Cobb County, GA

Prime Storage Delk Road Data Center

Prime Storage. Approved. 18 MW.

An 18 megawatt data center proposed to occupy about 21,570 square feet (roughly 22 percent) of an existing 90,000 square foot Prime Storage self-storage building on Powers Ferry Place off Delk Road in Marietta, Cobb County, on a 10.7 acre site facing Interstate 75. The Marietta Planning Commission recommended approval 4-3 in June 2026 and the City Council approved it 5-2 on August 13, 2026, with conditions including an independent sound study, noise monitoring, generator silencing, and a covenant barring Prime Storage from adding data centers at its other Marietta facilities. It is described as serving local law enforcement, medical, emergency and business needs.

Status: Approved
Operator: Prime Storage
Applicant on record: Prime Storage
Location: Powers Ferry Place, off Delk Road near Interstate 75, Marietta, Cobb County, GA
Size: 18 MW, 11 acres, 21,570 sq ft
Cooling: Not reported
Utility: Georgia Power
Last updated: August 13, 2026

Sources

Marietta to hear data center proposal off Delk Road, East Cobb News, 2026-07-02
Marietta City Council approves data center off Delk Road, East Cobb News, 2026-08-13

What it would mean nearby

The cooling design has not been reported. If it uses evaporative cooling, a 18 MW facility would draw roughly 57,000 to 205,000 gallons of water a day, about what 700 households use.

Base rate freeze through 2028 (docket 44280) holds base rates flat from July 2025. Fuel and storm riders are separate and can still move. 2026 fuel and storm cost settlement (docket 44280, 56765) takes about $4.04 a month off a typical bill from June 2026. The December 2025 certification of about 9,885 MW of new generation for data center load came with a promise of at least $8.50 a month of downward pressure on a typical bill in 2029 through 2031, because large customers are meant to carry more of the cost. Consumer groups warned it could instead add around $20 a month if the projected data center demand does not show up.

For a noise estimate and the three distance rings, check your own address.