Verified real-time dispatched reserves

PJM's Verified real-time dispatched reserves.

Ancillary Services data PJM market

Query with the agent

Native record

publisher period x document x sheet/archive member x source row x collected revision

day publication publication cadence

Evidence

Mixed evidence

Multiple evidence types kept distinct in the contract

Time basis

Date-labelled records

UTC · report_date

Overview

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.

Query contract

The view admits a document only when its completion record and exact mirrored row count agree. Select a report_date, source_url and source_sha256 revision before joining source_member and row_index. Interpret observation times from the source record, never from the collection clock.

Analysis rules

Decode the report's source headers and units before aggregating. Never sum report_date, row_index, snapshots, revisions, regional totals and components, or forecast vintages.

Interpretation

report_date identifies the requested publisher period. It is not an observation timestamp. event_time records collection, not source publication or delivery.
The serving mirror keeps the latest row for each publisher record; older collected revisions may no longer be queryable.

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.

PJM MCP API reference

HTTP endpoint

POST /api/v1/datasets/pjm_report_rt_dispatch_reserves/query

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

Schema11

Column

Type

event_timeDateTime64(6, 'UTC')

datasetLowCardinality(String)

report_dateDate32

source_urlString

source_memberString

source_sha256String

row_indexInt64

record_jsonString

response_metadataString

ingested_atDateTime64(6, 'UTC')

completed_atDateTime64(6, 'UTC')

Sample data

event_time	dataset	report_date	source_url	source_member	source_sha256	row_index	record_json	response_metadata	ingested_at	completed_at
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	494	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:10:00", "datetime_beginning_ept": "2026-10-08T08:10:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Thirty-Minute Reserve", "total_reserve_mw": 13830.0, "reserve_reqmt_mw": 3190.0, "reliability_reqmt_mw": 3000.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	495	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:15:00", "datetime_beginning_ept": "2026-10-08T08:15:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Primary Reserve", "total_reserve_mw": 2261.0, "reserve_reqmt_mw": 2253.0, "reliability_reqmt_mw": 2063.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	496	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:15:00", "datetime_beginning_ept": "2026-10-08T08:15:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1565.0, "reserve_reqmt_mw": 1565.0, "reliability_reqmt_mw": 1375.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	497	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:15:00", "datetime_beginning_ept": "2026-10-08T08:15:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Primary Reserve", "total_reserve_mw": 3121.0, "reserve_reqmt_mw": 2786.0, "reliability_reqmt_mw": 2596.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	484	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:00:00", "datetime_beginning_ept": "2026-10-08T08:00:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Thirty-Minute Reserve", "total_reserve_mw": 13830.0, "reserve_reqmt_mw": 3190.0, "reliability_reqmt_mw": 3000.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	485	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:05:00", "datetime_beginning_ept": "2026-10-08T08:05:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Primary Reserve", "total_reserve_mw": 2261.0, "reserve_reqmt_mw": 2253.0, "reliability_reqmt_mw": 2063.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	486	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:05:00", "datetime_beginning_ept": "2026-10-08T08:05:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1565.0, "reserve_reqmt_mw": 1565.0, "reliability_reqmt_mw": 1375.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	487	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:05:00", "datetime_beginning_ept": "2026-10-08T08:05:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Primary Reserve", "total_reserve_mw": 3121.0, "reserve_reqmt_mw": 2786.0, "reliability_reqmt_mw": 2596.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	488	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:05:00", "datetime_beginning_ept": "2026-10-08T08:05:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1920.0, "reserve_reqmt_mw": 1920.0, "reliability_reqmt_mw": 1730.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	489	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:05:00", "datetime_beginning_ept": "2026-10-08T08:05:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Thirty-Minute Reserve", "total_reserve_mw": 13830.0, "reserve_reqmt_mw": 3190.0, "reliability_reqmt_mw": 3000.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	490	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:10:00", "datetime_beginning_ept": "2026-10-08T08:10:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Primary Reserve", "total_reserve_mw": 2261.0, "reserve_reqmt_mw": 2253.0, "reliability_reqmt_mw": 2063.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	477	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:55:00", "datetime_beginning_ept": "2026-10-08T07:55:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Primary Reserve", "total_reserve_mw": 3121.0, "reserve_reqmt_mw": 2786.0, "reliability_reqmt_mw": 2596.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	478	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:55:00", "datetime_beginning_ept": "2026-10-08T07:55:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1920.0, "reserve_reqmt_mw": 1920.0, "reliability_reqmt_mw": 1730.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	479	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:55:00", "datetime_beginning_ept": "2026-10-08T07:55:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Thirty-Minute Reserve", "total_reserve_mw": 13846.0, "reserve_reqmt_mw": 3190.0, "reliability_reqmt_mw": 3000.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	480	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:00:00", "datetime_beginning_ept": "2026-10-08T08:00:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Primary Reserve", "total_reserve_mw": 2262.0, "reserve_reqmt_mw": 2254.0, "reliability_reqmt_mw": 2064.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	481	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:00:00", "datetime_beginning_ept": "2026-10-08T08:00:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1566.0, "reserve_reqmt_mw": 1566.0, "reliability_reqmt_mw": 1376.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	482	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:00:00", "datetime_beginning_ept": "2026-10-08T08:00:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Primary Reserve", "total_reserve_mw": 3121.0, "reserve_reqmt_mw": 2786.0, "reliability_reqmt_mw": 2596.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	483	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T12:00:00", "datetime_beginning_ept": "2026-10-08T08:00:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1920.0, "reserve_reqmt_mw": 1920.0, "reliability_reqmt_mw": 1730.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	470	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:50:00", "datetime_beginning_ept": "2026-10-08T07:50:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Primary Reserve", "total_reserve_mw": 2263.0, "reserve_reqmt_mw": 2256.0, "reliability_reqmt_mw": 2066.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	471	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:50:00", "datetime_beginning_ept": "2026-10-08T07:50:00", "area": "Mid-Atlantic/Dominion Reserve Subzone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1567.0, "reserve_reqmt_mw": 1567.0, "reliability_reqmt_mw": 1377.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	454	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:30:00", "datetime_beginning_ept": "2026-10-08T07:30:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Thirty-Minute Reserve", "total_reserve_mw": 14008.0, "reserve_reqmt_mw": 3190.0, "reliability_reqmt_mw": 3000.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	473	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:50:00", "datetime_beginning_ept": "2026-10-08T07:50:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Synchronized Reserve", "total_reserve_mw": 1920.0, "reserve_reqmt_mw": 1920.0, "reliability_reqmt_mw": 1730.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	474	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:50:00", "datetime_beginning_ept": "2026-10-08T07:50:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Thirty-Minute Reserve", "total_reserve_mw": 13846.0, "reserve_reqmt_mw": 3190.0, "reliability_reqmt_mw": 3000.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	472	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:50:00", "datetime_beginning_ept": "2026-10-08T07:50:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Primary Reserve", "total_reserve_mw": 3121.0, "reserve_reqmt_mw": 2786.0, "reliability_reqmt_mw": 2596.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090
2026-10-11 03:18:42.001727	rt_dispatch_reserves	2026-10-08	https://api.pjm.com/api/v1/rt_dispatch_reserves?datetime_beginning_utc=10%2F08%2F2026+04%3A00+to+10%2F09%2F2026+03%3A59&startRow=1&rowCount=5000	rt_dispatch_reserves-page-1.json	ac2f9592e453b95d641d498ee4890f904b36c028ffc10c8b12a529e673ac1b1f	462	{"mkt_day": "2026-10-08T00:00:00", "datetime_beginning_utc": "2026-10-08T11:40:00", "datetime_beginning_ept": "2026-10-08T07:40:00", "area": "PJM RTO Reserve Zone", "reserve_type": "Primary Reserve", "total_reserve_mw": 3121.0, "reserve_reqmt_mw": 2786.0, "reliability_reqmt_mw": 2596.0, "extended_reqmt_mw": 190.0, "additional_extended_reqmt_mw": 0.0, "deficit_mw": 0.0}	{"last-modified": "Sun, 11 Oct 2026 03:18:41 GMT", "content-type": "application/json", "totalRows": 1440, "startRow": 1}	2026-10-11 03:18:42.031996	2026-10-11 03:18:42.161090

Coverage

100.0% complete0 gap days59 days with data

Show coverage history

Coverage: 100.0%Days with data: 59Gaps: 0

2026

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Related ancillary services data

Related ancillary services data
Dataset	Description
Daily generation capacityPJM · day publication	PJM's Daily generation capacity. 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.
Live Dispatched Reserve Quantities, Requirements and ShortagesPJM · 5-minute	PJM five-minute real-time dispatched reserves by reserve area and product, with reported shortage indicators, reserve quantity, reserve requirement, reliability and extended requirements, market clearing price and MW adjustment. This is the live operational reserve-shortage evidence for synchronized, primary and 30-minute reserves, including PJM_RTO and Mid-Atlantic/Dominion, rather than the delayed settled reserve market results or regulation prices. Compare the same interval with energy prices to investigate reserve scarcity. Dispatch and pricing runs differ; this feed does not identify a specific generator trip or reconstruct energy LMP. Source timestamp strings are preserved alongside parsed UTC event_time.
Operational reserve quantitiesPJM · day publication	PJM's Operational reserve quantities. 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.
Performance assessment intervalsPJM · day publication	PJM's Performance assessment intervals. 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.