DOE studies electric grid ahead of EPA air quality standards

Washington, D.C., December 1, 2011 – In anticipation of forthcoming Environmental Protection Agency proposals for clean air standards, the Department of Energy released a new report examining the potential impact those proposed standards could have on the reliability of our nation’s energy systems.

The report compares compliance deadlines even more stringent than those that are expected to be associated with the Cross-State Air Pollution Rule (CSAPR) and the Mercury and Air Toxics Standards (MATS) to typical timelines for the installation of pollution controls at existing older plants and construction of new generation capacity.

Echoing the results of several other recent reports, the DOE’s review indicated that the new EPA rules will not create resource adequacy issues.

To the extent that any localized reliability issues arise as the power sector adjusts to these rules, flexibility mechanisms in the Clean Air Act exist to ensure that any issues could be fully addressed before electricity delivery would be affected.

The DOE developed and modeled a conservative “stress test” scenario for 2015 that was deliberately constructed to be more stringent than the new EPA rules. Assuming prompt action by regulators and generators, the timelines associated with the construction of new generation capacity and installation of pollution control retrofits would generally be comparable to EPA’s regulatory compliance timelines.

Even in the stringent test case, the overall resources would be adequate, with only the potential need for a small amount of additional new generation capacity – some of which is already under development – to maintain regional planning targets.

With the information currently available, it is clear the overall supply-demand balance for electric power in each region examined would be adequate.

Read the full report here.

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DOE studies electric grid ahead of EPA air quality standards

Washington, D.C., December 1, 2011 – In anticipation of forthcoming Environmental Protection Agency proposals for clean air standards, the Department of Energy released a new report examining the potential impact those proposed standards could have on the reliability of our nation’s energy systems.

The report compares compliance deadlines even more stringent than those that are expected to be associated with the Cross-State Air Pollution Rule (CSAPR) and the Mercury and Air Toxics Standards (MATS) to typical timelines for the installation of pollution controls at existing older plants and construction of new generation capacity.

Echoing the results of several other recent reports, the DOE’s review indicated that the new EPA rules will not create resource adequacy issues.

To the extent that any localized reliability issues arise as the power sector adjusts to these rules, flexibility mechanisms in the Clean Air Act exist to ensure that any issues could be fully addressed before electricity delivery would be affected.

The DOE developed and modeled a conservative “stress test” scenario for 2015 that was deliberately constructed to be more stringent than the new EPA rules. Assuming prompt action by regulators and generators, the timelines associated with the construction of new generation capacity and installation of pollution control retrofits would generally be comparable to EPA’s regulatory compliance timelines.

Even in the stringent test case, the overall resources would be adequate, with only the potential need for a small amount of additional new generation capacity – some of which is already under development – to maintain regional planning targets.

With the information currently available, it is clear the overall supply-demand balance for electric power in each region examined would be adequate.

Read the full report here.