# Hays Energy Facility (Vistra Corp): 1,911,278 tCO2e in 2023

**Score:** 90/100

| Field | Value |
|---|---|
| Facility | Hays Energy Facility |
| Parent company | Vistra Corp |
| Sector | Power plants |
| Address | 1601 FRANCIS HARRIS LN, San Marcos, TX, 78666 |
| NAICS | 221112 |
| Reporting year | 2023 |
| Total tCO2e | 1,911,278 |
| Prior-year tCO2e | 1,428,707 |
| Change | +33.8% |

## Why this score
- Over 1 million tCO2e a year.
- Emissions up 33.8% year over year.
- Parent company on record.

Source: U.S. EPA Greenhouse Gas Reporting Program (GHGRP) via Envirofacts (https://ghgdata.epa.gov/ghgp/service/facilityDetail/2023?id=1001335&ds=E&et=&popup=true). Last refreshed: 2026-11-03T01:39:43.268Z.
From EPA's Greenhouse Gas Reporting Program as published in Envirofacts. Facilities self-report; totals cover direct emissions in CO2-equivalent for the latest published reporting year. Reported emissions are not findings of any violation.