Is a Data Center Coming

Georgia

Data centers in Cobb County

We track 4 projects inside Cobb County and 30 more within 25 miles of it. For a distance-specific answer, check your own address.

In Cobb County

Bells Ferry Road Data Center MMM Acquisitions LLC
Approved 108 MW Marietta

A 108 megawatt data center campus at 1751 Bells Ferry Road in Marietta, Cobb County, on 31.4 acres rezoned from retail commercial to light industrial. The plan calls for two buildings (about 213,600 and 133,600 square feet) totaling 347,000 square feet, up to 105 feet tall, with a closed-loop water cooling system and a developer-funded on-site substation exceeding 100 million dollars. The Marietta City Council approved the rezoning unanimously (7-0) on June 17, 2025; residents organized opposition (stopcobbdatacenter.com) over noise, water use, and only an estimated 5 to 20 permanent jobs.

Prime Storage Delk Road Data Center Prime Storage
Approved 18 MW Marietta

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.

DataSite Atlanta datasite
Operating MW not reported

An operating datasite data center site in Cobb County, GA, mapped in OpenStreetMap and the IM3 Open Source Data Center Atlas. About 78,000 square feet of building is mapped.

Digital Realty Atlanta ATL11 Digital Realty
Operating MW not reported

An operating Digital Realty data center site in Cobb County, GA, mapped in OpenStreetMap and the IM3 Open Source Data Center Atlas. About 313,000 square feet of building is mapped.

Within 25 miles of Cobb County

CenturyLink Operator not disclosed
13 mi SEOperatingFulton County, GA
Atlanta ATL13 Digital Realty
13 mi SEOperatingFulton County, GA
Cox Data Center Operator not disclosed
15 mi NEOperatingFulton County, GA
T5 Data Center Operator not disclosed
19 mi NEOperatingFulton County, GA
Hewlett-Packard Operator not disclosed
19 mi NEOperatingFulton County, GA
UPS Data Center Operator not disclosed
23 mi NEOperatingForsyth County, GA

Power bills in Cobb County

Most of the county is served by Georgia Power, with parts on Marietta Power (city owned) or Cobb EMC or GreyStone Power or Acworth municipal (city owned). Marietta and Acworth run their own municipal electric departments. GreyStone Power and Cobb EMC are two separate cooperatives that both serve parts of the county.

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.

Georgia Power and the Georgia PSC Public Interest Advocacy Staff reached a stipulated agreement extending the alternate rate plan first approved in the 2022 rate case, keeping Georgia Power base electricity rates flat through at least 2028. The Georgia Public Service Commission approved the stipulation by vote on July 1, 2025, with a formal order issued July 31, 2025. The freeze applies only to base rates and does not limit separate fuel cost recovery or storm cost recovery charges, both of which can still change a residential bill during the freeze period. Georgia Power has said growth in large load customers such as data centers helped make the freeze possible by spreading fixed costs across a larger customer base.

Alerts for Cobb County

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