aemo_spd_constraints: SPD constraint tables (regions, interconnectors, connection...

In aemo: Download Australian Energy Market Operator Data

SPD constraint tables (regions, interconnectors, connection points)

Description

Returns the SPD (Security and Projected Dispatch) constraint coefficient tables from MMSDM. Where GENCONDATA gives the high-level equation definition, the SPD tables give the per-term coefficients used in the NEMDE dispatch optimisation:

Usage

aemo_spd_constraints(
  table = c("region", "interconnector", "connection_point"),
  constraint_id = NULL
)

Arguments

table	One of "region" (default), "interconnector", or "connection_point".
constraint_id	Optional character vector of GENCONID/CONSTRAINTID values.

Details

• "region": SPDREGIONCONSTRAINT (regional-demand and regional-generation terms).

• "interconnector": SPDINTERCONNECTORCONSTRAINT (interconnector-flow terms).

• "connection_point": SPDCONNECTIONPOINTCONSTRAINT (per-DUID connection-point terms).

These tables are required for NEM dispatch replication (the nempy Python package, Gorman, Bruce & MacGill 2022, JOSS 7(70) 3596, doi:10.21105/joss.03596, uses all three when reproducing NEMDE solves).

Value

An aemo_tbl with columns from the requested SPD table. GENCONID and FACTOR (the coefficient) are always present; other columns vary by table.

Source

AEMO NEMweb MMSDM archive, SPDREGIONCONSTRAINT / SPDINTERCONNECTORCONSTRAINT / SPDCONNECTIONPOINTCONSTRAINT.

See Also

aemo_gencon() for the equation-level metadata, aemo_constraints() for the 5-min binding-constraint feed with shadow prices.

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

Examples

op <- options(aemo.cache_dir = tempdir())
try({
  s <- aemo_spd_constraints(table = "interconnector")
  head(s)
})
options(op)

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