Uruguay signs a US$5.7 billion data centre investment with Spain’s Solaria

The agreement covers a large digital-infrastructure campus and a dedicated renewable-energy facility. Solaria would invest US$5.5 billion in data centres and US$200 million in a 350-megawatt solar plant. The government calls the US$5.7 billion plan Uruguay’s largest investment ever.

The first phase would build 200 megawatts of data centres in Canelones. It would also build the solar plant in Florida. A second phase would add 300 megawatts of data centres in San José. Together, the data-centre campus could reach 500 megawatts.

Construction would begin in 2027. Solaria would develop and operate the free zone and connect it to the transmission grid. The campus would initially focus on cloud services and use low-water cooling systems. The opposition is seeking details about financing, jobs and the agreement’s technical and legal basis.

A data-centre campus is a concentrated site containing computer servers, storage equipment, networking systems and supporting infrastructure. Those machines process and store information for services such as cloud computing. Solaria’s proposed campus would initially be geared to cloud services.

Megawatts measure the rate at which the campus can use or require electrical power. This differs from measuring total electricity consumed over time. A higher megawatt figure generally means more computing equipment can run simultaneously, along with cooling and other support systems.

The planned campus could reach 500 megawatts. That is unusually significant for Uruguay because it equals almost one-tenth of the country’s installed power capacity. The project therefore matters not only as a technology investment, but also as a major addition to national electricity demand and grid planning.

The project is enormous relative to Uruguay’s electricity system. Its planned 500 megawatts are equivalent to almost one-tenth of the country’s installed power capacity. That comparison shows why the campus could affect power planning, transmission needs and the balance between generation and demand.

Its financial scale is also striking. Solaria’s plan totals US$5.7 billion, divided between US$5.5 billion for the data centres and US$200 million for the solar plant. The government describes this as the largest investment in Uruguay’s history.

The article does not provide Uruguay’s gross domestic product or a percentage comparison with the national economy. It does report 3,100 expected construction jobs and 1,500 permanent posts. Those figures, plus the project’s electricity demand, make its economic promises and financing capacity politically important.

The planned system combines local generation with grid access. Solaria would develop a 350-megawatt solar plant in Florida to supply the data-centre complex. The data centres would be built in Canelones and San José, so electricity would need to reach those facilities through the wider power network.

Solaria’s filing says the memorandum includes a power-purchase agreement with state utility UTE lasting up to 40 years. A power-purchase agreement sets the terms for buying electricity. The article does not specify how much power UTE would supply or how solar output would be scheduled.

Solaria would also develop and operate the free zone and its connection to the transmission grid. That connection would link the campus with Uruguay’s electricity system. The solar plant would be an important dedicated source, while the UTE agreement and grid connection would support the complex’s overall power arrangement.

A free-trade-zone regime generally allows designated businesses to receive exemptions or simplified treatment for certain taxes, customs procedures or operations. The exact package depends on national law and the project’s approval. The article identifies the regime but does not specify Solaria’s precise concessions.

For Solaria, the arrangement would provide the legal framework for developing and operating the campus as a free zone. Its responsibilities would include the data centres, the solar plant’s project role and the connection to the transmission grid. The campus would initially serve cloud services.

For Uruguay, the regime is meant to support a US$5.7 billion investment and attract a large technology project. The country would also host the construction and permanent jobs described by the government. However, the opposition is demanding explanations about Solaria’s financial capacity, employment figures and the agreement’s supporting documents.

Construction would create a temporary burst of activity across the three planned locations. The government estimates 3,100 construction jobs. Building data centres, a solar plant and a grid connection would also require major infrastructure spending, totaling US$5.7 billion.

Once operating, the campus could support 1,500 permanent posts and provide cloud services. Its maximum planned load of 500 megawatts would create a substantial new demand for electricity. The 350-megawatt solar plant, the UTE power-purchase agreement and the transmission connection are designed to support that demand.

The longer-term effects remain subject to scrutiny. The opposition questions both Solaria’s ability to finance the project and the employment estimates. UTE board member Darío Castiglioni requested the agreement and supporting reports. The project is scheduled to start construction in 2027, but the article does not give an operating date.

Data centres use electricity to run servers, storage systems and networking equipment. These machines process requests, store data and deliver digital services remotely. In this project, the campus would initially be geared to cloud services, so its computing power would support users and businesses connected through those services.

Almost all the electricity consumed by computer equipment becomes heat. Cooling systems remove that heat and keep the machines operating safely. Many cooling designs can use water to carry heat away, but the article says Solaria plans low-water cooling systems. It does not identify the specific technology.

That design choice matters because a very large campus could otherwise place pressure on water supplies as well as electricity networks. The project’s planned 500 megawatts show the scale of its computing and support systems. Its environmental and infrastructure effects will depend on how the cooling, solar generation and grid connection operate in practice.