Massive investments signal rising demand for AI infrastructure
Two of the largest data center investments announced in the U.S. are moving ahead in Arkansas and Mississippi, where AVAIO Digital Partners and Elon Musk-owned xAI plan more than $26 billion in combined development across the neighboring states—projects that rank as the largest economic investments in history for each.
In Arkansas, AVAIO will build a multi‑phase data center campus on a 760‑acre site in Pulaski County, with a $6-billion first phase. The campus, named AVAIO Digital Leo, will feature computing, networking and data‑storage technologies and power infrastructure for cloud and AI applications.
Construction is scheduled to begin in the first quarter of 2026. Entergy Arkansas is contracted to deliver 150 MW of power in June 2027, and AVAIO anticipates that total demand could reach 1 GW as the campus expands. The company said the project will generate thousands of construction jobs and more than 500 permanent operations jobs over the next five years.
AVAIO CEO Mark McComiskey said the site “will be both a major pole of data center capacity and an engine of sustained economic and technological momentum for Arkansas,” adding that full buildout is expected to exceed $21 billion. The company said the campus will incorporate water‑efficient cooling, rainwater recapture, rooftop solar and advanced cooling‑system economization, with natural forest and landscaped buffers around the site.
Gov. Sarah Huckabee Sanders said the project “represents the largest economic investment in Arkansas history and sets the [state] up to become a technology powerhouse that can compete with any state in the nation,” adding that legislation approved last year cut regulatory timelines for new energy projects by more than half and introduced additional incentives aimed at supporting data‑center development.
In Mississippi, xAI has committed more than $20 billion to a new data center in Southaven. Gov. Tate Reeves called it “the largest economic development project in Mississippi’s history» and «an amazing start to what is sure to be another incredible year for economic development» in the state.
The company is retrofitting a building for the facility, which will be known as MACROHARDRR, with the project expected to create hundreds of permanent jobs in DeSoto County. The site is located near xAI’s newly acquired power plant in Southaven and one of its existing data centers. The Mississippi Development Authority approved the project for the state’s Data Center Incentive, providing a sales and use tax exemption on computing equipment.
Musk said xAI is building a third data center in the greater Memphis area, adding that MACROHARDRR “pushes our Colossus training compute to [about] 2GW—by far the most powerful AI system on Earth.” Mississippi’s focus on “speed, certainty and readiness” helped secure the project, said state development agency Executive Director Bill Cork, calling it evidence that the state is prepared for large-scale technology development.
