Day-Ahead Zonal Bid Load

NYISO day-ahead zonal bid-load components by zone: energy bid load, bilateral load, price-cap load, virtual load, and virtual supply.

Load data

Download data

Native record

event_time x ptid

hourly (DAM) publication cadence

Evidence

Cleared day-ahead market

A market outcome, not a physical observation

Time basis

Point-in-time records

UTC · event_time

Overview

Use it to compare bid-in demand with forecasts and realized load.

Query contract

Preserve one canonical row per (event_time, ptid) before aggregating.

Analysis rules

Group only after preserving the declared grain: event_time, ptid.

Schema10

Column

Type

event_timeDateTime64(6, 'UTC')

time_zoneNullable(String)

zone_nameNullable(String)

ptidInt64

energy_bid_load_mwNullable(Float64)

bilateral_load_mwNullable(Float64)

price_cap_load_mwNullable(Float64)

virtual_load_mwNullable(Float64)

virtual_supply_mwNullable(Float64)

ingested_atDateTime64(6, 'UTC')

Sample data

event_time	time_zone	zone_name	ptid	energy_bid_load_mw	bilateral_load_mw	price_cap_load_mw	virtual_load_mw	virtual_supply_mw	ingested_at
2026-10-02 03:00:00.000000	EDT	LONGIL	61762	653	1465	0	119	-167	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	N.Y.C.	61761	1481	1900	1756	81	-219	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	DUNWOD	61760	129	125	245	33	-70	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	MILLWD	61759	142	43	47	70	-31	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	HUD VL	61758	545	160	264	24	-197	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	CAPITL	61757	838	217	0	13	-177	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	MHK VL	61756	501	172	0	26	-45	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	NORTH	61755	92	334	80	84	-52	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	CENTRL	61754	997	407	0	235	-68	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	GENESE	61753	810	167	0	22	-65	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	WEST	61752	950	562	0	7	-530	2026-10-01 14:55:56.492689
2026-10-02 03:00:00.000000	EDT	LONGIL	61762	653	1465	0	119	-167	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	N.Y.C.	61761	1481	1900	1756	81	-219	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	DUNWOD	61760	129	125	245	33	-70	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	MILLWD	61759	142	43	47	70	-31	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	HUD VL	61758	545	160	264	24	-197	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	CAPITL	61757	838	217	0	13	-177	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	MHK VL	61756	501	172	0	26	-45	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	NORTH	61755	92	334	80	84	-52	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	CENTRL	61754	997	407	0	235	-68	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	GENESE	61753	810	167	0	22	-65	2026-10-01 13:55:56.151374
2026-10-02 03:00:00.000000	EDT	WEST	61752	950	562	0	7	-530	2026-10-01 13:55:56.151374
2026-10-02 02:00:00.000000	EDT	LONGIL	61762	820	1471	0	195	-162	2026-10-01 14:55:56.492689
2026-10-02 02:00:00.000000	EDT	N.Y.C.	61761	1591	1970	1911	418	-212	2026-10-01 14:55:56.492689
2026-10-02 02:00:00.000000	EDT	DUNWOD	61760	144	131	275	64	-60	2026-10-01 14:55:56.492689

Coverage

100.0% complete0 gap days9,228 days with data

Show coverage history

Coverage: 100.0%Days with data: 9,228Gaps: 0

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Related load data

Related load data
Dataset	Description
Five-Minute Actual LoadNYISO · 5-minute	NYISO preliminary real-time actual load by load zone at five-minute resolution. This is the higher-cadence load series for intraday grid movement, while hourly integrated actual load remains the settlement-quality hourly view.
Hourly Actual LoadNYISO · hourly	NYISO integrated actual load by load zone at hourly resolution. The table covers the eleven NYISO zones and is the settlements-grade actual-load series used by the NYISO map cards; system actual load is computed by summing the zone rows.
Load ForecastNYISO · hourly forecast	NYISO P-7 hourly no-losses load forecast by load zone plus a NYISO system-total row. source_time is the file's actual publication timestamp, not its delivery-day filename; use the last pre-operating-day vintage for a settled forecast comparison and the latest available vintage for future hours.
NYISO Hourly Actual LoadNYISO · hourly	Actual hourly electricity demand in NYISO, one row per hour with a system total and one column per load zone. 101,978 hours, 2015-01 to now. Columns: system_mw plus west_mw, genesee_mw, central_mw, north_mw, mohawk_valley_mw, capital_mw, hudson_valley_mw, millwood_mw, dunwoodie_mw, nyc_mw, long_island_mw. system_mw is DERIVED as the sum of the eleven zones — NYISO's hourly integrated-load feed publishes no state total. It is therefore true by construction and is not independent corroboration of the zones. Wide rather than long, so "load right now" and "the 11 load zone shares of it" are one row, not 12. 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.