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East / West Area Control Error

Published signed ACE MW by qualified GMT clock and filename-derived SPP/SWPW footprint.

Ancillary Services dataSPP market
Query with the agent
Native record
complete source publication × source row ordinal; preserve BAA
source publication publication cadence
Evidence
Observed market data
Published observations from the named source
Time basis
Point-in-time records
UTC · event_time

Overview

Overlapping rolling snapshots collapse to the newest complete publication per instant and BAA. History accumulates prospectively; annual archive formats are not covered here. Complete views require a matching receipt and mirrored row count; empty results are unknown coverage. Raw sources retain publication history internally.

Query contract

Published signed ACE MW by qualified GMT clock and filename-derived SPP/SWPW footprint. Overlapping rolling snapshots collapse to the newest complete publication per instant and BAA. History accumulates prospectively; annual archive formats are not covered here. Complete views require a matching receipt and mirrored row count; empty results are unknown coverage. Raw sources retain publication history internally.

Analysis rules

  • Keep SPP East and SWPW West separate. Never combine a published Total with its footprint components.
  • Do not sum model rows, publication attempts, repeated forecast vintages or duplicate weekly report entries as physical capacity.

Interpretation

  • Published signed ACE MW by qualified GMT clock and filename-derived SPP/SWPW footprint. Overlapping rolling snapshots collapse to the newest complete publication per instant and BAA. History accumulates prospectively; annual archive formats are not covered here. Complete views require a matching receipt and mirrored row count; empty results are unknown coverage. Raw sources retain publication history internally.
  • Model identities are not authoritative physical asset IDs, coordinates, outage attribution or nodal sensitivities.

Access

Query from your own tools

Use the guarded HTTP endpoint directly, or connect an MCP client and load the dataset contract with describe_data before calling query_data.

SPP MCP API reference
HTTP endpoint
POST /api/v1/datasets/spp_public_ace/query

Need the full history of this dataset in Snowflake, Databricks or your own storage? Data services delivers it on a schedule.

Schema12

Column
Type
event_timeDateTime64(6, 'UTC')
published_atDateTime64(6, 'UTC')
snapshot_timeDateTime64(6, 'UTC')
snapshot_idString
row_numberInt64
baaString
source_fileString
source_urlString
content_hashString
record_jsonString
ace_mwNullable(Float64)
ingested_atDateTime64(6, 'UTC')

Sample data

event_timepublished_atsnapshot_timesnapshot_idrow_numberbaasource_filesource_urlcontent_hashrecord_jsonace_mwingested_at
2026-10-10 00:49:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899121SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:49:00Z", "Value": "-54.7058"}-54.70582026-10-10 00:50:19.982715
2026-10-10 00:48:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899120SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:48:00Z", "Value": "11.3049"}11.30492026-10-10 00:50:19.982715
2026-10-10 00:47:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899119SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:47:00Z", "Value": "80.9436"}80.94362026-10-10 00:50:19.982715
2026-10-10 00:46:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899118SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:46:00Z", "Value": "180.2314"}180.23142026-10-10 00:50:19.982715
2026-10-10 00:45:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899117SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:45:00Z", "Value": "183.1080"}183.1082026-10-10 00:50:19.982715
2026-10-10 00:44:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899116SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:44:00Z", "Value": "201.6659"}201.66592026-10-10 00:50:19.982715
2026-10-10 00:43:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899115SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:43:00Z", "Value": "142.6595"}142.65952026-10-10 00:50:19.982715
2026-10-10 00:42:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899114SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:42:00Z", "Value": "92.2524"}92.25242026-10-10 00:50:19.982715
2026-10-10 00:41:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899113SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:41:00Z", "Value": "73.3292"}73.32922026-10-10 00:50:19.982715
2026-10-10 00:40:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899112SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:40:00Z", "Value": "-3.2684"}-3.26842026-10-10 00:50:19.982715
2026-10-10 00:39:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899111SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:39:00Z", "Value": "-81.9838"}-81.98382026-10-10 00:50:19.982715
2026-10-10 00:38:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899110SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:38:00Z", "Value": "-92.9616"}-92.96162026-10-10 00:50:19.982715
2026-10-10 00:37:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899109SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:37:00Z", "Value": "-99.0639"}-99.06392026-10-10 00:50:19.982715
2026-10-10 00:36:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899108SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:36:00Z", "Value": "-43.8884"}-43.88842026-10-10 00:50:19.982715
2026-10-10 00:35:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899107SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:35:00Z", "Value": "23.7273"}23.72732026-10-10 00:50:19.982715
2026-10-10 00:34:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899106SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:34:00Z", "Value": "-1.9944"}-1.99442026-10-10 00:50:19.982715
2026-10-10 00:33:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899105SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:33:00Z", "Value": "-83.6669"}-83.66692026-10-10 00:50:19.982715
2026-10-10 00:32:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899104SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:32:00Z", "Value": "-51.6934"}-51.69342026-10-10 00:50:19.982715
2026-10-10 00:31:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899103SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:31:00Z", "Value": "-9.4966"}-9.49662026-10-10 00:50:19.982715
2026-10-10 00:30:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899102SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:30:00Z", "Value": "79.3263"}79.32632026-10-10 00:50:19.982715
2026-10-10 00:29:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899101SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:29:00Z", "Value": "54.4970"}54.4972026-10-10 00:50:19.982715
2026-10-10 00:28:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb73899100SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:28:00Z", "Value": "-15.9723"}-15.97232026-10-10 00:50:19.982715
2026-10-10 00:27:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb7389999SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:27:00Z", "Value": "6.6986"}6.69862026-10-10 00:50:19.982715
2026-10-10 00:26:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb7389998SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:26:00Z", "Value": "33.9256"}33.92562026-10-10 00:50:19.982715
2026-10-10 00:25:00.0000002026-10-10 00:49:19.8710002026-10-10 00:50:19.8585915943832d52e9b0aab571beff84e660005fb17b7525f98041a3e017f82bb7389997SPPOperational_Data/ACE/ACE_SPP.csvhttps://portal.spp.org/0fad1128d06296b428e01ec625a4199a0feb4cf5f706322e58f2051eef03f8f6{"GMTTime": "2026-10-10T00:25:00Z", "Value": "92.4695"}92.46952026-10-10 00:50:19.982715

Coverage

100.0% complete0 gap days2 days with data
Show coverage history
Coverage: 100.0%Days with data: 2Gaps: 0
2026
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