PJM · Generation
PJM wind and solar forecast
PJM's hourly wind forecast for the next 46 hours, re-issued every ten minutes, and its hourly solar forecast for the next four days — utility-scale and behind-the-meter separately — re-issued hourly. Every issue is a vintage.
pjm-wind-solar-forecastevery 10 min, two days ahead · 1h rows3 entitiesWhat is in it
- Updates
- every 10 min, two days ahead · 1h rows
- Entities
- 3 entities — WIND, SOLAR, SOLAR_BTM…
- Source timezone
- US Eastern — every timestamp Dryos serves is UTC
- Coverage
- 10 September 2026 to now
- Rows held
- 62,904
- Primary key
- iso, resource, interval_start_utc, source_published_at_utc
What it measures
Every value, its unit, and what the source means by it.
- ForecastMW
PJM's forecast for the hour, as of this vintage.
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 interval, UTC, read from PJM's own UTC column.e.g. 2026-09-09T12:30:00Z |
| isorequired | string | Publishing ISO.e.g. PJM |
| resourcerequired | string | WIND, SOLAR (metered utility-scale) or SOLAR_BTM (behind-the-meter, which PJM forecasts separately because it shows up as reduced load).e.g. WIND |
| forecast_mwrequired | number | PJM's forecast for the hour, as of this vintage. PJM publishes it as MWh over the hour, which is the same number as average MW.e.g. 1765.97 |
| source_published_at_utcrequired | timestamp | When PJM evaluated this forecast, UTC — the vintage. Every publication is kept, so one interval carries a row per vintage that covered it.e.g. 2026-09-10T02:15:00Z |
| collected_at_utcrequired | timestamp | When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-09-09T12:35:12Z |
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/pjm-wind-solar-forecast/query?node=WIND&limit=12"The catalogue entry — every column, its type and the source
curl "https://api.dryos.ai/v1/datasets/pjm-wind-solar-forecast"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 Forecast been at WIND 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.
- 2026-09-09
First collected, from PJM Data Miner 2.
Non-member API access was granted on 2026-09-09. Reconciled against live responses the same day: schema, nulls, primary key, value bands and row counts all passed, and the energy identity and the node naming rule were checked row-for-row against the day-ahead feed and the pricing-node master.
How this stream is checked
- Pulled straight from PJM Data Miner 2 · hourly wind and solar power forecasts — 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 every 10 min, two days ahead; the interval timestamp is the start of the interval, in UTC.
- PJM's Eastern Prevailing Time observes daylight saving; its rows carry UTC as well. Every timestamp Dryos serves is UTC.
Related streams
- PJM fuel mixPJM
What generated across PJM each hour, by fuel — gas, nuclear, coal, hydro, wind, solar, storage, oil and the rest — with each one's share of the total.
hourly, :15 past · 1h rows10 entitiespjm-fuel-mix - PJM wind outputPJM
Wind output across the whole of PJM, a SCADA reading every fifteen seconds, kept at that grain.
every 15 s · 15s rows1 entitypjm-wind-gen - PJM solar outputPJM
Metered utility-scale solar output across the whole of PJM every five minutes.
every 5 min · 5m rows1 entitypjm-solar-gen - PJM five-minute wind and solar forecastPJM
PJM's wind and solar forecasts for the next six hours in five-minute steps — solar utility-scale and behind-the-meter separately — re-issued every ten minutes.
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Unverified five-minute prices at PJM's 12 trading hubs, 22 transmission zones, 7 interfaces and every other aggregate pricing node, with the congestion and loss components, about four minutes after the interval starts.
every 5 min · 5m rows482 entitiespjm-realtime-lmp - PJM real-time hourly LMPPJM
PJM's own hourly integration of its unverified real-time prices at the 12 trading hubs, 22 transmission zones, 7 interfaces and every other aggregate, with the congestion and loss components, posted for the previous hour.
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