Supercritical and ultra-supercritical coal plants run steam above its critical point (~221 bar, ~374°C and higher), raising efficiency and cutting fuel use and CO₂ per MWh versus older subcritical units.
Higher steam temperature and pressure extract more work per unit of fuel, so they emit less CO₂ per MWh than subcritical plants.
Explore the data: power plants by technology · HRSG map · nuclear map. Removable insulation for hot equipment like HRSGs: Inzonex.
