What the Texas grid is burning right now, the carbon intensity that follows from it, and a live H100-hour priced to include the emissions baked into its electricity. ERCOT publishes every five minutes; we snapshot hourly.
Total = quoted $/GPU-hr + (GPU TDP × grid carbon intensity × social cost of carbon). At 700 W on an ERCOT grid running at 411 gCO₂/kWh, each H100-hour carries about 0.29 kgCO₂e of embedded emissions. The number drops when overnight wind surges, and climbs when gas peakers come online.
| Fuel | gCO₂e / kWh |
|---|---|
| coal | 820 |
| gas | 490 |
| nuclear | 12 |
| wind | 11 |
| solar | 45 |
| hydro | 24 |
| storage | 0 |
| other | 500 |