one at a price that makes the other irrelevant.

Lessons for the Entire Crypto Mining Industry

There are some big takeaways here that go way beyond one company’s misadventure.

  • Energy contracts matter more than headlines. A country can have 90% renewable power, but if the tariff structure doesn’t work for miners, it’s irrelevant.
  • Political risk cuts both ways. Sometimes the bigger risk isn’t confiscation – it’s a state utility that simply won’t negotiate.
  • Diversification is king. The smartest mining companies never bet everything on one jurisdiction.
  • Speed beats perfection. Waiting for the “ideal” green mining location can cost more than just pivoting to where the power is actually cheap today.

I’ve followed mining migrations for years, and this feels like the end of an era – the era where people believed renewable bragging rights alone could attract major players. The new era will be brutally pragmatic: cheapest reliable joule wins.

What Happens to the Hardware and Infrastructure?

One question I keep getting: what about all those expensive ASICs and the half-built renewable park?

Most likely scenario? The machines get shipped to friendlier (read: cheaper) jurisdictions. Some reports suggest parts of the infrastructure built with the $50M earmarked for handover will simply be transferred to Uruguay’s national grid. In other words, Uruguay keeps some shiny new power assets, and Tether eats the loss on everything else.

It’s a bitter pill, but not fatal. When you’re sitting on tens of billions in stablecoin reserves, a nine-figure write-off is painful but survivable.

The Bigger Picture for Stablecoins and Mining

Perhaps the most interesting angle is what this says about stablecoin issuers evolving into full-blown crypto conglomerates.

Tether isn’t just a dollar-pegged token anymore. It’s building mining operations, acquiring custody providers, investing in renewable energy, and planting flags across Latin America. Love them or hate them, they’re playing a long game that goes far beyond issuing USDT.

This Uruguay setback? Just a very expensive tuition payment for that education.

Sometimes the best lessons come from the deals that don’t work out. And if history is any guide, Tether will come out of this leaner, meaner, and far more careful about where it plugs in its miners next time.


The lights are going out in Uruguay, but somewhere else – maybe El Salvador, maybe Brazil, maybe a place we haven’t even thought of yet – new rigs are probably already spinning up. In Bitcoin mining, the hash rate never sleeps. It just moves to where the power is cheapest.

Bull markets are born on pessimism, grow on skepticism, mature on optimism, and die on euphoria.
— John Templeton
Author

Steven Soarez passionately shares his financial expertise to help everyone better understand and master investing. Contact us for collaboration opportunities or sponsored article inquiries.

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