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

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

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
2026-10-20 05:29:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:28:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:27:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:26:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:25:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:24:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:24:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:23:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:23:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:22:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:22:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:21:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:21:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:20:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:20:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:19:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:19:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:18:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:18:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:17:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:17:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:16:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:16:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940
2026-10-20 05:15:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:26:19.585173
2026-10-20 05:15:00.000000	∅	∅	1002	{"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}	ftp://pubftp.spp.org/Operational_Data/TIE_FLOW/TieFlows_SPP.csv	2026-10-19 05:21:19.230940

Coverage

100.0% complete0 gap days48 days with data

Show coverage history

Coverage: 100.0%Days with data: 48Gaps: 0

2026

gaplessmore

Related interchange data

Related interchange data
Dataset	Description
Monthly SWPW tie-flow archiveSPP · month publication	SPP's Monthly SWPW tie-flow archive. Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.
Published DC-Tie Flow and Shadow PriceSPP · Daily publication (RTBM T+1 and Day-Ahead)	SPP-published MW flow and constraint shadow price by DC-tie name and direction for the real-time balancing market and day-ahead market. RTBM is a T+1 day archive, not a live five-minute stream; market_run distinguishes rt_5min from da_hourly. SHADOW PRICE is the marginal congestion cost of the flow constraint, not a settlement LMP. STEGALL and MILES_CITY each map to two physical settlement locations, so the source name is not a unique geographic join key.
Rolling SWPW tie flowsSPP · Publisher snapshot	SPP's Rolling SWPW tie flows. Each row preserves a publisher record, workbook row, or report document with its source member and row index. Source timestamps, units, geographic scope, and revision qualifiers are retained in record_json; event_time is collection time; completed_at is when the entire document became available.
Actual InterchangeISONE · hourly	ISO-NE actual interchange by published external location, with signed interchange, purchase, and sale components. Preserve location and direction; do not sum a net value with its purchase and sale components.