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Short Term Photovoltaic Power Forecast

Short-Term Photovoltaic Power Forecast

The purpose of this interface is to provide a query for fetching short-term photovoltaic power forecast (STPPF) for each PVGR and STPPF forecast for all PVGRs. This interface will return the last hour data for the requesting hour-end.

The request message would use the following message fields:

Message Element Value
Header/Verb get
Header/Noun STPPF
Header/Source MARKET PARTICIPANT ID
Header/UserID ID of user
Request/endTime End time of interest
Request/ID

Optional: PVGR identity

If No PVGR provided then STPPF for all PVGRs is returned

The corresponding response messages would use the following message fields:

Message Element Value
Header/Verb reply
Header/Noun STPPF
Header/Source ERCOT
Reply/ReplyCode Reply code, success=OK
Reply/Error Error message, if error encountered
Payload/ STPPF

The following diagram defines the ForecastSolarPayload structure in the STPPF response:

ForecastSolarPayload Structure

The following is an abbreviated XML example of an STPPF response:

<ns1:ForecastSolarPayload xmlns:ns0="http://www.ercot.com/schema/2007-05/nodal/eip/il"
    xmlns:ns1="http://www.ercot.com/schema/2007-06/nodal/ews">
    <ns1:ForecastSet>
        <ns1:Site duns="1234567890000" name="SOLAR1" qseid="QSE1">SITE1</ns1:Site>
        <ns1:Created>2015-12-18T14:00:01-06:00</ns1:Created>
        <ns1:AnalogValue statistic="MEAN" timeStamp="2015-12-18T14:00:00-06:00" type="STPPF"
            units="MW">0.0E0</ns1:AnalogValue>
        <ns1:AnalogValue statistic="MEAN" timeStamp="2015-12-18T15:00:00-06:00" type="STPPF"
            units="MW">0.0E0</ns1:AnalogValue>
    </ns1:ForecastSet>
</ns1:ForecastSolarPayload>