Requires a minimum 100-foot landscape buffer between an energy industrial use and adjacent nonmanufacturing-zoned land, including residential, commercial, school, and public institutional uses.

Requires an 8-foot-tall berm when an energy industrial use is adjacent to a residential subdivision.

Requires a minimum 100-foot landscape buffer along any public roadway.

Requires landscape buffers to be used exclusively for dense landscaping and prohibits using them for stormwater detention, roads, walking trails, surface parking, or similar improvements.

Requires a minimum 500-foot separation between the nearest data-center building or structure and the nearest residential or commercial structure.

Limits data centers located within 1,500 feet of a residential structure to a maximum height of 70 feet, including rooftop mechanical equipment.

Requires City Council approval for rooftop-mounted HVAC or other mechanical equipment.

Requires every data-center application to include an initial noise study during Planned Unit Development review and a final noise study during permitting review.

Requires the initial noise study to include baseline measurements and predictive modeling for phased and full buildout to demonstrate compliance with Yorkville's noise limits.

Requires the final noise study to use actual sound-level measurements from the specific equipment planned for the project, collected under nationally recognized standards, rather than interpolated, extrapolated, or otherwise calculated levels.

Requires data-center developers to include a noise-mitigation plan in the final noise study, including measures to keep operational noise within local limits and account for tonal-equipment penalties.

Requires major mechanical equipment, including generators, chillers, and HVAC units, to be fully enclosed or screened by solid barriers; approved rooftop equipment must be enclosed in sound-dampening penthouses or screened with acoustic barriers as needed.

Requires backup generators and condensers, whenever possible, to be placed on the side of the facility farthest from residential structures.

Requires an applicant to submit a noise impact assessment report identifying the assessment method, noise-generating equipment, noise-control measures, and confirmation of compliance with the City's noise ordinance.

Requires annual noise monitoring by the City's sound engineering consultant for three years after construction completion, unless continuous noise-monitoring devices are installed at the start of construction and reports are provided throughout the development's life.

Limits operational testing of emergency backup generators to 11 a.m. through 5 p.m. on weekdays that are not holidays.

Prohibits data centers from using, generating, storing, or deploying nuclear energy as a power source within the City, including nuclear reactors and small modular reactors.

Requires phased construction that minimizes impacts on residential structures by prioritizing initial development farthest from existing residences.

Prohibits chain-link or barbed-wire fencing along public-facing edges and properties adjacent to residential land uses, requiring security-style aluminum, steel, wrought-iron, or similar fencing.

Requires lighting and photometric plans to be submitted with the application and to comply with Section 1057 on outside lighting.

Requires a construction Traffic Management Plan that includes a communication strategy and an on-site point of contact.

Requires battery storage systems to be at least 50 feet from any adjacent structure and readily accessible to the Bristol Kendall Fire Protection District for firefighting.

Requires an Emergency Operations Plan to be approved by the City and the Bristol Kendall Fire Protection District before a building permit is issued.

Requires the Emergency Operations Plan to address fire suppression, hazardous-material spills, evacuation, incident communications, battery-storage locations, emergency contacts, public information, and participation in KenCom text or siren alert systems.

Requires fire and police training sessions, drills, or walkthroughs before an occupancy permit is issued.

Requires enhanced building-code measures, such as advanced early fire detection in server rooms, fire-resistive construction beyond code minimums on neighborhood-facing walls, or additional hazardous-material safeguards.

Requires compliance with National Fire Protection Association 855.

Requires data-center appearance standards to comply with Section 1058.4.

Allows data centers located within 1,500 feet of a residential structure to reach a maximum height of 70 feet, including rooftop mechanical equipment.

Permits rooftop-mounted HVAC and other mechanical equipment when approved by the City Council.

Allows the initial noise study to use generic or manufacturer-provided cooling-equipment data rather than measurements of the project’s actual equipment.

Allows data center developers to satisfy ongoing noise-compliance verification either through annual City consultant monitoring for three years after construction or through continuous monitoring devices installed at the start of construction.

Allows emergency backup generators to be operationally tested on weekdays between 11 a.m. and 5 p.m., excluding holidays.

Allows development to proceed under a phased construction plan, provided initial construction is prioritized at the greatest distance from existing residential structures.