What Moves and What Stalls Data Center Deals in Latin America, Explained

Washington Is Courting the Build-Out

The United States launched Pax Silica in December 2025, describing it as a U.S.-led initiative to secure the silicon supply chain “from critical minerals and energy inputs to advanced manufacturing, semiconductors, AI infrastructure, and logistics.” At its second summit, in June 2026, Argentina, Chile, Costa Rica, El Salvador and Panama signed the Pax Silica Declaration. Paraguay signed the companion AI Opportunity Statement, whose signatories commit to “aligning their super intelligence (SI) supply chains with those of the United States and Pax Silica economies”; 54 countries had endorsed it by September 2026. The State Department is seeking up to US$50 million for a pilot with Panama’s ports and customs to credential shipments of semiconductors and AI infrastructure.

The money is starting to follow the diplomacy. On 29 September 2026 the U.S. Trade and Development Agency agreed to fund technical assistance for a hyperscale data center and fiber network in Colombia’s Atlántico department, positioning U.S. firms to supply the technology. On 8 September, Peru’s prime minister and the U.S. ambassador signed a three-year memorandum on AI covering cloud computing, data centers and 5G supply.

Governments from Brazil to Uruguay are laying their own rails: Brazil’s Redata tax regime and a National Data Center Policy bill, approved in committee in June 2026, that would give data centers priority access to transmission in areas with surplus generation; Chile’s national data center plan and its dedicated environmental guide; Argentina’s investment regime adapted for technology, Paraguay’s 50/50 AI computing venture with Taiwan, announced in May 2026; and Uruguay’s state carrier ANTEL, which in August 2026 chose a Canelones site for a US$70 million AI data center for its access to submarine fiber and the electricity grid, with construction due to start in early 2027.

Notice what Washington’s own Colombia study is designed to assess first: “potential site locations, energy capacity, and land cost.” The diplomacy opens the door. Whether a project walks through it is a power question.

The official record shows how they stall. Brazil auctions grid access. Mexico's state utility plans growth around loads waiting on reinforcements. Chile has unlocked data center capacity transformer by transformer. Colombia's regulator is managing a drought. Peru’s gas-fired plants switched to diesel for two weeks when one pipeline stopped. Argentina's largest announced project has not cleared its incentive regime. Paraguay's special tariff for intensive consumers comes with contracts that cannot run past 2027. None of these documents names a data center that was cancelled; what they record is the mechanism by which projects stall before they reach the grid.

Every data center is, physically, a heater. Almost all the power it draws leaves the building as heat, which is why cooling sits at the center of its design. In May 2026 Arizona State University published the first direct measurements of what that heat does next door: downwind of air-cooled hyperscale data centers in the Phoenix area, air temperatures averaged 1.3 to 1.6°F above upwind readings and reached as much as 4°F, detectable up to a third of a mile away. That physics does not stop at a border, and neither do the concerns that follow it: heat, water and power.

In the United States those concerns now stop or delay some deals at the town hall. Data Center Watch, which tracks local opposition there, counted at least 45 projects worth nearly US$68 billion blocked or delayed in the second quarter of 2026 alone, and cities including Denver, Minneapolis and Seattle are weighing municipal restrictions.

In Latin America they are arriving as conditions, and sometimes as legal challenges. Chile’s environmental assessment guide names heat as the servers’ main emission and makes the cooling design, and the water and energy it consumes, central to the review. Brazil’s Redata law (Law 15.504, September 2026) grants its tax break only to data centers that use no more than 0.05 litres of water per kWh, measured annually, and buy all their electricity from renewable or low-emission sources. And on 10 September 2026 Brazil’s federal prosecutors and public defenders sued to stop the Pecém data center in Ceará, already holding its preliminary and installation licences, from starting operation or receiving definitive energization until the Anacé Indigenous people are consulted and a full environmental impact study is done. Those rules and challenges shape how and when a data center gets built. Alongside them, the obstacle that recurs across the official record is the grid connection.

1. Brazil: Grid Access Is Now Auctioned

Decree 12.772 of 5 December 2025 created a National Transmission Access Policy (PNAST). The grid operator, ONS, runs periodic “access seasons,” and where registered demand at a connection point exceeds available capacity, access goes to a competitive process. ONS's rules for the first 2026 season, published 9 June 2026, spell it out: applicants bid a premium in R$/kW, the bids are ranked highest first, and they are firm and irrevocable — a winner pays what it offered. A bidder wins if the remaining capacity covers its full request or the minimum it declared. A bidder that loses can stay in for later rounds of the same season if it opted in, or try again in a later season, with no guarantee there will be room. The decree also stops at the distribution network: it does not apply to distribution utilities.

The regulator’s own decision record shows who keeps a place in line being settled case by case. Pahlavan Ventures, authorized in 2021 to connect its Paulínia data centers to the transmission grid through a 10.48 km, 440 kV line to the Replan substation, asked ANEEL to make the ONS reconsider its revised access opinions for higher contracted demand and keep DC Pahlavan One, Two and Three in the access queue; on 24 August 2026 the board unanimously denied the request and sent the case to its staff for a decision on the merits. In May it had unanimously denied Scala Data Centers’ requests to preserve the access opinions for its Jundiaí campus and its AI City in Eldorado do Sul. Others won: in March, by majority, the board preserved the capacity reservations of Casa dos Ventos’ Data Center Pecém II and Bep’s Salto I and II, and in April it did the same for three Odata projects.

2. Mexico: The State Plans the Grid, and the Load Waits

Since the October 2024 constitutional reform, CFE is a single state company covering generation, transmission, distribution and supply, and the energy ministry, SENER, sets grid planning bindingly. CFE’s 2026–2030 development program names data centers among the drivers of demand growth, and states that the generation it projects for the early years assumes the connection of load centers that were waiting on grid reinforcements to enter service. The industry association MexDC projects the sector will need 1.7 GW by 2031 and says its main challenge is getting power to where it is consumed. The question CFE’s own plan raises is less whether there is power than when the reinforcement reaches the substation, on a schedule set by SENER and CFE.

3. Chile: Permits Are Winnable, Transformers Are the Queue

In Chile, the environmental court sided with the developer: in March 2026 the Second Environmental Court rejected a challenge to Amazon's Huechuraba data center approval and let it stand. In January 2026 the environmental assessment service, SEA, published a dedicated evaluation guide for data center projects under the National Data Center Plan 2024–2030.

The documented constraint is the grid. For Ascenty's Data Center Chile 2, a new 40 MVA, 110/23 kV transformer at the Chacabuco substation had to be approved as an urgent work, because the system coordinator estimated the regular planning process would not deliver it until the end of 2030. In February 2026 the coordinator authorized another 100 MW for the Mega Data Center in Lampa, taking it to 300 MW at the Santa Teresa substation, on condition that a 50 MVA transformer be replaced with a 150 MVA unit and that the project be declared under construction by February 2028, or the authorization lapses. In May 2026 the head of the electricity department at Chile's energy commission, CNE, said grid expansion is not keeping pace with data center demand and leaves the system reactive.

4. Colombia: The Power Itself Is Tight

On 27 August 2026 Colombia’s regulator, CREG, adopted transitional measures to secure supply through El Niño 2026–2027. Its resolution records hydro inflows at 76.5% in June, 78.8% in July and 71.4% in August so far, below 2015–2016, the most critical hydrology on record; the national reservoir below its reference curve since 3 August; growing dependence on thermal plants; and July demand 4.5 GWh a day above the planner’s middle scenario. The planner, UPME, places its first firm-energy deficit signal in September 2026. A data center negotiating a power contract in Colombia now is negotiating with a system its own regulator is managing for scarcity.

5. Peru: One Pipeline From Diesel

Peru’s data center base is still small: 14 facilities in Lima with about 33.35 MW installed, two-thirds of it in three projects in Lurín, chosen for access to medium- and high-voltage power, according to the brokerage Binswanger. Schneider Electric’s regional lead names the constraint: “Los retos principalmente los vemos en el tema energético, no solo desde el punto de vista de generación, sino también en transmisión y distribución eléctrica,” says Luis Santamaría, who leads Schneider Electric’s Cloud & Service Providers segment. The Lurín project that did get built secured its power first: Cirion’s LIM2 announced 20 MW of guaranteed power before opening against an original first-quarter 2025 target; its sales director told Gestión it entered operation in late 2025 and that local demand alone will not fill it.

On 1 March 2026 a gas leak caused a deflagration at a valve station on the Camisea transport system in Cusco. The energy ministry declared an emergency from 1 to 14 March and rationed gas, with homes, businesses and public-transport CNG first in line. The regulator, Osinergmin, confirmed that Camisea-fed power plants were replaced by diesel backup units until supply to generation resumed on 14 March, and refused the pipeline operator extra time to argue force majeure. Lima’s data centers draw on that same grid. The regulator’s own February 2025 reserve study put the generation at stake if Camisea gas is cut at about 3,800 MW, against a system record of 8,342.91 MW, and left that scenario out of its reserve target as too unlikely because a total interruption had never happened. No document reviewed for this piece shows a data center affected in March; the exposure belongs in the diligence anyway.

6. Argentina: Announced Is Not Filed

On 10 October 2025 the government announced Stargate Argentina: a letter of intent between OpenAI and Sur Energy for a data center of up to 500 MW and up to US$25 billion, to be structured under the RIGI incentive regime. RIGI is what makes a project like this pencil out: 30 years of stability on its incentives from the date of adhesion. In February 2026, Decree 105/2026 extended the window to adhere by one year from 8 July 2026 and redefined “new product” to fit a technology sector whose products have short lives. Yet the Economy Ministry’s RIGI portal shows no technology project among approvals: its approved-investment schedule covers electricity, oil and gas, mining, steel and ports. Until a data center is approved, RIGI’s stability guarantee does not apply to it.

7. Paraguay: The Intensive-Consumer Tariff Has an Expiry Date

Paraguay's utility, ANDE, sells to intensive consumers under a special tariff group whose contracts “no podrá exceder al 31 de diciembre de 2027.” Contract terms may be reconsidered if the operator declares its computing is not for generating cryptocurrency or tokens and holds a CONATEL internet-access and data-transmission licence, which the technology ministry can verify. Undeclared intensive use is fined on the billing difference for three to twelve months. A 20-year data center model built on a contract that ends in 2027 is a tariff bet, not a power purchase.

Paraguay has already shown, in another industry, how a promised tariff can break. A presidential decree of 16 January 2026 fixed the long-term power tariff for ATOME’s US$665 million Villeta fertiliser project, and the fixed-price contract built on it was a condition of the project’s first loan disbursement. In June the decree was cancelled and replaced without notice, according to the company. ATOME served notice of a dispute under the UK–Paraguay investment treaty on 17 September and moved on 1 October to terminate its 145 MW contract with ANDE; Paraguay’s Attorney General says no claim has been filed yet. A data center relying on a special tariff would carry similar exposure.

Across the Region: Cheap Power Is Often Stranded Power

Chile's system coordinator reports that zero marginal-cost hours have been structural since 2024, with renewable curtailment on the order of 6,000 GWh a year. Prices stay higher where transmission decouples a node from the rest of the grid. Brazil's ONS projects that if every plant holding a transmission contract comes online, average curtailment will exceed 10% for wind and 20% for solar, before counting local constraints. Much of the cheapest power sits where the grid cannot carry it out.

Start diligence at the substation, not the parcel. In order:

1. Connection point: remaining capacity at the specific bus or substation, and whether it is allocated by queue, by urgent-works approval or by competitive bid.
2. Timeline: when the regular planning process would deliver the works, and whether an expedited path exists.
3. Contract term: whether the power tariff outlasts the financing. A cheap price with a near-dated expiry is a repricing risk.
4. Curtailment exposure: whether “cheap” power is cheap because it is stranded behind a transmission limit.
5. Permits: necessary and sometimes contested, but in the Chilean cases documented here, not where the deal stalled.

Power-ready sites exist, but they are found substation by substation, not country by country.