MISO · Generation
MISO wind and solar
Hourly wind and solar output against MISO's own forecast for today and tomorrow, republished every hour and kept as vintages — so a forecast can be scored against what it said at the time, not only what it says now.
miso-wind-solarhourly, two days ahead · 1h rows2 entitiesWhat is in it
- Updates
- hourly, two days ahead · 1h rows
- Entities
- 2 entities — WIND, SOLAR…
- Source timezone
- Eastern Standard Time all year, never EDT — every timestamp Dryos serves is UTC
- Coverage
- 6 September 2026 to now
- Rows held
- 25,152
- 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.
- ActualMW
Metered output for the hour. Empty for hours that have not happened; slightly negative for solar at night, which is the plants' own load.
actual_mw - ForecastMW
MISO'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. MISO publishes wall-clock Eastern Standard Time year-round with no offset and labels intervals by their end; both are resolved on ingest.e.g. 2026-09-06T14:05:00Z |
| isorequired | string | Publishing ISO.e.g. MISO |
| resourcerequired | string | WIND or SOLAR.e.g. WIND |
| forecast_mwrequired | number | MISO's forecast for the hour, MW, as of this vintage.e.g. 7994 |
| actual_mw | number | Metered output for the hour, MW. Solar runs slightly negative at night, which is the plants' own station load.e.g. 5052.23 |
| source_published_at_utc | timestamp | MISO's own 'as of' stamp on the snapshot this row came from — the display's RefId — in UTC. The vintage of the reading, not when Dryos fetched it.e.g. 2026-09-06T14:20:00Z |
| collected_at_utcrequired | timestamp | When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-09-06T14:24:02Z |
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/miso-wind-solar/query?node=WIND&limit=12"The catalogue entry — every column, its type and the source
curl "https://api.dryos.ai/v1/datasets/miso-wind-solar"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 Actual been at WIND over the last 24 hours, and when did it peak?
Setup for every client is on the MCP server page.
How this stream is checked
- Pulled straight from MISO Public API · WindSolar — 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 hourly, two days ahead; the interval timestamp is the start of the interval, in UTC.
- MISO runs on Eastern Standard Time all year and never observes daylight saving. Every timestamp Dryos serves is UTC.
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