Rockdale County adopts rezoning and strict conditions for battery storage project at 2002 Rockbridge Road

The Rockdale County Board of Commissioners voted during its April 14 meeting to adopt a rezoning ordinance that changes 2002 Rockbridge Road NW from R‑1 (single‑family residential) to M‑2 (general industrial), attaching 21 conditions intended to limit community impacts from a proposed Treaty Oaks battery energy storage system (BESS).

The ordinance, approved on second reading, requires a minimum 100‑foot undisturbed natural buffer adjacent to residentially zoned properties, submission of a traffic impact analysis and provision of deceleration lanes as determined by the Georgia Department of Transportation and the county Department of Transportation, underground utilities, and a decommissioning plan to be approved before land‑disturbance permits are issued. The county set an 85‑foot maximum structure height and detailed landscape and screening standards to reduce visibility from nearby homes.

The conditions impose operational safeguards for generators and battery systems. The county requires generators to be located and screened to minimize noise impacts, prefers low‑emissions Tier 4 natural gas generators, and limits nuisance noise measured at the property line to no more than 55 decibels at any time. The ordinance also restricts generator testing to two hours per week between 10 a.m. and 5 p.m. on weekdays and requires a public noise‑testing schedule with at least 48 hours' notice for changes. Applicants must submit third‑party environmental noise impact assessments and additional post‑construction noise verification within three months of operations starting; the county may require up to four independent sound studies per calendar year.

Stormwater protections are explicit: applicants must comply with the Georgia Stormwater Management Manual and the county's stormwater design criteria, prepare a stormwater pollution prevention plan identifying pollutant sources and controls for cooling systems, fuel and chemical storage, and maintain records for five years. Fuel and oil containing equipment must have secondary containment capable of holding at least 110% of the largest tank volume, and spill prevention and response plans must be kept on site.

The county also included equipment testing and third‑party certification requirements. Plan reviewers must be provided UL test reports and full‑scale testing consistent with UL 9540A standards for thermal runaway evaluation, a hazard mitigation analysis prepared by a Georgia‑registered architect or professional engineer, and documentation of operational safety manuals and remote monitoring capabilities.

During discussion, Rockdale County Fire Rescue Chief Robinson described extensive planning between county departments and the applicant and said, "I do not have a concern that the fire department can handle an incident at this site." He noted specialized tactics for hazardous vapors and confirmed county apparatus and hydrant access requirements would be enforced. Planning staff confirmed that only about seven acres of the site would be developed while the remainder would remain undisturbed under condition 21.

A commissioner who spoke after the vote emphasized community outreach and the need to balance growth with public services and school capacity; another commissioner described the project as a significant private investment for Rockdale County and urged rigorous oversight.

The motion to approve the second reading and adopt the ordinance carried by voice vote. The rezoning is paired with a future land use map amendment adopted the same day to change the property’s designation from Medium Density Residential to Light Industrial. Further site‑specific permits and technical reviews will be required before construction may proceed.

What happens next: applicants must submit detailed plan sets and third‑party reports named in the conditions; plan reviews and permits are required before land disturbance or building permits are issued.