Table 3.  Sensitivity Cases

Case Name

Electric Power Sector Emission Caps

Compliance Date/Other

RPS Requirement

NOx

SO2

CO2

Hg

Hg 20-Ton

CAAA90 standards and NOx SIP Call

CAAA90 cap

None

60% below 1997 level

Meet target by 2008

Current State programs

Hg 5-Ton Recycle

CAAA90 standards and NOx SIP Call

CAAA90 cap

None

90% below 1997 level

Meet target by 2008; assumes technology developed to recycle 90% of activated carbon

Current State programs

Hg MACT 90%

CAAA90 standards and NOx SIP Call

CAAA90 cap

None

90% removal for all plants, no trading system

Meet target by 2008

Current State programs

RPS 10%

CAAA90 standards and NOx SIP Call

CAAA90 cap

None

None

CAAA90

2.5% 2005, 5% 2010, 10% 2020

Integrated Moderate Targets

CAAA90 standards and NOx SIP Call

50% below 1997 level

7% above 1990 level

70% below 1997 level

Start 2002; meet NOx/SO2 targets by 2008; CO2 1990 level by 2008, 7% above 1990 level in 2008-2012;a Hg 2008

2.5% 2005, 5% 2010, 10% 2020

Integrated Cost of Service

75% below 1997 level

75% below 1997 level

7% below 1990 level

90% below 1997 level

Start 2002; meet NOx/SO2 targets by 2008; CO2 1990 level by 2008, 7% below 1990 level in 2008-2012;a Hg 2008; assumes allowances have zero cost basis in cost-of-service regions

Current State programs

Integrated High Gas Price

75% below 1997 level

75% below 1997 level

7% below 1990 level

90% below 1997 level

Start 2002; meet NOx/SO2 targets by 2008; CO2 1990 level by 2008, 7% below 1990 level in 2008- 2012;a Hg 2008; assumes slower improvement in technologies for finding, developing and delivering natural gas.

Current State programs

aThe CO2 emission cap remains at the 1990-7% level from 2012 through 2020.

Notes: CAAA90 cap refers to 8.95 million ton SO2 cap established in Title IV of the Clean Air Act Amendments of 1990 (CAAA90). CAAA90 standards refers to the boiler emission standards for NOx established in Title V of the CAAA90. NOx SIP Call refers to the 19-State summer season cap on NOx emissions to begin in 2004. Integrated refers to combinations of emissions caps and/or an RPS.

Source: See requesting letters in Appendix A for specific cases requested by the Subcommittee.

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