| American Electric Power (AEP) | 2009 Commercially Significant Constraint Recommendations | Market Guides | Denied | 10/23/2008 | 10/13/2008 | 
        
          | Citigroup Energy, Inc. | Nodal Protocol Revision Request (NPRR) 444, Supplemental Reliability Deployments | Other | Denied | 05/14/2013 | 05/07/2013 | 
        
          | IPR GDF SUEZ Energy Marketing NA (IP-GSEMNA) | 2013 Competitive Constraints | Other | Denied | 09/18/2012 | 09/11/2012 | 
        
          | NRG Texas LLC and Reliant Energy Retail Services LLC | Notice of Appeal of the Technical Advisory Committee's action concerning NPRR784 | Other | Denied | 08/09/2016 | 07/28/2016 | 
        
          | NextEra | PRR 830 | PRR | Denied | 11/17/2009 | 11/06/2009 | 
        
          | Small Public Power Group of Texas | The Small Public Power Group of Texas has provided a Notice of Appeal of the Technical Advisory Committee's action concerning NOGRR149 | Market Guides | Denied | 04/10/2018 | 03/06/2018 | 
        
          | South Texas Electric Cooperative Inc. (STEC) | Holistic Approach to Congestion Irresolvable by SCED | Other | Denied | 12/12/2013 | 10/13/2011 |