Day-ahead hourly demand bids

PJM's Day-ahead hourly demand bids.

Load 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_hrl_dmd_bids/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 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	42	{"datetime_beginning_utc": "2026-10-11T18:00:00", "datetime_beginning_ept": "2026-10-11T14:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 25413.9}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	41	{"datetime_beginning_utc": "2026-10-11T17:00:00", "datetime_beginning_ept": "2026-10-11T13:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 80813.6}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	40	{"datetime_beginning_utc": "2026-10-11T17:00:00", "datetime_beginning_ept": "2026-10-11T13:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 40830.4}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	39	{"datetime_beginning_utc": "2026-10-11T17:00:00", "datetime_beginning_ept": "2026-10-11T13:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 25837.3}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	38	{"datetime_beginning_utc": "2026-10-11T16:00:00", "datetime_beginning_ept": "2026-10-11T12:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 80859.3}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	37	{"datetime_beginning_utc": "2026-10-11T16:00:00", "datetime_beginning_ept": "2026-10-11T12:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 40366.1}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	36	{"datetime_beginning_utc": "2026-10-11T16:00:00", "datetime_beginning_ept": "2026-10-11T12:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 26022.6}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	49	{"datetime_beginning_utc": "2026-10-11T20:00:00", "datetime_beginning_ept": "2026-10-11T16:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 42894.3}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	48	{"datetime_beginning_utc": "2026-10-11T20:00:00", "datetime_beginning_ept": "2026-10-11T16:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 25722.4}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	47	{"datetime_beginning_utc": "2026-10-11T19:00:00", "datetime_beginning_ept": "2026-10-11T15:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 82076.0}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	46	{"datetime_beginning_utc": "2026-10-11T19:00:00", "datetime_beginning_ept": "2026-10-11T15:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 42153.7}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	71	{"datetime_beginning_utc": "2026-10-12T03:00:00", "datetime_beginning_ept": "2026-10-11T23:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 75705.6}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	44	{"datetime_beginning_utc": "2026-10-11T18:00:00", "datetime_beginning_ept": "2026-10-11T14:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 81572.2}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	43	{"datetime_beginning_utc": "2026-10-11T18:00:00", "datetime_beginning_ept": "2026-10-11T14:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 41740.7}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	56	{"datetime_beginning_utc": "2026-10-11T22:00:00", "datetime_beginning_ept": "2026-10-11T18:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 87986.2}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	55	{"datetime_beginning_utc": "2026-10-11T22:00:00", "datetime_beginning_ept": "2026-10-11T18:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 44547.4}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	54	{"datetime_beginning_utc": "2026-10-11T22:00:00", "datetime_beginning_ept": "2026-10-11T18:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 27540.5}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	53	{"datetime_beginning_utc": "2026-10-11T21:00:00", "datetime_beginning_ept": "2026-10-11T17:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 86340.0}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	45	{"datetime_beginning_utc": "2026-10-11T19:00:00", "datetime_beginning_ept": "2026-10-11T15:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 25486.4}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	57	{"datetime_beginning_utc": "2026-10-11T23:00:00", "datetime_beginning_ept": "2026-10-11T19:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 27396.1}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	70	{"datetime_beginning_utc": "2026-10-12T03:00:00", "datetime_beginning_ept": "2026-10-11T23:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 39181.4}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	69	{"datetime_beginning_utc": "2026-10-12T03:00:00", "datetime_beginning_ept": "2026-10-11T23:00:00", "area": "MID_ATLANTIC_REGION", "hrly_da_demand_bid": 23313.6}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	52	{"datetime_beginning_utc": "2026-10-11T21:00:00", "datetime_beginning_ept": "2026-10-11T17:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 44166.1}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	67	{"datetime_beginning_utc": "2026-10-12T02:00:00", "datetime_beginning_ept": "2026-10-11T22:00:00", "area": "WESTERN_REGION", "hrly_da_demand_bid": 40844.3}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802
2026-10-11 04:17:51.896478	hrl_dmd_bids	2026-10-11	https://api.pjm.com/api/v1/hrl_dmd_bids?datetime_beginning_utc=10%2F11%2F2026+04%3A00+to+10%2F12%2F2026+03%3A59&startRow=1&rowCount=5000	hrl_dmd_bids-page-1.json	f2c72c29025e5b9143d2a7e421589eb7f2ce4fc34c555c009c0835fa21fe034e	68	{"datetime_beginning_utc": "2026-10-12T02:00:00", "datetime_beginning_ept": "2026-10-11T22:00:00", "area": "PJM_RTO", "hrly_da_demand_bid": 79205.9}	{"last-modified": "Sun, 11 Oct 2026 04:17:51 GMT", "content-type": "application/json", "totalRows": 72, "startRow": 1}	2026-10-11 04:17:52.027014	2026-10-11 04:17:52.699802

Coverage

100.0% complete0 gap days9 days with data

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Coverage: 100.0%Days with data: 9Gaps: 0

2026

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Related load data

Related load data
Dataset	Description
7-Day Load ForecastPJM · hourly (7-day horizon)	PJM's seven-day-ahead hourly load forecast by forecast area, refreshed through the day. Rows are keyed by target time (event_time) with the issue time in evaluated_at_utc; take the latest vintage per target hour via an argMax over evaluated_at_utc. Forecast areas match the very-short-term feed (utility names, RTO_COMBINED for the system total). This is the table for tomorrow's peak and the week-ahead demand outlook. Source: PJM Market Data.
Instantaneous LoadPJM · 5-minute	PJM metered load sampled every five minutes by area, where 'PJM RTO' is the whole-RTO system total and the remaining areas are the transmission-zone operating regions (AEP, COMED, DOM, PSEG, and so on). Because it posts within minutes, this is the live demand signal for PJM — system load, zonal load, and the shape of the daily peak — unlike the hourly metered-load tables that settle on a delay. Source: PJM Market Data.
PJM Hourly Actual LoadPJM · hourly	Actual hourly electricity demand in PJM, one row per hour with a system total and one column per load area. 75,672 hours, 2017-12 to now. Columns: system_mw plus aep_mw, ap_mw, atsi_mw, dayton_mw, deok_mw, dominion_mw, duquesne_mw, ekpc_mw, mid_atlantic_mw, northern_illinois_mw. system_mw is DERIVED as the sum of the ten areas, but unlike NYISO it has been checked: against PJM's own published RTO total over 517 overlapping hours the mean difference is 0.009% and the maximum 0.938%. Wide rather than long, so "load right now" and "the 10 load area shares of it" are one row, not 11. Every market's load table in this catalog shares the system_mw column and the same hourly grain, so a cross-market demand comparison needs no reshaping.
PJM Seven-Day Load ForecastPJM · hourly (reissued through the day)	PJM's seven-day hourly demand forecast in long form: issued_at (when PJM published the forecast), event_time (the hour being forecast), area, and forecast_mw. 4.14M rows across 2,033 issue vintages and 25 areas, covering forecasts issued since 2026-05-21 and targets out to seven days ahead. Because issue time and target time are separate columns, this table can answer both 'what does PJM expect for tomorrow evening' and 'what did PJM expect for that hour twelve hours before it happened' — the second question needs the issue-time filter, and getting it wrong turns a forecast evaluation into hindsight. The area column mixes three levels of the same hierarchy: the RTO total (RTO_COMBINED), three regional aggregates (MID_ATLANTIC_REGION, SOUTHERN_REGION, WESTERN_REGION), transmission zones (AEP, COMED, DOMINION, ...) and Mid-Atlantic sub-zones (PSE&G/MIDATL, PECO/MIDATL, ...). Summing across areas double-counts, in some cases three times over.