{"schemaVersion":1,"slug":"microgrid-renewable-priority-allocator","name":"Microgrid renewable-priority allocator","kind":"symbol","abbreviation":"MRA","aliases":["Microgrid active-power dispatch controls","microgrids Microgrid active-power dispatch controls","microgrids","Microgrids","Renewable availability and load","Priority-based dispatch allocation"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Applies the selected resource priority when allocating a feasible active-power target.","description":["Applies the selected resource priority when allocating a feasible active-power target. Active-power dispatch allocates the electrical work performed by the microgrid resources. A total site target, a resource power limit and the actual measured contribution are different quantities that must be connected clearly in the diagram.","In a microgrid with solar generation, a battery and generators, the controller can allocate an import/export target among the available resources while reserving the power needed for operating disturbances. For this reference, the drawing identifies “Renewable availability and load” at the input and “Priority-based dispatch allocation” at the output. Priority remains subject to electrical operating limits.","Identify the measurement boundary, power sign convention, resource limits and target priority. An original control block does not supply dispatch settings, a financial operating policy or proof of grid-code compliance. 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: Renewable availability and load. Identify its source device or document and the state represented on the drawing.","Follow the named output: Priority-based dispatch allocation. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Priority remains subject to electrical operating limits.","Identify the measurement boundary, power sign convention, resource limits and target priority. An original control block does not supply dispatch settings, a financial operating policy or proof of grid-code compliance."],"drawingChecklist":["Label the source and connection reference for renewable availability and load.","Identify the destination and defined state of priority-based dispatch allocation.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Priority remains subject to electrical operating limits."],"distinction":"Priority remains subject to electrical operating limits. 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":"Renewable availability and load"},{"label":"Output / connection","value":"Priority-based dispatch allocation"},{"label":"Lookup label","value":"MRA is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-mg-power","relevance":"Public technical context for microgrid active-power dispatch controls. Active and reactive power, generation, load control, operating reserves and system supervision. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["power-plant-controller","point-of-common-coupling","microgrid-generator-minimum-load-restraint"],"artwork":"pi26-microgrid-renewable-priority-allocator","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-active","input":"Renewable availability and load","output":"Priority-based dispatch allocation"},"plainEnglish":{"title":"What this block does","introduction":"Applies the selected resource priority when allocating a feasible active-power target.","example":"In a microgrid with solar generation, a battery and generators, the controller can allocate an import/export target among the available resources while reserving the power needed for operating disturbances. For this reference, the drawing identifies “Renewable availability and load” at the input and “Priority-based dispatch allocation” at the output. Priority remains subject to electrical operating limits.","drawings":"Start at the named input: Renewable availability and load. Identify its source device or document and the state represented on the drawing. Follow the named output: Priority-based dispatch allocation. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Renewable availability and load"},{"name":"Output","meaning":"Priority-based dispatch allocation"},{"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":["Renewable availability and load","MRA","Priority-based dispatch allocation"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Microgrid control systems","url":"https://selinc.com/services/microgrids-power-management/microgrid-control-systems/"}],"profileId":"power-installation-microgrid-active"},"url":"https://eloragrid.ai/symbols/microgrid-renewable-priority-allocator","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-renewable-priority-allocator.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-mg-power","publisher":"SEL","title":"Microgrid control systems","url":"https://selinc.com/services/microgrids-power-management/microgrid-control-systems/","scope":"Active and reactive power, generation, load control, operating reserves and system supervision.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid active-power dispatch controls. Active and reactive power, generation, load control, operating reserves and system supervision. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}