ERCOT · Generation
Fuel mix
Output by fuel type across the interconnect, every five minutes. What is actually setting the price. Collected from ERCOT's dashboard feed, which retains two days — the history exists because this collector keeps running.
ercot-fuel-mixevery 5 min · 5m rows8 entitiesWhat is in it
- Updates
- every 5 min · 5m rows
- Entities
- 8 entities — NATURAL_GAS, WIND, SOLAR…
- Source timezone
- US Central — every timestamp Dryos serves is UTC
- Coverage
- 28 August 2026 to now
- Rows held
- 48,160
- Primary key
- iso, fuel, interval_start_utc
What it measures
Every value, its unit, and what the source means by it.
- OutputMW
Generation for the fuel type over the interval. Storage runs negative while charging.
gen_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. Always UTC — ERCOT publishes wall-clock Central with a repeated-hour flag, which is resolved on ingest.e.g. 2026-08-29T14:15:00Z |
| isorequired | string | Publishing ISO.e.g. ERCOT |
| fuelrequired | string | Fuel type token: NATURAL_GAS, WIND, SOLAR, NUCLEAR, COAL_LIGNITE, HYDRO, POWER_STORAGE, OTHER. Storage runs negative while charging.e.g. NATURAL_GAS |
| gen_mwrequired | number | Generation from this fuel over the 5-minute interval, MW.e.g. 44687.6 |
| source_published_at_utcrequired | timestamp | When ERCOT posted the document this row came from, UTC. For reports republished on a rolling window this is the vintage: the same interval appears once per publication, and the newest is the current view.e.g. 2026-08-29T14:17:01Z |
| collected_at_utcrequired | timestamp | When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-08-29T14:18:02Z |
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/ercot-fuel-mix/query?node=NATURAL_GAS&limit=12"The catalogue entry — every column, its type and the source
curl "https://api.dryos.ai/v1/datasets/ercot-fuel-mix"Hourly averages for the last day
curl "https://api.dryos.ai/v1/datasets/ercot-fuel-mix/query?node=NATURAL_GAS&start=-24h&interval=1h&agg=avg"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 Output been at NATURAL_GAS 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 ERCOT Dashboards · fuel-mix.json — 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 5 min; the interval timestamp is the start of the interval, in UTC.
- ERCOT settles and publishes on US Central time. Every timestamp Dryos serves is UTC.
Related streams
- Wind: actual and forecastERCOT
Hourly averaged actual wind generation and ERCOT's own forecasts, system-wide and by load zone, refreshed hourly.
hourly, rolling week · 1h rows4 entitiesercot-wind-hourly - Wind by geographical regionERCOT
Hourly averaged actual wind generation and forecasts by geographical region — Panhandle, Coastal, South, West, North.
hourly, rolling week · 1h rows6 entitiesercot-wind-hourly-geo - Solar: actual and forecastERCOT
Hourly averaged actual solar generation and ERCOT's own forecasts, system-wide, refreshed hourly with a rolling week of horizon.
hourly, rolling week · 1h rows1 entityercot-solar-hourly - Solar by geographical regionERCOT
Hourly averaged actual solar generation and forecasts by geographical region — CenterWest through FarEast.
hourly, rolling week · 1h rows7 entitiesercot-solar-hourly-geo - MISO fuel mixMISO
Output by fuel category across the Midcontinent footprint every five minutes — coal, gas, nuclear, wind, solar, storage, imports and other.
every 5 min · 5m rows8 entitiesmiso-fuel-mix - SPP fuel mixSPP
What is generating across SPP's RTO every five minutes — wind, gas, coal, nuclear, hydro, solar, storage and the rest — with each source split into what the market dispatched and what its owner self-scheduled.
every 5 min · 5m rows11 entitiesspp-fuel-mix