SPP East Actual and Scheduled Interchange

Minute-resolution SPP East Net Actual Interchange (NAI), Net Scheduled Interchange (NSI), forward NSI, and source-published counterparty breakdown.

Interchange data SPP market

Query with the agent

Native record

event_time

1-minute source, polled every 5 minutes publication cadence

Evidence

Observed market data

Published observations from the named source

Time basis

Point-in-time records

UTC · event_time

Overview

Positive values are net imports. Forward NSI can also be populated on realized rows, so a live forward read must select the nearest event_time after the analysis cutoff rather than the last non-null value.

Query contract

Preserve one canonical row per (event_time) before aggregating.

Analysis rules

Group only after preserving the declared grain: event_time.

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_interchange/query

Schema7

Column

Type

event_timeDateTime64(6, 'UTC')

nsi_mwNullable(Float64)

nai_mwNullable(Float64)

nsi_future_mwNullable(Float64)

counterpartiesNullable(String)

source_urlNullable(String)

ingested_atDateTime64(6, 'UTC')

Sample data

event_time	nsi_mw	nai_mw	nsi_future_mw	counterparties	source_url	ingested_at
2026-09-05 04:09:00.000000	∅	∅	1007.25	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:08:00.000000	∅	∅	1007.25	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:07:00.000000	∅	∅	1007.25	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:06:00.000000	∅	∅	1007.25	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:05:00.000000	∅	∅	1007.25	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:04:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:04:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 04:03:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:03:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 04:02:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:02:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 04:01:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:01:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 04:00:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 04:00:00.000000	∅	∅	1162	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 03:59:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 03:59:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 03:59:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 03:55:41.848120
2026-09-05 03:58:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 03:58:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 03:58:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 03:55:41.848120
2026-09-05 03:57:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198
2026-09-05 03:57:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:00:41.438955
2026-09-05 03:57:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 03:55:41.848120
2026-09-05 03:56:00.000000	∅	∅	1316.75	{"AECI": null, "ALTW": null, "AMRN": null, "BLKW": null, "CLEC": null, "DPC": null, "EDDY": null, "EES": null, "ERCOTE": null, "ERCOTN": null, "GRE": null, "LAMAR": null, "MCWEST": null, "MDU": null, "MEC": null, "NSP": null, "OTP": null, "RCEAST": null, "SCSE": null, "SGE": null, "SIKE": null, "SOUC": null, "SPA": null, "SPC": null, "TVA": null}	https://portal.spp.org/chart-api/interchange-trend/asFile	2026-09-04 04:05:43.049198

Coverage

100.0% complete0 gap days3 days with data

Show coverage history ▾

Coverage: 100.0%Days with data: 3Gaps: 0

2026

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Related interchange data

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