NYISO · Load
NYISO load forecast
NYISO's hourly load forecast six days ahead for each of its eleven zones and the state, issued each morning — every issue kept.
nyiso-load-forecast-6daydaily, morning ET · 1h rows12 entitiesWhat is in it
- Updates
- daily, morning ET · 1h rows
- Entities
- 12 entities — N.Y.C., LONGIL, NYISO…
- Source timezone
- US Eastern — every timestamp Dryos serves is UTC
- Coverage
- 14 September 2026 to now
- Rows held
- 12,096
- Primary key
- iso, zone, interval_start_utc, source_published_at_utc
What it measures
Every value, its unit, and what the source means by it.
- Load forecastMW
NYISO's forecast of the zone's load for the hour.
load_forecast_mw
Columns
Exactly what a request answers with, read from the API rather than written here.
| Column | Type | Description |
|---|---|---|
| interval_start_utcrequired | timestamp | Start of the forecast hour, UTC.e.g. 2026-09-15T04:00:00Z |
| isorequired | string | Publishing ISO.e.g. NYISO |
| zonerequired | string | Load zone as NYISO names it: CAPITL, CENTRL, DUNWOD, GENESE, HUD VL, LONGIL, MHK VL, MILLWD, N.Y.C., NORTH, WEST — and, in the forecast, NYISO, their sum.e.g. N.Y.C. |
| load_forecast_mw | number | NYISO's forecast of the zone's load for the hour, MW.e.g. 6239 |
| source_published_at_utcrequired | timestamp | The issue this forecast is from — the file's Last-Modified, UTC; a file is written once. Every issue is kept, so an hour carries a row per issue.e.g. 2026-09-14T11:30:06Z |
| collected_at_utcrequired | timestamp | When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-09-14T22:35:00Z |
Read it
Public, read-only, no key and no sign-up. Relative times stay relative, so a URL keeps working.
The newest rows
curl "https://api.dryos.ai/v1/datasets/nyiso-load-forecast-6day/query?node=N.Y.C.&limit=12"The catalogue entry — every column, its type and the source
curl "https://api.dryos.ai/v1/datasets/nyiso-load-forecast-6day"Full parameters — bucketing, aggregation, filters and search — are on the API reference.
Ask an agent
The same stream through the Model Context Protocol, so Claude, ChatGPT, Cursor or any MCP client can query it directly.
claude mcp add --transport http dryos https://api.dryos.ai/mcpThen ask:
What has Load forecast been at N.Y.C. over the last 24 hours, and when did it peak?
Setup for every client is on the MCP server page.
Changes to this collector
A change in the collector is a change in the data. Anyone reading a step in a series is owed the day it moved under them.
- 2026-09-14
First collected, from NYISO's MIS.
Every other operator's load forecast was here and NYISO's was not. Reconciled against the live files on 2026-09-14: every check passed.
How this stream is checked
- Pulled straight from NYISO MIS · ISO Load Forecast — no reseller in between — and compared against that file before it is served.
- Null means the source did not report it — never zero.
- A reading lands daily, morning ET; the interval timestamp is the start of the interval, in UTC.
- NYISO stamps its files in Eastern prevailing time with no zone column. Every timestamp Dryos serves is UTC.
Related streams
- NYISO load by zoneNYISO
Actual load every five minutes in each of NYISO's eleven zones — New York City, Long Island, the Hudson Valley and the rest of the state.
every 5 min · 5m rows11 entitiesnyiso-system-load - NYISO interface flowsNYISO
Flow every five minutes across each of NYISO's transfer interfaces — Total East, Central East, UPNY-ConEd and the ties with PJM, New England, Ontario and Quebec — against the limits it is held to.
every 5 min · 5m rows19 entitiesnyiso-interface-flows - NYISO real-time binding constraintsNYISO
Every transmission facility NYISO's real-time dispatch was up against, five minutes at a time, with the contingency it bound for and its constraint cost.
every 5 min, when bound · 5m rows4 entitiesnyiso-rt-shadow-prices - NYISO day-ahead binding constraintsNYISO
Every transmission facility that bound in NYISO's day-ahead market, hour by hour, with the contingency it bound for and its constraint cost, posted for tomorrow each morning.
daily, morning ET · 1h rows11 entitiesnyiso-dam-shadow-prices - NYISO real-time ancillary pricesNYISO
Five-minute clearing prices for NYISO's reserves and regulation — ten-minute spinning and non-synchronous, thirty-minute operating, regulation capacity and movement — in each of its eleven zones.
every 5 min · 5m rows11 entitiesnyiso-rt-as - NYISO day-ahead ancillary pricesNYISO
Hourly day-ahead clearing prices for NYISO's reserves and regulation capacity in each of its eleven zones, posted for tomorrow each morning.
daily, morning ET · 1h rows11 entitiesnyiso-dam-as