Full Breakdown
AI Data Centers Face Heatwave Scrutiny as Power Grids and Water Supplies Strain
7/4/2026, 6:05:55 AM
Heatwave Highlights AI Data Center Strain
A July heat dome lifted East-Coast temperatures above 38 °C, spiking electricity demand for AI data centers. The U.S. is adding thousands of facilities that now consume 4 % of power, expected to rise to 9 % by 2030. About 3,000 centers operate, with Virginia and Texas hosting the most, and 38 % of Americans live within five miles of one.
Resource Pressures
AI centers consume 176 TWh of electricity year—enough for 16 million homes—and 627 million gallons of water. A typical hyperscale site draws 100–300 MW; an AI center can use up to 5 million gallons of water. PJM, which runs grids in 13 states, asked the DOE to require data centers to switch to backup generators within 15 minutes of an emergency alert. Diesel generators emit pollutants that degrade air quality.
Official and Community Responses
Gov. Greg Abbott (Texas) called for a ban on rural data-center construction. Sen. Bernie Sanders (Vermont) and Rep. Alexandria Ocasio-Cortez (New York) urged a moratorium on new facilities. In Lowell, Massachusetts, Markley Group’s AI center faces opposition; 82-year-old resident Eileen Castle warned, “I think about the air quality, the water, what effects it has on the kids in the area.” Rep. Tara Hong noted the district’s low-income, historically marginalized population. A 14-year-old protester shouted, “We just don’t want data centers!” prompting police action. Lowell’s City Council voted 10-0 for a one-year moratorium.
Conflicting Views
Researcher Jonathan Koomey says AI data-center growth is “moderate” and not a national crisis, while utilities report acute, location-specific grid and water stresses. A data center in Corpus Christi, Texas, claims “zero water” usage, contradicting estimates that a single facility can consume water equal to a city of 50 000 residents. Data on water use and diesel emissions remain scarce.
Verbatim Quotes
- “Heatwaves are demonstrating that the current siting and cooling model was designed for average conditions, and average conditions are disappearing with each passing day,” — Arif Gasilov, partner, Gasilov Group
- “They are not run proactively or continuously; they engage only during an actual power disruption to keep critical systems online, plus brief weekly testing of about five minutes per unit, run one generator at a time,” — Jeff Markley, CEO, Markley Group
- “This is not a national crisis. It’s not explosive growth nationally,” — Jonathan Koomey, researcher
- “A heat wave is “almost the worst situation for data center operation,” said Shaolei Ren, a professor at the University of California, Riverside, who has studied AI’s environmental toll.” said Shaolei Ren, a professor at the University of California, Riverside.” — Shaolei Ren, professor, UC Riverside
What’s Next
PJM’s request could trigger mandatory emergency-generator protocols for AI facilities. Texas and Virginia have faced calls for tighter data-center siting oversight. The North American Electric Reliability Corporation has issued guidelines to mitigate “unprecedented challenges” from power consumers. As Lowell’s moratorium nears expiration, community groups plan hearings.
