SpaceX/xAI committed to resuming water treatment infrastructure at Memphis supercomputer campus for Colossus facility expansion.

SpaceXAI's commitment to build a wastewater treatment plant to cool its Colossus supercomputer and data center campus in Memphis, Tennessee is back on—though construction work won't resume for months. According to Memphis Mayor Paul Young, SpaceXAI President Michael Nicolls committed to resuming construction on the recycled wastewater treatment facility no later than Q1 2027, following a recent meeting. "Our engagement will continue until complete," Young posted on X.

Colossus became "the most powerful AI training system" at its launch, per SpaceXAI, and the company doubled the site's capabilities just 92 days later, leveraging 200,000 GPUs from NVIDIA.

SpaceXAI initially broke ground on the $80 million project in October 2025. The facility would repurpose wastewater—greywater—from a Memphis-area sewage treatment plant to help regulate temperature at the Colossus site. Work abruptly stopped months later.

In April 2026, then-named xAI announced it had officially paused the project, stating that the team was prioritizing "other more immediate projects at the site" but that plans for the water plant remained unchanged. CEO Elon Musk affirmed this, adding: "We need to focus on finishing Colossus 2 [the next phase of the overarching Memphis project] and ensuring it is extremely stable, then will build the water recycling plant." At the time, Young pledged to keep pressing xAI leadership until the project moved forward.

The pause coincided with preparations for SpaceX's record-setting $75 billion initial public offering in June, which led to the merger of SpaceX and xAI into the new SpaceXAI brand.

According to the Environmental and Energy Study Institute, large data centers can consume up to 5 million gallons of water daily. The AI data center boom in the United States increasingly collides with water constraints: approximately two-thirds of planned U.S. data centers are located in areas that have experienced drought, raising urgent questions about cooling, permitting, and supporting infrastructure.

Musk has also announced plans to break down, ship, and reassemble a gas-fired power plant to support power generation at the Colossus site, though no further timetable was provided after the initial confirmation in July 2025.

As data center development accelerates, operators are investing in creative energy and water solutions to make their projects both operational and viable, particularly in regions where planned facilities face resistance.