RT Price Adder ORDC
Retired — no longer supported
Real-Time Reserve Prices Based on ORDC were removed with the RTC+B
implementation on 12/05/2025. ERCOT no longer returns this report, and
the RTPriceAdderORDCs payload is no longer defined in the ERCOT Web
Services XSDs.
Replaced by: RT 15-Minute Price Adders
(RT15MinPriceAdders).
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 Real-Time Reserve Prices Based on ORDC for 15-minute Settlement Interval. The request message would use the following message fields:
| Message Element | Value |
|---|---|
| Header/Verb | get |
| Header/Noun | RT15minORDCReservePrices |
| 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 | RT15minORDCReservePrices |
| Header/Source | ERCOT |
| Reply/ReplyCode | Reply code, success=OK, error=ERROR or FATAL |
| Reply/Error | Error message, if error encountered |
| Payload/ | RTPriceAdderORDCs |
The structure of RTPriceAddersORDCs is described by the following diagram:


The following elements are used to report RT Price Adder ORDC:
-
DeliveryDate
-
DeliveryHour
-
DeliveryInterval
-
RTRSVPOR
-
RTRSVPOFF
-
RTRDP
-
DSTFlag
The following is an XML example:
<ns1:RTPriceAdderORDCs xmlns:ns0="http://www.ercot.com/schema/2007-05/nodal/eip/il"
xmlns:ns1="http://www.ercot.com/schema/2007-06/nodal/ews">
<ns1:RTPriceAdderORDC>
<ns1:DeliveryDate>08/14/2014</ns1:DeliveryDate>
<ns1:DeliveryHour>9</ns1:DeliveryHour>
<ns1:DeliveryInterval>4</ns1:DeliveryInterval>
<ns1:RTRSVPOR>0.0</ns1:RTRSVPOR>
<ns1:RTRSVPOFF>0.0</ns1:RTRSVPOFF>
<ns1:RTRDP>0.0</ns1:RTRDP>
<ns1:DSTFlag>N</ns1:DSTFlag>
</ns1:RTPriceAdderORDC>
</ns1:RTPriceAdderORDCs>