Price Corrected RTM MCPCs by SPPs

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

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

The structure of RTMPriceCorrectionMCPCSPPs are described by the following diagram:

RTMPriceCorrectMCPCSPPs

RTMPriceCorrectMCPCSPP

The following elements are used:

  • Delivery Date
  • Delivery Hour
  • Delivery Interval
  • AS Type
  • MCPC Original
  • MCPC Corrected
  • Price Correction Time
  • Repeated Hour Flag

The following is an XML example:

<ns1:RTMPriceCorrectionMCPCSPPs xmlns:ns0="http://www.ercot.com/schema/2007-05/nodal/eip/il" xmlns:ns1="http://www.ercot.com/schema/2007-06/nodal/ews">
               <ns1:RTMPriceCorrectionMCPCSPP>
                  <ns1:DeliveryDate>06/01/2025</ns1:DeliveryDate>
                  <ns1:DeliveryHour>15.0</ns1:DeliveryHour>
                  <ns1:DeliveryInterval>1.0</ns1:DeliveryInterval>
                  <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:RTMPriceCorrectionMCPCSPP>
               <ns1:RTMPriceCorrectionMCPCSPP>
                  <ns1:DeliveryDate>06/01/2025</ns1:DeliveryDate>
                  <ns1:DeliveryHour>15.0</ns1:DeliveryHour>
                  <ns1:DeliveryInterval>1.0</ns1:DeliveryInterval>
                  <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:RTMPriceCorrectionMCPCSPP>
</ns1:RTMPriceCorrectionMCPCSPPs>