RTD Indicative LMPs

This section describes interfaces used to retrieve RTD Indicative LMPs. This report will provide the final LMP at every settlement point for every interval in a particular RTD Study Period. The request message would use the following message fields:

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

The structure of RTD Indicative LMPs are described by the following diagram:

RTDIndicativeLMPs Structure

RTDIndicativeLMP Structure

The following elements are used to report RTD Indicative LMPs:

RTD Timestamp
Repeated Hour Flag which indicates the extra hour on the DST long day
Interval ID
Interval Ending
Interval Repeated Hour Flag
Settlement Point
Settlement Point Type
LMP

The following is an XML example:

<ns1:RTDIndicativeLMPs xmlns:ns0="http://www.ercot.com/schema/2007-05/nodal/eip/il"
    xmlns:ns1="http://www.ercot.com/schema/2007-06/nodal/ews">
    <ns1:RTDIndicativeLMP>
        <ns1:RTDTimestamp>03/21/2012 16:19:01</ns1:RTDTimestamp>
        <ns1:RepeatedHourFlag>N</ns1:RepeatedHourFlag>
        <ns1:IntervalId>1</ns1:IntervalId>
        <ns1:IntervalEnding>03/21/2012 16:25:00</ns1:IntervalEnding>
        <ns1:IntervalRepeatedHourFlag>N</ns1:IntervalRepeatedHourFlag>
        <ns1:SettlementPoint>STLP_ALL</ns1:SettlementPoint>
        <ns1:SettlementPointType>RN</ns1:SettlementPointType>
        <ns1:LMP>17.73</ns1:LMP>
    </ns1:RTDIndicativeLMP>
</ns1:RTDIndicativeLMPs>