Proposal: Affordable Clean Energy (ACE) Rule
On August 21, 2018, the U.S. Environmental Protection Agency proposed the Affordable Clean Energy rule (ACE) which would establish emission guidelines for states to develop plans to address greenhouse gas emissions from existing coal-fired power plants. ACE would replace the 2015 Clean Power Plan, which EPA has proposed to repeal because it exceeded EPA's authority. The Clean Power Plan was stayed by the U.S. Supreme Court and has never gone into effect.
ACE has several components: a determination of the best system of emission reduction for greenhouse gas emissions from coal-fired power plants, a list of “candidate technologies” states can use when developing their plans, a new preliminary applicability test for determining whether a physical or operational change made to a power plant may be a “major modification” triggering New Source Review, and new implementing regulations for emission guidelines under Clean Air Act section 111(d).
- Press Release: EPA Proposes Affordable Clean Energy (ACE) Rule
- Fact Sheets
- Fact Sheet: Proposed Affordable Clean Energy Rule - Overview (pdf)
- Fact Sheet: Proposed ACE Rule - CO2 Emissions Trends (pdf)
- Fact Sheet: Proposed ACE Rule - Costs and Benefits (pdf)
- Fact Sheet: Proposed ACE Rule - Legal Overview (pdf)
- Fact Sheet: Proposed ACE Rule - Permitting Improvements Under New Source Review Program (pdf)
- Fact Sheet: Proposed Affordable Clean Energy Rule - Comparison of ACE and CPP (pdf)
- Federal Register Notice: Affordable Clean Energy rule proposal (pdf) (886 KB)
- Regulatory Impact Analysis: Regulatory Impact Analysis: Affordable Clean Energy rule proposal (pdf)
- Public Hearing
- EPA held a public hearing on the Affordable Clean Energy (ACE) rule proposal on Monday October 1, 2018, from 9:00 a.m.-8:00 p.m. at the Ralph H. Metcalfe Federal Building, 77 West Jackson Boulevard, Chicago, Illinois.
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Read the Federal Register Notice for more details. The preliminary speaker list is posted below.