FCAS enablement volumes by generator unit

Returns the MW enabled for each of the ten Frequency Control Ancillary Services (FCAS) per DUID per 5-minute dispatch interval from DISPATCHLOAD. This is the quantity side of the FCAS market: how much each unit was enabled (dispatched) to provide each service, as distinct from the price returned by aemo_fcas().

Usage

aemo_fcas_enablement(
  duid = NULL,
  start,
  end,
  service = NULL,
  intervention = FALSE
)

Source

AEMO NEMweb DISPATCHIS_Reports, DISPATCHLOAD table.

Arguments

duid

Optional character vector of DUIDs. NULL returns all units. See aemo_units() for the full DUID registry.

start, end

Window (inclusive), character or POSIXct.

service

Optional character vector of service names, e.g. c("raise6sec", "lowerreg"). Case-insensitive. NULL returns all ten services.

intervention

Logical. Default FALSE.

Value

An aemo_tbl with columns settlementdate, duid, and one column per FCAS service (raise1secmw, lower1secmw, raise6secmw, lower6secmw, raise60secmw, lower60secmw, raise5minmw, lower5minmw, raiseregmw, lowerregmw). Values are MW; zero means the unit was not enabled for that service.

Details

Ten services are active since 9 October 2023 when Very Fast (RAISE1SEC / LOWER1SEC) commenced. Before that date only eight services are present; the raise1secmw / lower1secmw columns will be NA for intervals before that date.

See also

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

Examples

# \donttest{
op <- options(aemo.cache_dir = tempdir())
try({
  now <- Sys.time()
  e <- aemo_fcas_enablement(start = now - 3600, end = now)
  head(e)
})
#> Warning: Cache integrity check failed for 0e2951cf921a0e85.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 8fad02e9e2699fb3.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 47f036577fb550b4.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 4ad2b1b8db18195b.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 6bdd24bd99175af0.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 00c60f8b0a5bd8bc.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for b50cf9bd42706203.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for acf10574eb3eb6e7.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 7e812257f3b1b363.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 8f4aee7951bdaa05.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 3b75629ed92a8a7d.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 622574dedd5c3c53.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> Warning: Cache integrity check failed for 857f4e1cbdbb56f0.zip; re-downloading.
#> ℹ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> ✔ Downloading <http://nemweb.com.au/Reports/CURRENT/DispatchIS_Reports/PUBLIC_D…
#> 
#> # aemo_tbl: AEMO FCAS enablement volumes (DISPATCHLOAD)
#> # Source:   http://nemweb.com.au
#> # Licence:  AEMO Copyright Permissions Notice
#> # Retrieved: 2026-08-23 17:36 UTC 
#> # Rows: 6  Cols: 1
#> 
#>        settlementdate
#> 1 2026-08-24 02:40:00
#> 2 2026-08-24 02:45:00
#> 3 2026-08-24 02:50:00
#> 4 2026-08-24 02:55:00
#> 5 2026-08-24 03:00:00
#> 6 2026-08-24 03:05:00
options(op)
# }