At a recent town hall, an opposition group circulated a flyer claiming that a new data center would consume as much water as a new 1,000-home residential subdivision. This claim is designed to induce panic about local aquifers.
Let’s look at the actual math.
The Flawed Comparison
A typical 1,000-home subdivision in Texas uses a tremendous amount of water, primarily for:
- Lawn Irrigation (which accounts for up to 60% of summer residential water use)
- Indoor Plumbing (showers, toilets, washing machines for 3,000+ residents)
- Swimming Pools
According to municipal data, a 1,000-home subdivision consumes approximately 300,000 to 400,000 gallons per day (GPD) on average, spiking much higher in the summer.
The Reality of Modern Data Centers
The opposition assumes that all data centers use older, open-loop cooling towers that evaporate millions of gallons of water. This is outdated technology.
Modern hyperscale data centers being built today utilize closed-loop cooling systems.
- In a closed-loop system, water is circulated to cool the servers, then chilled and recirculated.
- It is not constantly evaporated and replaced.
- Many modern facilities are entirely waterless (using air cooling) or use reclaimed wastewater.
A modern, highly efficient data center using closed-loop cooling requires only a fraction of the water of a residential subdivision—often just what is needed for the on-site staff of 30-50 people and occasional system top-offs.
The Verdict: FALSE
The claim that a modern data center uses as much water as a 1,000-home subdivision is demonstrably false. In fact, a single 18-hole golf course typically uses more water (around 312,000 GPD) than a modern hyperscale data center campus.
When evaluating the impact of new infrastructure, we must base our decisions on the actual engineering specifications of the proposed facility, not outdated statistics designed to scare the community.