Overview
- City council voted 6–1 to deny the proposal with two abstentions, stopping the project planned off Naperville and Warrenville roads on the I‑88 corridor.
- Karis Critical’s last-minute scaled-back plan—about 145,000 square feet with 12 diesel backup generators and a 24‑megawatt IT load—failed to win approval.
- A motion to delay the decision for further study failed 6–3, as most council members said the petitioner had not met the burden to show no harm to public health and safety.
- Residents had cited proximity to neighborhoods, diesel emissions, noise, and potential electric bill impacts, even after earlier revisions that included a power cap and infrastructure cost guarantees.
- The council’s denial overrode an 8–1 Planning and Zoning recommendation, as the developer expressed disappointment and suburbs like Aurora continue broader reviews and moratoria on data centers.