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Southern Co.

Bring Vogtle Unit 3 online

Not delivered by the deadline

AI-confirmed · human review in progress Independent AI checks agreed on primary SEC or regulator evidence. Records are now being reviewed by hand, starting with those our customers order.

Announced
29 Oct 2020
Due
30 Nov 2021
Checked
2 Oct 2026
  • Deadline
  • Met
  • Late
  • Not met
  • Today

What the company said

“bring Vogtle Units 3 and 4 online by the November 2021 and November 2022 regulatory-approved in-service dates.”

What we found

Evidence strength A What the grades mean

The company failed to bring Vogtle Unit 3 online by the November 2021 deadline, as filings confirm a schedule extension was announced in February 2022.

  • A
    Southern Co. 10-Q filed 2022-04-28 Regulatory filing · published 28 Apr 2022 · retrieved 2 Oct 2026 · kept permanently by the SEC · fingerprint 843f975469fe
    “an incremental extension of one year or more from the seventeenth VCM report estimated in-service dates of November 2021 and November 2022 for Units 3 and 4, respectively. The schedule extension announced in February 2022” ✓ confirmed on the page

Market reaction: the shares moved +0.3% against the S&P 500 over the three sessions around the disclosure (27 Apr 2022 to 2 May 2022). What this measures

Checked 2 Oct 2026.

Commitment DNA

The structured record of this commitment. Fields the company did not state are left blank rather than guessed.

Event type
Facility other
Indicative materiality
Medium rules
Action
Bring
Deliverable
Vogtle Unit 3
In the company’s control
Medium
Specificity
High
Conditional
Yes: regulatory-approved in-service dates
Depends on
Regulatory

How this entry was checked

  1. Commitment recordedThe company's words were matched word for word against the filing.
  2. First checkAn AI model, Gemini (Google), read the company's later filings and recorded the outcome with a quoted passage.
  3. Second check: agreesA different AI model, Claude (Anthropic), re-read the evidence without being told the outcome and reached the same answer.
  4. Third check on a negative finding: agreesBecause a negative finding could harm a company if wrong, a stronger model re-read the evidence fully blind and reached the same answer.

Confirmed. This outcome counts towards the company's Kept Score. How verification works

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Report an error in this entry Reference: KI-C-2020-SO-003829 · Corrections policy

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