---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-221774"
form_type: "8-K"
ticker: "VST"
cik: "0001692819"
company_name: "Vistra Corp."
filed_at: "2025-09-29T23:59:59+00:00"
generated_at: "2026-05-17T05:25:02.910356+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Vistra signs 20-year PPA for 1,200 MW carbon-free power from Comanche Peak

## Summary
- 20-year PPA with investment-grade customer for 1,200 MW of carbon-free power from Comanche Peak Nuclear Power Plant.
- Power delivery to begin Q4 2027, ramping to full capacity by 2032.
- Expects incremental Adjusted FCF before Growth accretion of ~8-10% if full capacity utilized.
- Customer is a large, investment-grade company (name not disclosed).

## SEC filing metadata
- accession: 0001193125-25-221774
- form_type: 8-K
- ticker: VST
- cik: 0001692819
- company_name: Vistra Corp.
- filed_at: 2025-09-29T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1692819/000119312525221774/0001193125-25-221774-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1692819/000119312525221774/d43667d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-221774
- JSON: https://secwatch.observer/filing/0001193125-25-221774.json
- Plain text: https://secwatch.observer/filing/0001193125-25-221774.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.