DAM Ancillary Service Offer Insufficiency Report

Retired — no longer supported

The DAM Ancillary Service Offer Insufficiency Report was removed with the RTC+B implementation on 12/05/2025. ERCOT no longer returns this report, and the InsufficiencyReports payload is no longer defined in the ERCOT Web Services XSDs.

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 the DAM AS Offer Insufficiency Report. DAM AS Offer Insufficiency Report reflects available and insufficient AS Offer quantities. The request message would use the following message fields:

Message Element	Value
Header/Verb	get
Header/Noun	InsufficiencyReport
Header/Source	Market participant ID
Header/UserID	ID of user
Request/TradingDate	Trading date

The corresponding response messages would use the following message fields:

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

The payload structure is described by the following diagram:

InsufficiencyReports Structure

InsufficiencyReport Structure

The following is an XML example for DAM AS Offer Insufficiency Report:

<InsufficiencyReports
    xsi:schemaLocation="http://www.ercot.com/schema/2007-06/nodal/ews    ErcotAwards.xsd"
    xmlns="http://www.ercot.com/schema/2007-06/nodal/ews"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <InsufficiencyReport>
        <qse>ERCOT</qse>
        <startTime>2008-01-01T10:00:00-06:00</startTime>
        <endTime>2008-01-01T12:00:00-06:00</endTime>
        <tradingDate>2008-01-01</tradingDate>
        <marketType>DAM</marketType>
        <asType>Reg-Up</asType>
        <asOfferQuantity>3.1</asOfferQuantity>
        <asInsufficiencyQuantity>3.1</asInsufficiencyQuantity>
        <asInsufficiencyStatus>3.1</asInsufficiencyStatus>
        <clearedAS>String</clearedAS>
        <draftAlert>String</draftAlert>
    </InsufficiencyReport>
</InsufficiencyReports>