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Source: Nuclear Energy Institute

Comments to EPA: Nuclear Energy Essential for Carbon Compliance

EPA Right in Intent, Wrong on Methodology of Nuclear Energy CO2 Value

WASHINGTON, Dec. 1, 2014 (GLOBE NEWSWIRE) -- The U.S. Environmental Protection Agency's treatment of nuclear energy in its proposed carbon reduction regulations is fundamentally flawed and must be reworked, the Nuclear Energy Institute said in comments filed today with the agency.

The EPA has proposed new regulations under section 111(d) of the Clean Air Act to reduce carbon emissions from existing power plants. Nuclear energy produces about two-thirds of all carbon-free electricity in America—three times more than hydropower and nearly five times more than wind energy—and will be even more important to preserve a balanced energy portfolio that reliably produces electricity with a lower carbon footprint.

EPA's proposed rule (the Clean Power Plan) recognizes the importance of nuclear energy in reducing electric sector carbon emissions and attempts to create an incentive for states to preserve existing nuclear generating capacity. As proposed, however, the rule does not achieve that objective. In addition, the proposed rule creates a significant, inappropriate and inequitable penalty for Georgia, South Carolina and Tennessee, where new reactors are being built.

"State government officials, policymakers, the industry and other stakeholders have told EPA that the nuclear energy-related provisions in the rule must be changed to maintain the benefits Americans receive from these large-scale, carbon-free facilities," said Marvin Fertel, president and chief executive officer at the Nuclear Energy Institute. "The agency must revise its proposal to ensure that states have a sufficient incentive to preserve existing nuclear power plants and to build the new nuclear energy facilities that will be required to achieve meaningful carbon reductions and meet the administration's goal."

EPA's proposed rule incorporates six percent of existing nuclear generating capacity when calculating states' target emission rates. This percentage is based on a U.S. Energy Information Administration forecast that six percent of U.S. nuclear capacity is at risk of premature shutdown. But there is no logical basis to assume that six percent of the nuclear capacity in every state with nuclear power plants is at risk. In fact, the at-risk capacity could be higher in states with competitive electricity markets.

Nuclear plants under construction in Tennessee (Watts Bar 2), Georgia (Vogtle 3-4) and South Carolina (Summer 2-3) will not begin producing electricity until between 2015-2018, yet EPA treats them in the proposed rule as though they are already operating at 90 percent capacity. There is no logical basis to include output from these plants in EPA's rate-setting formula.

Adding potential electricity output from these facilities in the agency's rate-setting formula reduces the state's carbon intensity target, thereby penalizing progressive states that are supporting nuclear plant construction. Although states would be able to receive credit for new nuclear plants—by counting the output from them in their compliance calculations—that credit is effectively nullified by including that output in the rate-setting formula.

For example, South Carolina's carbon intensity target is 22 percent more stringent than it otherwise would be because of EPA's treatment of two reactors under construction at the Summer facility near Columbia, S.C. This is a substantial and unjustified penalty levied on the states for no legitimate purpose. "There is only one justifiable approach to new nuclear generating capacity under construction: Remove it entirely from the target-setting calculation but credit the carbon-free electricity output to compliance," NEI said in its comments.

NEI believes that all carbon-free electricity sources should receive appropriate credit in a carbon-reduction program. While renewable energy, nuclear energy and hydro power receive vastly different treatment in the proposed rule, nuclear energy does not receive appropriate credit.

In revising the rule, NEI recommends that EPA:

  • Replace the "six percent factor" in the proposed rule and consider asking states to demonstrate in their State Plans assurance that they will preserve existing carbon-free generating capacity, particularly nuclear generating capacity. For operating nuclear power plants in regulated states, such assurance already exists because integrated utilities have a reasonable opportunity to recover costs, plus a reasonable return. In competitive states with commercial reactors potentially at risk, this assurance could involve a commitment to policy changes through legislation or regulation, or other market-based mechanisms, or a combination that would create incentives for continued reactor operation.
  • EPA should consider ways to provide at least some compliance value for existing nuclear energy capacity as an additional incentive to states to preserve that capacity. For example, a state could be allowed compliance credit for carbon-free electricity produced above a historical average capacity factor for that state's reactors.
  • Remove nuclear generating capacity under construction from the rate-setting formula, and allow states to include "new" nuclear generating capacity, when it is operating, in their compliance calculations, thereby providing an incentive to expand carbon-free nuclear generating capacity. "New" nuclear capacity should include those plants currently under construction or others that might be built between now and 2030 and beyond; as well as all power uprates and license renewals approved after 2012 at existing nuclear energy facilities.

"Nuclear power plants are unique—and uniquely valuable—among carbon-free sources of electricity," Fertel said. "Policymakers and regulators must enact rules that place clear, unambiguous value on low-carbon baseload generation that meets our 24/7 demand for power. Americans need reliable electricity, and they want clean air. With nuclear energy, they can have both."

All mainstream analyses(1) of this issue show that reducing carbon emissions will require a portfolio of energy options, that nuclear energy must be part of the portfolio, and that major expansion of nuclear energy is essential over the next 10 to 15 years.

(1) International Energy Agency 2013 World Energy Outlook, Intergovernmental Panel on Climate Change Working Group III report, and Energy Information Administration and Environmental Protection Agency analyses of various legislative proposals.

The Nuclear Energy Institute is the nuclear energy industry's policy organization. This news release and additional information about nuclear energy are available at