EPD issued a further notice on October 23, 2026 proposing a synthetic minor permit for the same Ellenwood data center project.
IssueFranklin Countyunder consideration
Georgia EPD recommends air permit for Ellenwood data center's backup generators
The draft permit sets nitrogen oxide and other emission limits for diesel emergency generators at a Clayton County data center project, and drew objection from the Sierra Club during public comment.
Latest
October 23, 2026: Synthetic minor permit for TADG - ATL02 / Ellenwood data center
What happens next
No next step has been documented.
At a glance
What this means now
The story
Georgia's Environmental Protection Division drafted an air quality permit for diesel-fired emergency generators at a data center project by TADG (ATL02) in Ellenwood, Clayton County. The draft set a facility-wide notification threshold of 99 tons of nitrogen oxide emissions per rolling 12-month period, a monthly threshold of 8.25 tons, and limits on generator run hours, including up to 200 hours per year of operation and 100 hours per year for maintenance and testing.
Sources30104 draft
A public comment period on the draft permit ended May 1, 2026, with comments submitted by the Sierra Club.
Sources30104 nar
On April 30, 2026, EPD's Air Protection Branch recommended that Permit No. 7375-063-0154-S-01-0 be issued for construction and operation of the diesel-fired emergency generators, with a facility-wide limit of 99 tons per year of nitrogen oxide and a 100-hour-per-year limit for maintenance and readiness testing.
Sources30104 nar
EPD issued a further notice on October 23, 2026 proposing a synthetic minor permit for the same Ellenwood data center project.
SourcesPA0926-4 (1)
Scheduled
What is on the calendar
Dated steps the official record has already set. They move into the timeline below once they happen.
Appeared on agendaproposedDraft permit condition setting 12-month rolling NOx emission notification threshold of 99 tons for emergency generators
exceeds 99 tons for the emergency generator s
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Draft permit condition setting 12-month rolling NOx emission notification threshold of 99 tons for emergency generators
exceeds 99 tons for the emergency generator s
Appeared on agendaproposedAir Quality Permit for TADG – ATL02/Ellenwood data center emergency standby generators
Construction and operation of a data center consisting of emergency standby stationary generators.
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Air Quality Permit for TADG – ATL02/Ellenwood data center emergency standby generators
Construction and operation of a data center consisting of emergency standby stationary generators.
Appeared on agendaproposedDraft permit condition setting monthly NOx emission notification threshold of 8.25 tons for emergency generators
monthly total combined NOx emissions for the emergency generators exceeds 8.25 tons
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Draft permit condition setting monthly NOx emission notification threshold of 8.25 tons for emergency generators
monthly total combined NOx emissions for the emergency generators exceeds 8.25 tons
Appeared on agendaproposedSynthetic minor permit for TADG - ATL02 / Ellenwood data center
Construct and operate an advanced technology ecosystem data center.
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Synthetic minor permit for TADG - ATL02 / Ellenwood data center
Construct and operate an advanced technology ecosystem data center.
What happened
How this issue got here
Open any step for its supporting record. A proposal remains labeled as proposed until later evidence establishes an outcome.
DiscusseddiscussedPublic comment period on draft air permit for TADG – ATL02/Ellenwood emergency generators
The Public Advisory period
ended on May 1, 2026, with comments received from Sierra Club.
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Public comment period on draft air permit for TADG – ATL02/Ellenwood emergency generators
The Public Advisory period ended on May 1, 2026, with comments received from Sierra Club.
Appeared on agendaproposedAir permit application for TADG – ATL02 data center diesel emergency generators in Ellenwood, Clayton County
I recommend that Permit No. 7375-063-0154-S-01-0 be issued to TADG – ATL02 / Ellenwood
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Air permit application for TADG – ATL02 data center diesel emergency generators in Ellenwood, Clayton County
I recommend that Permit No. 7375-063-0154-S-01-0 be issued to TADG – ATL02 / Ellenwood
Appeared on agendaproposedAir quality permit for diesel-fired emergency generators at TADG – ATL02 data center, Ellenwood (Clayton County)
I recommend that Permit No. 7375-063-0154-S-01-0 be issued to TADG – ATL02 / Ellenwood for the
construction and operation of diesel-fired emergency generators
+
Air quality permit for diesel-fired emergency generators at TADG – ATL02 data center, Ellenwood (Clayton County)
I recommend that Permit No. 7375-063-0154-S-01-0 be issued to TADG – ATL02 / Ellenwood for the construction and operation of diesel-fired emergency generators
Research the record