Tether, the issuer of USDT — the largest stablecoin by market capitalization — has pulled out of two Bitcoin mining installations in Uruguay after an escalating electricity supply conflict crippled operations and terminated the $120 million initiative. The collapsed venture allegedly resulted in approximately $120 million in losses for the stablecoin issuer, and state utility UTE disconnected the power supply following unsuccessful contract negotiations and outstanding invoices.

Tether had envisioned using Uruguay as a pilot region and springboard for broader cryptocurrency mining expansion across South America, part of a wider push to diversify beyond its core stablecoin business into energy and mining. Instead, disputes over power supply entitlements left the mining facilities operating without adequate electricity for sustained production, forcing the company to abandon the project.

How the Uruguay Mining Venture Collapsed

Tether established its Uruguay mining venture in 2023, highlighting the country's renewable energy resources — largely hydropower and wind — as well as dependable grid infrastructure, governmental stability, and advantageous commercial regulations. The organization constructed two installations in the Florida department, with individual facilities reportedly requiring an investment of approximately $60 million. Combined, these locations constituted among the corporation's most substantial initial mining commitments throughout South America.

Early operations produced income, but electricity distribution challenges subsequently created substantial operational obstacles for both installations. Tether interpreted its agreement with UTE, Uruguay's state-owned utility, as permitting power allocation increases whenever operational requirements necessitated additional electricity capacity. UTE, by contrast, regarded the stipulated electricity quantity as the ceiling of supply accessible to Microfin, the local entity behind the sites. The distinction carried weight because industrial-scale Bitcoin mining is electricity-intensive, with power typically ranking as its largest operating expense, making contracted supply levels decisive for site economics.

The conflict had intensified by November 2024, according to internal UTE documentation examined by Reuters. Escalating mining requirements subsequently deprived the installations of sufficient electricity for extended periods during certain operational cycles. As a result, the disagreement diminished production capabilities and hindered attempts to maintain both mining locations as commercially viable enterprises.

Failed Negotiations and Power Disconnection

Political transitions subsequently intensified pressure surrounding negotiations between Microfin and Uruguay's government-controlled electricity supplier. A replacement administration assumed control in March 2025 and designated new leadership to UTE. The utility subsequently adopted a more rigid stance throughout deliberations concerning potential modifications to the power distribution contract.

Two months later, Microfin ceased its electricity payment obligations and notified UTE of intentions to cancel the current contracts. Both parties continued attempting to salvage the initiative through a restructured agreement and a memorandum of understanding. Although UTE approved the revised contractual terms, Tether officials failed to appear at the scheduled signing event.

UTE severed electricity connections to the mining installations on July 25, following continued non-payment and the unsigned memorandum. Microfin subsequently notified employment regulators about operational termination plans and workforce reduction intentions. The organization ultimately resolved its outstanding financial obligations with UTE in December, though mining activities remained suspended.

Bitcoin Production Economics Shift Toward Lower-Cost Energy

Tether initially perceived Uruguay as a gateway for comprehensive Bitcoin mining development throughout South America. The corporation deemed the nation appropriate because renewable energy comprises the majority of its electricity production and its infrastructure maintains reliability. The company additionally intended to validate its mining framework there before evaluating expanded operations in Brazil, Paraguay, and Argentina.

Comparatively elevated electricity expenses have undermined Uruguay's competitiveness as a Bitcoin mining destination, and increasing power costs together with declining mining profitability are transforming the Bitcoin production landscape. Mining profitability has additionally encountered constraints since the Bitcoin halving in April 2024 cut the per-block subsidy from 6.25 BTC to 3.125 BTC. Total network computing power has continued climbing since then, intensifying competition and advantaging operators with the lowest electricity costs. Reduced cryptocurrency valuations and ascending power costs have subsequently applied additional strain on mining enterprises globally.

Despite terminating the Uruguay operation, Tether maintains investment activity in mining, energy systems, software platforms, and associated enterprises. The corporation has simultaneously expanded renewable-powered mining endeavors in Brazil and distributed open-source utilities for mining administration. Concurrently, certain mining operators are progressively reallocating infrastructure toward artificial intelligence and high-performance computing applications as Bitcoin profit margins constrict and demand for computing capacity grows.