{"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","discovered_at":"2026-05-14T18:02:44.690106+00:00","generated_at":"2026-05-17T05:25:02.910356+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Vistra signs 20-year PPA for 1,200 MW carbon-free power from Comanche Peak","bullets":["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)."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-221774","json":"https://secwatch.observer/filing/0001193125-25-221774.json","markdown":"https://secwatch.observer/filing/0001193125-25-221774.md","text":"https://secwatch.observer/filing/0001193125-25-221774.txt","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"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T05:25:02.910356+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}