aemo_gencon: Generic constraint equations and RHS terms (GENCONDATA)

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Generic constraint equations and RHS terms (GENCONDATA)

Description

Downloads the GENCONDATA table from the most recent MMSDM monthly archive. GENCONDATA contains the equation definitions for every generic constraint active in the NEM: the constraint ID, the type (equality/inequality), a description of what the constraint models (thermal limit, voltage stability, system strength, etc.), and the default RHS value.

Usage

aemo_gencon(constraint_id = NULL, type = NULL)

Arguments

constraint_id	Optional character vector of constraint IDs to filter on. NULL returns all equations.
type	Optional constraint type filter (e.g. "LE" for <=, "GE" for >=, "EQ" for =). NULL returns all types.

Details

Pair this with aemo_constraints() to go from a binding dispatch interval to the underlying network equation. The workflow is: aemo_constraints() tells you which constraint bound and how hard (marginalvalue = shadow price); aemo_gencon() tells you what the constraint is (which elements and why the RHS was set at that level).

Value

An aemo_tbl with columns including genconid (constraint ID), constrainttype, description, genericconstraintrhs (default RHS value). Additional columns from GENCONDATA (effective dates, generic constraint equation weights) will be present when available.

Source

AEMO NEMweb MMSDM archive, GENCONDATA table. AEMO Copyright Permissions Notice.

See Also

aemo_constraints() for the real-time binding constraint shadow prices.

Other dispatch: aemo_bids(), aemo_constraints(), aemo_dispatch_units(), aemo_fcas_enablement(), aemo_interconnector(), aemo_market_notices(), aemo_outages(), aemo_rooftop_pv(), aemo_spd_constraints()

Examples

op <- options(aemo.cache_dir = tempdir())
try({
  # Find equations for the Heywood interconnector thermal limits
  g <- aemo_gencon(constraint_id = c("V::S_NIL_TBSE", "V::S_NIL_FCSPS"))
  head(g)
})
options(op)

aemo documentation built on April 29, 2026, 1:07 a.m.