TECHNOLOGY · ANALYSIS
In Texas, data center pollution will depend on electricity choices
A Houston Advanced Research Center report, covered by The Verge, models a possible sharp rise in pollution linked to data centers in Texas. The results depend on which projects are actually built and how they are supplied with electricity.
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Data center expansion could severely worsen air quality in Texas, according to a Houston Advanced Research Center report covered by The Verge. The finding describes a conditional scenario: all planned projects would connect to the electricity grid and use the anticipated generation mix.
In that case, fine particulate emissions from the electricity sector would more than triple. Emissions of nitrogen oxides, which contribute to smog formation, would increase by 136%. Carbon dioxide emissions would rise by 90% compared with 2025. These projections concern the electricity sector in the scenario studied; they are not a measurement of current emissions from data centers alone.
The report explores different levels of energy demand. Some projects remain speculative and could be abandoned. The choice of electricity sources also substantially changes the results: combining grid power with on-site renewable generation could reduce nitrogen oxide emissions, while gas engines installed on site could increase them.
The analysis suggests that announced computing capacity is not enough to assess a project’s environmental impact. Its electricity supply and whether it is actually built are decisive. The scenarios studied identify these factors without establishing that the most polluting outcome will occur.