Who knows what this company does at night when there is not enough power for mining equipment?
Uruguay gets most of it's electricity from hydro, it's an exporter but overall it's a small nation, their production capacity for example is under Iceland and just below Sri Lanka.
With a total capacity of 3.5GW available don't expect tether to move hundreds of MW of machines there, from what they've released till now it's a 40MW plant expected to reach full capacity by 2025, so 10k machines at most, 2exahash, 0.3% of the current hashrate.