| Combustion Turbine Retirement Option |
| RET1 |
Early Retirement |
| |
| Combined Cycle Retirement Option |
| RET2 |
Early Retirement |
| |
| Oil/Gas Steam Retrofit Options |
| RET3 |
Early Retirement |
| OC01 |
Oil/Gas Steam to Combined Cycle Repowering (for units smaller than 175 MW) |
| OC02 |
Oil/Gas Steam to Combined Cycle Repowering (for units larger than 175 MW and smaller than 375 MW) |
| OC03 |
Oil/Gas Steam to Combined Cycle Repowering (for units larger than 375 MW and smaller than 750 MW) |
| OC04 |
Oil/Gas Steam to Combined Cycle Repowering (for units larger than 750 MW) |
| SCO1 |
SCR |
| SCN1 |
SNCR |
| |
| Coal Steam Retrofit Options |
| RET4 |
Early Retirement |
| CC01 |
Coal Steam to Combined Cycle Repowering (for units smaller than 175 MW) |
| CC02 |
Coal Steam to Combined Cycle Repowering (for units larger than 175 MW and smaller than 375 MW) |
| CC03 |
Coal Steam to Combined Cycle Repowering (for units larger than 375 MW and smaller than 750 MW) |
| CC04 |
Coal Steam to Combined Cycle Repowering (for units larger than 750 MW) |
| CG01 |
Coal Steam to IGCC Repowering (for units smaller than 175 MW) |
| CG02 |
Coal Steam to IGCC Repowering (for units larger than 175 MW and smaller than 375 MW) |
| CG03 |
Coal Steam to IGCC Repowering (for units larger than 375 MW and smaller than 750 MW) |
| CG04 |
Coal Steam to IGCC Repowering (for units larger than 750 MW) |
| SCR1 |
SCR (for units that do not possess an existing post combustion NOx control option) |
| SCR2 |
SCR (for units with an existing SNCR) |
| SNR1 |
SNCR (for Non Cyclone and Non FBC Boilers) |
| SNC1 |
SNCR (for Cyclone Boilers) |
| SNF1 |
SNCR (for FBC Units) |
| LSF1 |
LSFO Scrubber |
| LSD1 |
LSD Scrubber |
| RSD1 |
LSD Scrubber (LSD1) + SCR (SCR1) |
| RSD2 |
LSD Scrubber (LSD1) + SCR (SCR2) |
| NSD1 |
LSD Scrubber (LSD1) + SNCR (SNR1) |
| CSD1 |
LSD Scrubber (LSD1) + SNCR (SNC1) |
| RSO1 |
LSFO Scrubber (LSF1) + SCR (SCR1) |
| RSO2 |
LSFO Scrubber (LSF1) + SCR (SCR2) |
| NSO1 |
LSFO Scrubber (LSF1) + SNCR (SNR1) |
| CSO1 |
LSFO Scrubber (LSF1) + SNCR (SNC1) |
| HG01 |
ACI (Low Sulfur Bituminous) |
| HG02 |
ACI (Low Sulfur Bituminous) |
| HG07 |
ACI (Low Sulfur Bituminous) |
| HG08 |
ACI (Low Sulfur Bituminous) |
| HG03 |
ACI (High Sulfur Bituminous) |
| HG04 |
ACI (High Sulfur Bituminous) |
| HG05 |
ACI (High Sulfur Bituminous) |
| HG06 |
ACI (High Sulfur Bituminous) |
| HG11 |
ACI (Sub-Bituminous) |
| HG12 |
ACI (Sub-Bituminous) |
| HG09 |
ACI (Lignite) |
| HG10 |
ACI (Lignite) |
| |
| Nuclear Plant Retirement Option |
| RET5 |
Early Retirement |
