AI Data Center Brazil: RT-One Taps Siemens and Hitachi Energy

Introduction

RT-One has engaged Siemens and Hitachi Energy to equip its upcoming AI data center campuses in Brazil and the Americas. These partnerships will deliver advanced modular power systems and high-voltage grid infrastructure. They aim to support initial capacities of 100 MW in Uberlândia and 200 MW in Maringá. The projects target AI, high-performance computing (HPC), cybersecurity and sovereign cloud services. As a result, Brazil can strengthen its position as a global hub for high-density computing and digital sovereignty.

This strategic move aligns with global trends to build sustainable AI facilities near renewable energy sources. It also marks a significant investment in Latin America’s digital infrastructure landscape.

RT-One’s AI Data Center Projects

RT-One is a Brazilian developer focused on large-scale AI data center campuses. In September 2025, the company completed a land purchase near Uberlândia (Minas Gerais) spanning 1 million square meters. The initial phase delivers 100 MW of data center capacity. Total investment for the site is over R$6 billion (about US$1.1 billion). The first modules are due for delivery in 2026, focusing on AI, HPC, cybersecurity and sovereign cloud capabilities.

At the same time, a second campus in Maringá (Paraná) will launch with up to 200 MW of IT load. Each campus is designed for expansion beyond 400 MW, giving RT-One flexibility to scale as demand grows. The company indicates that a third site is under evaluation, subject to regulatory approvals and local grid readiness.

The developer deploys prefabricated modular halls and containerized power units, enabling faster build-out and phased commissioning. This approach reduces upfront risk and allows capacity to match evolving customer needs.

Siemens as Technology Supplier

In November 2025, Siemens and Delta Electronics revealed a modular, prefabricated power solution for data centers. The containerized units integrate switchgear, UPS, batteries and cooling in a single package. They cut deployment time by up to 50%, lower initial CAPEX by 20%, and reduce emissions by 27%. RT-One has tapped Siemens to supply these modular power systems for its two 100 MW facilities in Brazil and the Americas.

Furthermore, Siemens brings a track record in industrial automation, electrification and AI-driven operations. The company plans to launch its Digital Twin Composer platform mid-2026, developed in partnership with NVIDIA and Microsoft. These innovations aim to optimize power flows and predictive maintenance, enhancing uptime and energy efficiency in high-density installations.

Hitachi Energy Partnership

On January 12, 2026, RT-One signed an agreement with Hitachi Energy. The Swiss-based firm will supply high-voltage electrical systems, grid connections and automation for the upcoming data center campuses. These solutions are designed to ensure energy efficiency, reliability and resilience.

Hitachi Energy is a global leader in electrification technology. It employs over 50,000 people across 60 countries and reports revenues near US$16 billion. The company’s systems will integrate with Brazil’s renewable-heavy grid, providing secure connections and smart load management to handle AI-driven peaks.

The automation layer from Hitachi Energy will enable rapid fault detection and real-time voltage regulation. As a result, RT-One can maintain consistent performance even under fluctuating demand profiles.

Brazil’s Renewable Energy Context

Brazil operates on a largely renewable electricity matrix. Hydropower accounts for roughly two-thirds of generation, with wind and solar capacity rising. National forecasts project electricity demand to climb by 3.3% annually through 2035, driven by electrification, AI workloads and data center growth.

With this context, local authorities promote energy efficiency and sustainable infrastructure. Incentives and policy frameworks support green data center development. RT-One is leveraging this environment to build next-generation digital campuses that tap clean power sources.

Aligning with Digital Sovereignty Goals

Data sovereignty has become a priority for governments and enterprises. RT-One designs its campuses to host sovereign cloud services, ensuring data remains within national borders. This setup appeals to public sector clients and regulated industries such as finance and healthcare.

In addition, the centers will support advanced HPC workloads, from climate modelling to genomics research. They will also underpin cybersecurity operations, offering dedicated environments to detect threats and manage critical infrastructure.

By combining local data residency with high-density compute, RT-One contributes to Brazil’s aim of retaining value within its digital ecosystem and reducing reliance on offshore providers.

Market Trends and Global Context

Aggregate global demand for data center capacity is surging. Analysts forecast AI workloads to account for a growing share of energy use. Leading operators are shifting to modular designs that enable phased capital deployment. RT-One’s approach mirrors a broader move toward prefabrication and software-defined infrastructure. This trend supports rapid scale-up and mitigates risks associated with large one-off builds.

Latin America has lagged behind North America and Europe in data center capacity but is catching up. Incentives for renewable integration and sovereign cloud offerings are attracting investment. The RT-One projects could catalyze further regional growth, drawing technology partners and specialized service providers.

Challenges and Mitigation Strategies

Deploying large AI data centers comes with challenges. First, power hunger can stress local grids. A single AI cluster can draw tens of megawatts continuously. Second, tight timelines must be met to capture market windows. Third, sustainability goals require low-carbon operations. RT-One addresses these through modular build phases, renewable grid integration and smart automation from partners.

Hitachi Energy systems include real-time monitoring and fault management, reducing downtime risk. Siemens modules deliver pre-tested power equipment, cutting commissioning schedules. Together, they form a resilient ecosystem that can absorb disruptions and adapt to evolving load profiles.

Regulatory and Policy Considerations

Brazilian regulators have set ambitious targets for renewable energy adoption. The national grid operator regularly auctions capacity, prioritizing green power. Data centers with high efficiency scores often qualify for favorable rates. While specific incentives vary by state, Minas Gerais and Paraná have shown support through streamlined permitting for large-scale projects.

Local governments also emphasize job creation and technology transfer. RT-One projects are expected to engage regional contractors and training programs, fostering skills development in advanced infrastructure and digital operations.

Collateral Impacts

The partnerships generate multiple benefits. First, they enhance grid stability in two key regions. Hitachi Energy systems enable smart load balancing and voltage control. Second, they promote environmental sustainability through modular design and renewable integration. Siemens prefabricated units minimize onsite work and waste. Third, they boost economic development. The Uberlândia project alone represents an infrastructure investment of over US$1.1 billion, supporting hundreds of construction jobs and ongoing operations roles.

Moreover, the campuses will host advanced HPC workloads such as climate simulations and genomics analysis. They will underpin dedicated cybersecurity suites and sovereign cloud stacks. This diversity of services strengthens Brazil’s digital ecosystem and creates new avenues for local innovation.

Furthermore, the ability to add prefabricated halls and power modules with minimal downtime allows RT-One to respond rapidly to customer demands, capturing new market opportunities.

Historical Context

RT-One first announced its Uberlândia land purchase in late 2025. At the same time, Siemens showcased its containerized power solutions in partnership with Delta Electronics. That deal highlighted savings in time, cost and emissions. Meanwhile, Hitachi Energy has supplied high-voltage grids and automation for over a century, with installations in more than 140 countries.

The January 2026 MoU marks the convergence of these players on what could become Latin America’s largest AI data center platform. It follows a broader regional trend in which operators seek to harness Brazil’s renewable resources and policy support for digital infrastructure.

Next Steps

RT-One will complete detailed engineering studies in early 2026. Following land preparation, modular power units will arrive on site by mid-2026. The developer anticipates initial commissioning by year-end. Hitachi Energy substations and grid connections will roll out in parallel. Siemens will support local teams with training on modular system deployment. This phased approach ensures alignment with customer requirements and regulatory milestones.

Future Outlook

RT-One plans to commission the first 100 MW modules in early 2026, followed by Maringá’s up to 200 MW campus. Each site has expansion potential beyond 400 MW. Taken together, these two campuses alone could exceed 800 MW of AI-ready compute capacity. The company indicates that a third site is also under review, subject to grid readiness and regulatory approval.

As demand for AI services grows in Latin America, Siemens and Hitachi Energy are poised to scale their presence. They will refine modular power and high-voltage offerings tailored to regional needs, setting new benchmarks for sustainable data center deployment.

Conclusion

RT-One has strategically partnered with Siemens and Hitachi Energy to address the technical and operational demands of large-scale AI data centers in Brazil. By combining modular prefabricated power solutions and robust grid connections, the developer aims to control costs, accelerate delivery and enhance energy resilience. These efforts align with Brazil’s renewable energy strengths and digital sovereignty goals, positioning the country as a leading destination for high-density computing and AI innovation.