Price Corrected RTM MCPCs by SCED Interval

This section describes interfaces used to retrieve RTM price corrections for MCPCs by SCED Interval. The request message would use the following message fields:

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

The structure of RTMPriceCorrectionMCPCSCEDs are described by the following diagram:

RTMPriceCorrectionMCPCSCEDs Structure

RTMPriceCorrectionMCPCSCED Structure

The following elements are used:

  • SCED Timestamp
  • AS Type
  • MCPC Original
  • MCPC Corrected
  • Price Correction Time
  • Repeated Hour Flag

The following is an XML example:

<ns1:RTMPriceCorrectionMCPCSCEDs xmlns:ns0="http://www.ercot.com/schema/2007-05/nodal/eip/il" xmlns:ns1="http://www.ercot.com/schema/2007-06/nodal/ews">
               <ns1:RTMPriceCorrectionMCPCSCED>
                  <ns1:SCEDTimestamp>06/01/2025 14:05:18</ns1:SCEDTimestamp>
                  <ns1:ASType>ECRS</ns1:ASType>
                  <ns1:MCPCOriginal>147.85</ns1:MCPCOriginal>
                  <ns1:MCPCCorrected>145.2</ns1:MCPCCorrected>
                  <ns1:PriceCorrectionTime>06/01/2025 16:00:00</ns1:PriceCorrectionTime>
                  <ns1:RepeatedHourFlag>N</ns1:RepeatedHourFlag>
               </ns1:RTMPriceCorrectionMCPCSCED>
               <ns1:RTMPriceCorrectionMCPCSCED>
                  <ns1:SCEDTimestamp>06/01/2025 14:05:18</ns1:SCEDTimestamp>
                  <ns1:ASType>NSPIN</ns1:ASType>
                  <ns1:MCPCOriginal>139.79</ns1:MCPCOriginal>
                  <ns1:MCPCCorrected>140.06</ns1:MCPCCorrected>
                  <ns1:PriceCorrectionTime>06/01/2025 16:00:00</ns1:PriceCorrectionTime>
                  <ns1:RepeatedHourFlag>N</ns1:RepeatedHourFlag>
               </ns1:RTMPriceCorrectionMCPCSCED>
</ns1:RTMPriceCorrectionMCPCSCEDs>