Ask the Grid

PG&E Maintenance Capacity

PG&E's posted maintenance on its backbone paths: path, segment, start and end dates, and the remaining capacity in MMcf/d during the work.

PG&EOutages & Grid Events dataCAISO market
Open in Data (opens in a new tab) Ask the agent
One row per
snapshot x path x segment x window
Per posting cadence
Evidence
Observed market data
Published observations from the named source
Time basis
Date-labelled records
UTC · event_time

Overview

Read the newest snapshot_date. Published by PG&E.

Query contract
Preserve one canonical row per (snapshot_date, path, segment, dates_label) before aggregating.
Analysis rules
Read with FINAL.Read the newest snapshot_date; a window absent from it was withdrawn or completed.
Interpretation
One utility's own system, not California-wide: PG&E and SoCalGas are separate systems, and neither includes the other's demand.Published by PG&E; attribute it to PG&E whenever it is reported.

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.CAISO MCPAPI reference
HTTP endpoint
POST /api/v1/datasets/pge_cgt_maintenance_capacity/query
Full history
Delivered to Snowflake, Databricks or your own storage on a schedule by Data services.
More coverage

Schema

11 columns
ColumnType
event_timeDateTime64(6, 'UTC')
observed_atNullable(DateTime64(6, 'UTC'))
snapshot_dateDate32
pathLowCardinality(String)
segmentLowCardinality(String)
dates_labelString
start_dateNullable(Date32)
end_dateNullable(Date32)
capacity_mmcfdNullable(Float64)
notesNullable(String)
ingested_atDateTime64(6, 'UTC')

Sample data

event_timeobserved_atsnapshot_datepathsegmentdates_labelstart_dateend_datecapacity_mmcfdnotesingested_at
2026-11-21 00:00:00.0000002026-10-31 06:40:51.8144382026-10-30bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-31 06:41:01.293078
2026-11-21 00:00:00.0000002026-10-25 06:40:56.5004442026-10-24bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-25 06:42:26.894870
2026-11-21 00:00:00.0000002026-10-25 06:40:56.5004442026-10-24bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-25 06:42:26.894870
2026-11-21 00:00:00.0000002026-10-25 06:40:56.5004442026-10-24bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-25 06:42:26.894870
2026-11-21 00:00:00.0000002026-10-24 06:40:51.6347982026-10-23bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-24 06:41:01.361275
2026-11-21 00:00:00.0000002026-10-26 06:40:52.4414972026-10-25bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-26 06:41:02.161977
2026-11-21 00:00:00.0000002026-10-31 06:40:51.8144382026-10-30bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-31 06:41:01.293078
2026-11-21 00:00:00.0000002026-10-24 06:40:51.6347982026-10-23bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-24 06:41:01.361275
2026-11-21 00:00:00.0000002026-10-26 06:40:52.4414972026-10-25bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-26 06:41:02.161977
2026-11-21 00:00:00.0000002026-10-29 06:40:51.8138652026-10-28bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-29 06:41:00.601568
2026-11-21 00:00:00.0000002026-10-24 06:40:51.6347982026-10-23bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-24 06:41:01.361275
2026-11-21 00:00:00.0000002026-10-26 06:40:52.4414972026-10-25bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-26 06:41:02.161977
2026-11-21 00:00:00.0000002026-10-23 06:40:52.3016472026-10-22bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-23 06:41:01.179117
2026-11-21 00:00:00.0000002026-10-31 06:40:51.8144382026-10-30bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-31 06:41:01.293078
2026-11-21 00:00:00.0000002026-10-31 07:45:34.0833222026-10-31bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-31 07:45:42.850803
2026-11-21 00:00:00.0000002026-10-23 06:40:52.3016472026-10-22bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-23 06:41:01.179117
2026-11-21 00:00:00.0000002026-10-23 06:40:52.3016472026-10-22bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-23 06:41:01.179117
2026-11-21 00:00:00.0000002026-10-27 06:40:55.5994482026-10-26bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-27 06:41:06.984084
2026-11-21 00:00:00.0000002026-10-22 06:40:52.0811522026-10-21bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-22 06:41:01.842795
2026-11-21 00:00:00.0000002026-10-31 07:45:34.0833222026-10-31bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-31 07:45:42.850803
2026-11-21 00:00:00.0000002026-10-22 06:40:52.0811522026-10-21bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-22 06:41:01.842795
2026-11-21 00:00:00.0000002026-10-27 06:40:55.5994482026-10-26bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-27 06:41:06.984084
2026-11-21 00:00:00.0000002026-10-22 06:40:52.0811522026-10-21bajaHinkleyNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-22 06:41:01.842795
2026-11-21 00:00:00.0000002026-10-30 06:40:53.6166942026-10-29bajaTopockNovember 21 - 302026-11-212026-11-30975L300A Pipeline Maintenance2026-10-30 06:41:02.737924
2026-11-21 00:00:00.0000002026-10-29 06:40:51.8138652026-10-28bajaKettlemanNovember 21 - 302026-11-212026-11-30500L300A Pipeline Maintenance2026-10-29 06:41:00.601568

Coverage

Complete
60.6%
Gap days
28
Days with data
43
Show coverage history
Coverage: 60.6%Days with data: 43Gaps: 28
2026
gaplessmore