BPA Planned Transmission Outages

BPA's posted transmission outage plans (rolling year, monthly initial and final), every revision kept, one row per outage request.

BPAOutages & Grid Events data BPA market

Open in Data Ask the agent

One row per: plan revision x outage request; Every 6 hours cadence
Evidence: Forecast data; Forward-looking values with an explicit issue time
Time basis: Point-in-time records; UTC · event_time

Overview

Query contract: Preserve one canonical row per (plan_file, published_at, request_id) before aggregating.
Analysis rules: Read one plan_file revision at a time; the same request appears in many revisions.

Access

Download: Query it in SQL, download it, or read it with an API key. Download data
MCP: Connect an MCP client and load the contract with describe_data before calling query_data.BPA MCP API reference
HTTP endpoint: POST /api/v1/datasets/bpa_outage_plans/query
Full history: Delivered to Snowflake, Databricks or your own storage on a schedule by Data services.
More coverage

Schema

12 columns

Column	Type
`event_time`	`DateTime64(6, 'UTC')`
`plan_file`	`String`
`published_at`	`DateTime64(6, 'UTC')`
`request_id`	`String`
`caiso_id`	`Nullable(String)`
`start_time`	`DateTime64(6, 'UTC')`
`end_time`	`Nullable(DateTime64(6, 'UTC'))`
`main_element`	`Nullable(String)`
`elements_involved`	`Nullable(String)`
`paths_affected`	`Nullable(String)`
`source_url`	`String`
`ingested_at`	`DateTime64(6, 'UTC')`

Sample data

event_time	plan_file	published_at	request_id	caiso_id	start_time	end_time	main_element	elements_involved	paths_affected	source_url	ingested_at
2027-08-30 05:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	26-06214	19776012	2027-08-30 05:00:00.000000	2027-08-30 05:30:00.000000	GRAND COULEE: PCB 2392, GRAND COULEE: PCB 2396	∅	GEN, NOH, WOCN	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-26 14:30:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00160	20332939	2027-08-26 14:30:00.000000	2027-09-03 23:00:00.000000	BONNEVILLE PH 1-NORTH BONNEVILLE NO 1 230KV LINE	∅	GEN, WOCS, FCRPS	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-23 15:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00036	18726056	2027-08-23 15:00:00.000000	2027-11-17 02:00:00.000000	BIG EDDY-OSTRANDER NO 1 500KV LINE	∅	PDCI, SIG, WOCS, WOJD, BGEDY, NWACI	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-23 12:30:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00351	20890489	2027-08-23 12:30:00.000000	2027-09-10 22:00:00.000000	LIBBY: A-1590 TERMINAL OF LIBBY PH-LIBBY NO 1 230KV LINE	LIBBY PH-LIBBY NO 1 230KV LINE, LIBBY PH: 230/13.8KV BANK T1, LIBBY: PCB A-1590	GEN, FCRPS, FLAT, MT-NW	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-19 14:30:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00161	20333131	2027-08-19 14:30:00.000000	2027-08-25 23:00:00.000000	BONNEVILLE PH 1-NORTH BONNEVILLE NO 2 230KV LINE	BONNEVILLE PH: 230/13.8KV TRANSFORMER T5-6, BONNEVILLE PH: 230/13.8KV TRANSFORMER T7-8	GEN, WOCS, FCRPS	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-16 07:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	26-01021	19896415	2027-08-16 07:00:00.000000	2027-08-16 13:00:00.000000	NORTH BONNEVILLE-REMOVED JUMPERS AT 26/3 SECTION OF THE NORTH BONNEVILLE-MIDWAY NO 1 230KV LINE INCLUDING THE NORTH BONNEVILLE ANNEX-UNDERWOOD SECTION OF THE UNDERWOOD TAP TO THE BONNEVILLE PH-ALCOA NO 1&2 115KV LINE INCLUDING BALD MOUNTAIN TAP	BONNEVILLE PH 1-ALCOA NO 1&2 115KV LINE, UNDERWOOD: SKAMANIA CO PUD 115KV FEEDER 1, STEVENSON: SKAMANIA CO PUD 115KV FEEDER 1, NORTH BONNEVILLE: SKAMANIA CO PUD 115KV FEEDER 1, CARSON: SKAMANIA CO PUD 115KV FEEDER 1, BALD MOUNTAIN: PACIFICORP (PACW) 69KV FEEDER 1, BALD MOUNTAIN: KLICKITAT CO PUD 69KV FEEDER 1	WOCS, LOAD, GEN, FCRPS	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-14 15:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	26-01022	19895353	2027-08-14 15:00:00.000000	2027-11-18 02:00:00.000000	NORTH BONNEVILLE-ALFALFA SECTION OF NORTH BONNEVILLE-MIDWAY NO 1 230KV LINE	∅	WOCS, LOAD	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-13 14:30:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00162	20334999	2027-08-13 14:30:00.000000	2027-08-18 23:00:00.000000	BONNEVILLE PH 1-CAPE HORN SECTION OF BONNEVILLE PH 1-NORTH CAMAS NO 1 115KV LINE	BONNEVILLE-UNDERWOOD SECTION OF BONNEVILLE PH 1-NORTH CAMAS NO 1 115KV LINE, UNDERWOOD-CAPE HORN SECTION OF BONNEVILLE PH 1-NORTH CAMAS NO 1 115KV LINE	∅	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-12 19:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00356	20889353	2027-08-12 19:00:00.000000	2027-08-12 19:30:00.000000	THE DALLES PH-BIG EDDY NO 5 230KV LINE	THE DALLES PH: 230/13.8KV TRANSFORMER T7, THE DALLES PH: 230/13.8KV TRANSFORMER T8	GEN, FCRPS	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-10 15:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00191	20890916	2027-08-10 15:00:00.000000	2027-08-10 22:00:00.000000	LAPINE: PCB A-1553	∅	COR, NWACI	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-09 15:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00189	20874301	2027-08-09 15:00:00.000000	2027-08-09 22:00:00.000000	BRASADA: PCB B-1948	∅	∅	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-03 15:00:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00084	20874991	2027-08-03 15:00:00.000000	2027-08-12 22:00:00.000000	GRIZZLY: 500KV REACTOR 2 INCLUDING PCB 4720	GRIZZLY: 500KV REACTOR 2, GRIZZLY: PCB 4720	NWACI	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-02 14:30:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00163	20302620	2027-08-02 14:30:00.000000	2027-08-12 23:00:00.000000	BONNEVILLE-UNDERWOOD SECTION OF BONNEVILLE PH 1-ALCOA NO 1&2 115KV LINE INCLUDING PCB B-1521	UNDERWOOD: PCB B-1521, BONNEVILLE PH: PCB XW176	WOCS, FCRPS	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011
2027-08-02 13:30:00.000000	Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-01 19:15:35.000000	27-00355	20889313	2027-08-02 13:30:00.000000	2027-08-02 14:00:00.000000	THE DALLES PH-BIG EDDY NO 5 230KV LINE	THE DALLES PH: 230/13.8KV TRANSFORMER T7, THE DALLES PH: 230/13.8KV TRANSFORMER T8	GEN, FCRPS	https://www.bpa.gov/-/media/Aep/transmission/outage-coordination/2026/Sept---RollingYear-Outage-Plan--9-1-26.xlsx	2026-09-19 06:52:55.169011

Coverage

Complete: 14.9%
Gap days: 1,426
Days with data: 249

Show coverage history

Coverage: 14.9%Days with data: 249Gaps: 1,426

2027

2026

2025

2024

2023

gaplessmore

Related data

Related outages & grid events data
Dataset	Description
BPA Transmission OutagesBPA · every 3 hours	Every outage in BPA's calendar-year outage reports (1999 onward) and Daily Interruptions Reports: customer service points, transmission lines and transformers.
AlertsISONE · ISO-NE source publication	ISO-NE's published Alerts source feed. This catalog page exposes the physical schema, coverage, and latest source rows without inventing a normalized grain for publisher-shaped snapshot fields. Use the documented key and event time when comparing revisions or vintages.
California Independent Storage OutagesCalifornia independent storage · Per notice	Capacity reductions the independent storage fields post, per gas day: remaining injection and withdrawal capacity in Dth/d, with the notice subject and description. Published by each facility operator.
Completed-year archive of daily outage reportsSPP · year publication	SPP's Completed-year archive of daily outage reports. 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.