First Building at Project Jupiter Data Center Campus in New Mexico Tops Out

Clayco and Kiewit New Mexico Co. have announced the topping out of the first building at Project Jupiter, a large-scale data center campus in Doña Ana County, New Mexico, developed by Stack Infrastructure and Oracle. The milestone marks the completion of the primary structural framework for the initial 855,000-square-foot (79,432 sqm) facility, with the final structural beam placed atop the building this week. The project broke ground in October 2025, and three additional data center buildings remain to be constructed as part of the broader campus build-out.

The campus, announced last year, will span 1,400 acres and include four data center buildings, micro-grid facilities, natural gas power plants, a battery storage center, and a desalination plant. Oracle will occupy the campus upon completion and will use it to host AI infrastructure for OpenAI. At full build-out, the site could total up to 2.5GW of capacity, though the project has reportedly encountered challenges in securing a natural gas connection. The development underscores the intensifying race among hyperscalers and infrastructure providers to deliver the power and capacity needed to support the rapid expansion of artificial intelligence workloads across the United States.

Ryan McGuire, Clayco's president of construction and compute, said the company is proud to reach this benchmark moment in the construction of Project Jupiter, ultimately helping meet America's rapidly growing demand for sustainable, advanced technology infrastructure. He noted that as the need for advanced technological facilities grows, so does Clayco's commitment to delivering high-quality data center projects that support billions in community investments and the creation of thousands of skilled jobs, while utilizing on-site power generation and sustainable water technologies to minimize impacts to local electric grids and water systems.

Mike Casey, COO of Stack Infrastructure, said reaching this milestone reflects the extraordinary coordination and commitment of the teams bringing Project Jupiter to life, adding that from the outset the focus has been to develop critical digital infrastructure in a way that delivers lasting value for Doña Ana County. He said the project demonstrates how infrastructure at this scale can advance technological innovation while supporting local jobs, strengthening the regional economy, and responsibly managing energy and water resources.

The companies noted that no public drinking water will be used for data center cooling or fuel-cell operations. The site will use non-potable well water, purchased under contract from an existing New Mexico water-rights holder, for the initial one-time fill of its four closed-loop, non-evaporative cooling systems. On-site Bloom Energy fuel cells will power a campus microgrid and will also rely on non-potable water. Tyler Nordquist, SVP of Kiewit New Mexico Co., said projects of this scale are built through trust, collaboration, and an unwavering commitment to safety, and that the partners are focused on delivering quality construction that supports the client's vision and creates lasting value for the community.

Mahesh Thiagarajan, EVP of Oracle Cloud Infrastructure, said the partners are building responsibly by investing in the energy infrastructure needed to protect local ratepayers and grid reliability, using closed-loop cooling systems designed to significantly reduce water consumption, and creating meaningful career opportunities and lasting economic value for Doña Ana County. He said Oracle is pleased to work alongside its partners to build the Project Jupiter data center to meet growing nationwide customer demand for secure, reliable AI infrastructure. The topping out of the first building signals tangible progress on one of the largest AI-focused data center developments under construction in the southwestern United States, as demand for AI compute continues to outpace available capacity in key markets.