Statement of Benjamin Longstreth, 

Senior Attorney, Climate and Clean Air Program 

Natural Resources Defense Council 

Public Hearing on EPA Proposed Standards of Performance for Greenhouse 

Gas Emissions from New Electric Generating Units 

February 6, 2014 

Thank you for providing me the opportunity to speak today in support of EPA's proposed 

standards to limit carbon pollution from power plants. On behalf of NRDC's 1.4 million members and 

online activists, I commend EPA for undertaking this most important rulemaking. 

We have an obligation to protect our children, grandchildren, and their children from the harms of 

climate change. in recognition of this imperative, President Obama committed to achieve, by 2020, a 17 

percent reduction in carbon pollution from 2005 levels. Last summer, in the Climate Action Plan, the 

President charted a path toward this 17 percent reduction goal. The first and most important element of 

that Plan is setting standards for the carbon pollution from the power plants that are responsible for forty 

percent of our carbon pollution. 

But in order to reach the 17 percent target, it is critical to not just set standards, but to set 

standards that achieve significant reductions in the level of pollution emitted from new and, even more 

importantly, existing power plants. 

I am going to address the standards EPA has proposed for natura) gas-fired combustion turbines. 

This is an area of the proposed rule that should be significantly strengthened. 

EPA proposes to find that natural gas combined cycle plants are the best system of emission 

reduction for this subcategory. We support this determination. But EPA then fails to properly determine 

the appropriate level of carbon pollution that such plants can meet. 

EPA proposes that for NGCC units above 250 megawatts, the standard should be 1000 lbs CO2 

per M WH. For units below 250 megawatts, EPA proposes 1,100 Ibs CO2 per megawatt hour. 

In selecting these numbers EPA has proposed emission levels that just about every NGCC unit in 

each size class can meet. This is not adequate. After EPA determines that NGCC is the best system of 

emission reduction, EPA must still — as it has for other rules — determine the proper level at which to set 

the standard based on the range of performance achieved by NGCC plants. EPA's practice in other rules 

has been to examine the performance of sources using the identified system of emission reduction and set 

the standard based on what the best plants — typically near the eightieth percentile — can achieve. 

For NGCC plants, there is a significant range in perfonmance. In our comments on the April 

2012 proposed rule, we presented our analysis of the emission levels of NGCC plants. This showed that 

there are many 250 megawatt or larger plants that achieve a net emissions rate below 825 and a good 

number that are below 800. Based on that analysis, we recommended that, for the category of larger 

plants, EPA adopt a standard in the range of 825 to 850 lbs CO2/MW. We are in the process of reviewing 

the data again but thus far we have seen no evidence warranting a weaker standard. There is no reason 

for EPA to set a standard of 1,000 Ibs Co2/MW when so many plants can achieve substantially better 

results. 

We are also evaluating the data for smaller NGCC plants and believe that EPA's proposed 1,100 

pound standard is similarly too lenient. 
I would also like to address the question of whether EPA's standards are based on net electrical 

output — the amount of electricity delivered to the grid — or gross electrical production by the plant. We 

believe it is important that EPA set the standard based on the net electrical output of each plant, meaning 

the amount of pollution per kilowatt of electricity delivered to the grid. EPA has proposed standards 

based on the gross amount of electricity produced by the plant. This approach masks the fact that some 

plants consume significant quantities of electricity on-site. What we are all interested in is the amount of 

useful electricity produced and, in order to allow for an accurate comparison of different plants, EPA 

needs to base its standard on the net electrical output. 

I want to reiterate that EPA should be applauded for issuing this proposal and for the important 

discussions it has undertaken regarding standards for existing power plants. But we do urge EPA, as it 

moves forward, to make sure that it is sets standards for the gas-fired combustion turbine subcategory at 

the level that will achieve the largest carbon pollution reductions possible. 

Thank you. 

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