{"schemaVersion":1,"slug":"microgrid-pv-curtailment-confirmation","name":"Microgrid PV curtailment confirmation","kind":"symbol","abbreviation":"MPCC","aliases":["Microgrid renewable-generation interfaces","microgrids Microgrid renewable-generation interfaces","microgrids","Microgrids","Curtailment request and response","Curtailment confirmation"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Checks the declared acceptance or measured effect of an assigned PV power restraint.","description":["Checks the declared acceptance or measured effect of an assigned PV power restraint. Renewable-generation coordination connects variable resource availability, inverter operating limits and the microgrid power target. Available solar or wind power, an issued curtailment request and actual delivered power are different signals.","In a microgrid with solar generation, the controller can restrain inverter output when local load and storage cannot absorb the available power. The resource controller reports its own availability and accepted operating limits. For this reference, the drawing identifies “Curtailment request and response” at the input and “Curtailment confirmation” at the output. Command acceptance and delivered power differ.","Identify the point where power is measured and the system declaring each availability or limit signal. Resource forecasts and controller requests do not guarantee the delivered generation at every instant. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation."],"readingNotes":["Start at the named input: Curtailment request and response. Identify its source device or document and the state represented on the drawing.","Follow the named output: Curtailment confirmation. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Command acceptance and delivered power differ.","Identify the point where power is measured and the system declaring each availability or limit signal. Resource forecasts and controller requests do not guarantee the delivered generation at every instant."],"drawingChecklist":["Label the source and connection reference for curtailment request and response.","Identify the destination and defined state of curtailment confirmation.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Command acceptance and delivered power differ."],"distinction":"Command acceptance and delivered power differ. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.","facts":[{"label":"Representation","value":"Functional block"},{"label":"Installation focus","value":"Microgrids"},{"label":"Input / boundary","value":"Curtailment request and response"},{"label":"Output / connection","value":"Curtailment confirmation"},{"label":"Lookup label","value":"MPCC is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-pv-control","relevance":"Public technical context for microgrid renewable-generation interfaces. Renewable generation dispatch and microgrid source coordination. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["pv-string-inverter","photovoltaic-string-combiner","microgrid-pv-export-restraint-interface"],"artwork":"pi26-microgrid-pv-curtailment-confirmation","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-renewables","input":"Curtailment request and response","output":"Curtailment confirmation"},"plainEnglish":{"title":"What this block does","introduction":"Checks the declared acceptance or measured effect of an assigned PV power restraint.","example":"In a microgrid with solar generation, the controller can restrain inverter output when local load and storage cannot absorb the available power. The resource controller reports its own availability and accepted operating limits. For this reference, the drawing identifies “Curtailment request and response” at the input and “Curtailment confirmation” at the output. Command acceptance and delivered power differ.","drawings":"Start at the named input: Curtailment request and response. Identify its source device or document and the state represented on the drawing. Follow the named output: Curtailment confirmation. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Curtailment request and response"},{"name":"Output","meaning":"Curtailment confirmation"},{"name":"Application reference","meaning":"An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections."}],"diagram":"flow","steps":["Curtailment request and response","MPCC","Curtailment confirmation"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Microgrid processing and control functions","url":"https://productinfo.se.com/esxp_digital_apps_iec/mg/English/BM_ESXP_DG_Microgrid_IEC_0001122076.xml/%24/ESXP_DG_MG_SD_Processing_0001125595"}],"profileId":"power-installation-microgrid-renewables"},"url":"https://eloragrid.ai/symbols/microgrid-pv-curtailment-confirmation","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-pv-curtailment-confirmation.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-pv-control","publisher":"Schneider Electric","title":"Microgrid processing and control functions","url":"https://productinfo.se.com/esxp_digital_apps_iec/mg/English/BM_ESXP_DG_Microgrid_IEC_0001122076.xml/%24/ESXP_DG_MG_SD_Processing_0001125595","scope":"Renewable generation dispatch and microgrid source coordination.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid renewable-generation interfaces. Renewable generation dispatch and microgrid source coordination. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}