SCED ORDC Price Adders

Retired — no longer supported

SCED Total Available Reserves and Price Adders Based on ORDC were removed with the RTC+B implementation on 12/05/2025. ERCOT no longer returns this report, and the SCEDPriceAdderORDCs payload is no longer defined in the ERCOT Web Services XSDs.

Replaced by: RT SCED Price Adders (RTSCEDPriceAdders).

This page is retained for reference when interpreting data retrieved before that date. The field tables and XML examples below describe the pre-RTC+B schema and will not validate against the current XSDs.

This section describes interfaces used to retrieve SCED Total Available Reserves and Price Adders Based on ORDC. The request message would use the following message fields:

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

The structure of SCEDPriceAdderORDCs is described by the following diagram:

SCEDPriceAdderORDCs Structure

SCEDPriceAdderORDC Structure

The following is an XML example:

<ns1:SCEDPriceAdderORDCs xmlns:ns0="http://www.ercot.com/schema/2007-05/nodal/eip/il"
    xmlns:ns1="http://www.ercot.com/schema/2007-06/nodal/ews">
    <ns1:SCEDPriceAdderORDC>
        <ns1:BatchID>5612621</ns1:BatchID>
        <ns1:SCEDTimestamp>04/18/2023 16:01:34</ns1:SCEDTimestamp>
        <ns1:RepeatedHourFlag>N</ns1:RepeatedHourFlag>
        <ns1:SystemLambda>1500.0007</ns1:SystemLambda>
        <ns1:PRC>6266.18</ns1:PRC>
        <ns1:RTORPA>0.0</ns1:RTORPA>
        <ns1:RTOFFPA>0.0</ns1:RTOFFPA>
        <ns1:RTOLCAP>18130.98</ns1:RTOLCAP>
        <ns1:RTOFFCAP>4940.0</ns1:RTOFFCAP>
        <ns1:RTOLHSL>41347.11</ns1:RTOLHSL>
        <ns1:RTBP>23872.18</ns1:RTBP>
        <ns1:RTCLRCAP>22.72</ns1:RTCLRCAP>
        <ns1:RTCLRREG>0.0</ns1:RTCLRREG>
        <ns1:RTCLRBP>51.72</ns1:RTCLRBP>
        <ns1:RTCLRLSL>0.02</ns1:RTCLRLSL>
        <ns1:RTCLRNS>30.3</ns1:RTCLRNS>
        <ns1:RTNCLRRRS>713.32</ns1:RTNCLRRRS>
        <ns1:RTOLNSRS>138.0</ns1:RTOLNSRS>
        <ns1:RTCST30HSL>2459.59</ns1:RTCST30HSL>
        <ns1:RTOFFNSHSL>2265.52</ns1:RTOFFNSHSL>
        <ns1:RTRUCCST30HSL>0.0</ns1:RTRUCCST30HSL>
        <ns1:RTORDPA>0.0</ns1:RTORDPA>
        <ns1:RTRRUC>0.0</ns1:RTRRUC>
        <ns1:RTRRMR>0.0</ns1:RTRRMR>
        <ns1:RTDNCLR>3.0</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:RTOLLASL>19127.94</ns1:RTOLLASL>
        <ns1:RTOLHASL>61551.2</ns1:RTOLHASL>
        <ns1:RTNCLRNSCAP>46.59</ns1:RTNCLRNSCAP>
        <ns1:RTNCLRECRS>46.59</ns1:RTNCLRECRS>
    </ns1:SCEDPriceAdderORDC>
</ns1:SCEDPriceAdderORDCs>