St. Louis committee delays final vote on data‑center rules after hours of testimony on climate, power and community impacts

A St. Louis Board of Aldermen committee paused final action Tuesday on a major rewrite of city rules for data centers after an extended hearing that paired technical briefings with hours of neighborhood testimony.

Alderwoman Anne Schweitzer, who led the effort, said the ordinance breaks facilities into micro, standard and major categories so the city can match requirements to energy and land‑use impacts. She told the committee that “expanding data center use in the city of St. Louis will already, no matter the size data center, put us in the wrong direction of our sustainability goals,” and asked the sustainability director to put local energy demands into context.

Alicia Russell, the city’s sustainability director, told the committee the local electric territory currently has only about 12% of generation online from wind and solar and still relies heavily on fossil fuels in its integrated resource plan. She drew comparisons to help the committee weigh scale and emissions: “A 30 megawatt data center is the equivalent of maybe 22 or 25,000 homes,” she said, illustrating how one large facility can represent a significant share of community energy use and greenhouse‑gas emissions.

Planning staff and the sponsor said the bill ties regulation to megawatt thresholds because those thresholds correlate with external effects — generator use, backup fuel storage, heat and noise — that require different screening and siting rules. Staff also confirmed the draft includes reporting, screening, limits on generator testing times and an enforcement path for on‑site diesel fuel storage and refueling operations.

The meeting drew lengthy public comment from business groups and neighborhood leaders. Anne Kitlouse, executive director of the Locust Central Business District, thanked the committee for the attention and urged clearer safety protocols, early neighbor engagement and requirements to screen rooftop and ground equipment. “Community members knew nothing about what was being built and what it would mean for them,” she said, urging routine engagement and limits on generator testing and fuel storage.

Business interests urged caution about strict thresholds and renewable requirements. Tim Brinker, senior policy director at Greater St. Louis Incorporated, told the committee the downtown market and project economics could be harmed by rigid proximity caps and set‑asides; he urged changes to the district buffer, setback and renewable targets so projects remain feasible.

Over the course of the hearing the committee approved a package of targeted amendments that clarify definitions of locally bundled and unbundled renewable energy credits (RECs), stage renewable requirements (25% at occupancy, 50% by year five, 100% by year ten with limits on unbundled credits), add independent credentialing for environmental reviews, and strengthen on‑site fuel‑storage containment and screening standards. Planning staff, utility representatives and advocates all participated in drafting several changes.

Despite adopting the edits, the committee postponed final passage to a follow‑up session tomorrow at 3:30 p.m. so staff can resolve how the new rules apply to existing, nonconforming data centers and finalize language negotiated with utilities and community stakeholders.

The committee scheduled the continuation to allow additional stakeholder review and to give planning staff time to reconcile technical details with the amended text.