RT SCED Price Adders

Info

New interface with RTC+B Implementation

This section describes interfaces used to retrieve Real-Time Price Adders by SCED Interval. The request message would use the following message fields:

Message Element	Value
Header/Verb	get
Header/Noun	RTSCEDPriceAdders
Header/Source	Market participant ID
Header/UserID	ID of user
Request/StartTime	Start time of interest
Request/EndTime	End time of interest

The corresponding response messages would use the following message fields:

Message Element	Value
Header/Verb	reply
Header/Noun	RTSCEDPriceAdders
Header/Source	ERCOT
Reply/ReplyCode	Reply code, success=OK, error=ERROR or FATAL
Reply/Error	Error message, if error encountered
Payload/	RTSCEDPriceAdders

The structure of RTSCEDPriceAdders is described by the following diagram:

The following is an XML example:

<ns1:RTSCEDPriceAdders xmlns:ns1="http://www.ercot.com/schema/2007-06/nodal/ews">
      <ns1:RTSCEDPriceAdder>                                            
         <ns1:SCEDTimestamp>09/04/2025 17:00:40</ns1:SCEDTimestamp>     
         <ns1:RepeatedHourFlag>N</ns1:RepeatedHourFlag>                 
         <ns1:SystemLambda>25.2194</ns1:SystemLambda>                   
         <ns1:RTRDPA>0.0</ns1:RTRDPA>                                   
         <ns1:RTRDPARUS>0.0</ns1:RTRDPARUS>                             
         <ns1:RTRDPARDS>0.0</ns1:RTRDPARDS>                             
         <ns1:RTRDPARRS>0.0</ns1:RTRDPARRS>                             
         <ns1:RTRDPAECRS>0.0</ns1:RTRDPAECRS>                           
         <ns1:RTRDPANSS>0.0</ns1:RTRDPANSS>                             
         <ns1:RTRRUC>1503.39</ns1:RTRRUC>                               
         <ns1:RTRRMR>0.0</ns1:RTRRMR>                                   
         <ns1:RTDNCLR>0.0</ns1:RTDNCLR>                                 
         <ns1:RTDERS>0.0</ns1:RTDERS>                                   
         <ns1:RTDCTIEIMPORT>0.0</ns1:RTDCTIEIMPORT>                     
         <ns1:RTDCTIEEXPORT>0.0</ns1:RTDCTIEEXPORT>                     
         <ns1:RTBLTIMPORT>0.0</ns1:RTBLTIMPORT>                         
         <ns1:RTBLTEXPORT>0.0</ns1:RTBLTEXPORT>                         
         <ns1:RTOLLSL>21181.99</ns1:RTOLLSL>                            
         <ns1:RTOLHSL>100731.16</ns1:RTOLHSL>                           
      </ns1:RTSCEDPriceAdder>
</ns1:RTSCEDPriceAdders>