The site from above
Power and the grid
Getting on the grid
Who supplies what, what it costs, and what is still not public.
- Oct. 30, 2025Utility MW on record270 MW. State agency · Oct. 2025
On-site generation on file
- Generator maker and model: Caterpillar 3516E State agency · Oct. 2025
- Air permit (backup) Georgia EPD (Air Protection Branch) · Application #29820 · applied · July 24, 2025Permit application narrative dated Oct. 30, 2025 covering the ATL11 facility, including two 1,750 kW back-of-house diesel emergency generators submitted as App. 29750 (June 13, 2025) and acknowledged by a No Permit Letter on… State agency · Oct. 2025
Permits checklist
3 granted · 4 checked, nothing on file
Approvals a campus like this normally needs (including an air permit for backup generators), and what we found.
- ✓Zoning approval GrantedCity of South Fulton Planning Commission · July 16, 2025: Rezoning approved by City of South Fulton Planning Commission. News report · July 2025
- ✓Air permit GrantedGeorgia EPD · Sept. 26, 2024: Air permit issued by Georgia EPD. State agency · Oct. 2025
- ✓Development of Regional Impact review GrantedAtlanta Regional Commission · March 30, 2025: Development of Regional Impact review issued by Atlanta Regional Commission. State agency · March 2025
- –Checked, nothing on file: Site plan, Building permit, Water and wetlands permits, Utility and grid approval
Money on record
What happened, and what is due
- Sept. 26, 2024Permits Air permit issued by Georgia EPD. State agency · Oct. 2025
- March 30, 2025Permits Development of Regional Impact review issued by Atlanta Regional Commission. State agency · March 2025
- July 16, 2025Permits Rezoning approved by City of South Fulton Planning Commission. News report · July 2025
Satellite captures by quarter
Since Sept. 2025: 4 satellite captures.
Owners, partners and builders
- EdgeConneX, developer
- TA Realty, landowner
- Microsoft, owner
Open questions
- Signed electric service agreement and delivery date.
35 records from 9 documents
Drawn from news reports, state agency records, satellite captures and company statements, each kept with its date and source. The bar shows documents by type.
Every quote behind this page
Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.
Power (11)
- Utility service: 270 MW“The data center will require a maximum demand of 270 MW for all three buildings”State agency · Oct. 2025 · grade A
- Role of the on-site plant: backup“These emergency generators are needed to operate the facility at full functionality during outages in commercial power”State agency · Oct. 2025 · grade A
- On-site power technology: 126 identical 3,000 kW diesel-powered Caterpillar 3516E engine-generator sets with SCR (EG001-EG126), max 90 running in an outage with 36 for redundancy/misfires, plus two 1,750 kW back-of-house“with a total of 126 identical 3,000 kW dieselpowered Caterpillar (CAT) 3516E engines and generators sets (Source Codes: EG001 through EG126) to provide emergency backup power when needed”State agency · Oct. 2025 · grade A
- Generator maker and model: Caterpillar 3516E“126 identical 3,000 kW dieselpowered Caterpillar (CAT) 3516E engines and generators sets”State agency · Oct. 2025 · grade A
- Announced: July 16, 2024“announce today the joint development of a 324MW hyperscale data center campus in Atlanta, GA”Company · July 2024 · grade A
- Project description: 1,902,000 sq ft data center in three buildings plus an on-site electrical substation on 59 acres, Stonewall Tell Road south of South Fulton Parkway, City of South Fulton, GA (ARC DRI 4342)“construct a data center with a total of 1,902,000 SF of space in three buildings along with an electrical substation and supporting facilities”State agency · March 2025 · grade B
- Power status: no utility named, no MW stated and no service agreement in any public source through Oct 20, 2026; only a proposed on-site substation in the DRI site plan“along with an electrical substation and supporting facilities”State agency · March 2025 · grade B
- TA Realty separately filed for its Red Oak ATL03 campus at 7170 Red Oak Road, Union City (outside the Stonewall Tell corridor); corridor context only, not part of this campus.“TA Realty has filed an application with the Georgia Department of Community Affairs to build a data center campus at 7170 Red Oak Road in Union City, Fulton County”News report · Oct. 2026 · grade C
- Stated campus size: 324 MW“The project is reportedly set to total 324MW across 2.1 million sq ft (195,096 sqm)”News report · Sept. 2026 · grade C
- The Stonewall Tell queue row is a corridor, not one campus; (2) Microsoft ATL50 at 5235 Stonewall Tell Road, two three-story buildings totalling 910,000 sq ft on an 88-acre parcel, DRI filed September 2026, site set to l“Each building will span three stories, with the site set to launch in 2032”News report · Sept. 2026 · grade C
- Project status: Under construction, well advanced. Three buildings (ATL11, ATL12, ATL13) are permitted under a Georgia EPD air permit issued Sept. 26, 2024 naming Burr Computer Environments as operator; Sentinel-2 shows two“Construction is set to commence later this year, with the first phase of the data center campus expected to be operational by 2026”News report · July 2024 · grade C
Money and contracts (3)
- land purchase: Campus land sale, ~63 acres, Stonewall Tell Road north of South Fulton Parkway 318500000 USD“The site, along Stonewall Tell Road just north of South Fulton Parkway, sold for $318.5 million - equating to around $5 million per acre”News report · July 2024 · grade C
- economic development incentives: Incentive package over 10 years 75000000 USD“Last month, the Development Authority of Fulton County approved $75 million in incentives over a 10-year period for EdgeConneX”News report · July 2024 · grade C
- ConnectCRE reports the EdgeConneX campus will cost roughly $1.8 billion across three phases, completion by 2029, with the first phase a 612,000 sq ft building.“The development will eventually measure about 2.1 million square feet and cost roughly $1.8 billion”News report · July 2024 · grade C
Permits and government (5)
- air permit (backup): issued“Burr Computer Environments, Inc. operates Edgeconnex ATL11, LLC (formerly ATL11) under Air Permit No. 7374-121-0977-S-01-0, issued on September 26, 2024”State agency · Oct. 2025 · grade A
- air permit (backup): applied“The facility submitted App. 29750, dated June 13, 2025, for the installation and operation of two 1,750 kW backofhouse (BOH) dieselfired emergency generators”State agency · Oct. 2025 · grade A
- Development of Regional Impact review: final report issued (review completed)“Name of Proposal: Stonewall Tell Data Center DRI 4342”State agency · March 2025 · grade B
- Developer: RSC Investment Management (Stan Conway); TA Digital also represented at the Jul 2025 rezoning hearing“an attorney representing RSC Investment Management and TA Digital”News report · July 2025 · grade C
- rezoning (city-initiated) and related permits: recommended approval with conditions“recommended approval for a city-initiated rezoning and related permits to allow a data center near Stonewall Tell Road”News report · July 2025 · grade C
Site and other (5)
- Campus name: EdgeConneX ATL11 / ATL12 / ATL13 (Stonewall Tell, Union City)“The facility is a collection of data centers located on Stonewall Tell Road in Union City, Fulton County”State agency · Oct. 2025 · grade A
- Building count: 3“The facility consists of three main buildings (ATL11, ATL12, and ATL13)”State agency · Oct. 2025 · grade A
- County code: 13121“Location: Union City, GA (Fulton County)”State agency · Oct. 2025 · grade A
- Street address: 4810 Stonewall Tell Road, Union City, GA“The company is also said to be developing in Union City on the north side of South Fulton Parkway at 4810 Stonewall Tell Road in partnership with EdgeConneX”News report · Sept. 2026 · grade C
- Site acreage: 63 acres“Property records from BizJournal show an affiliate of Virginia-based EdgeConneX acquired nearly 63 acres in Union City in early July”News report · July 2024 · grade C
Imagery and records: Satellite imagery: Sentinel-2 (ESA Copernicus).