SPP · Grid
SPP capacity on outage
Generating capacity forecast out of service, hour by hour a week ahead, by fuel, for the RTO and RTO West — every daily report kept.
spp-gen-outagesdaily, a week ahead · 1h rows3 entitiesWhat is in it
- Updates
- daily, a week ahead · 1h rows
- Entities
- 3 entities — SPP, SWPW, Total…
- Source timezone
- US Central — every timestamp Dryos serves is UTC
- Coverage
- 13 September 2026 to now
- Rows held
- 2,520
- 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.
- OutagedMW
Capacity forecast out for the hour, every fuel.
outaged_mw - CoalMW
Of which coal.
coal_mw - Natural gasMW
Of which natural gas.
natural_gas_mw - WindMW
Of which wind.
wind_mw - HydroMW
Of which hydro.
hydro_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. SPP stamps the interval's end.e.g. 2026-09-13T05:00:00Z |
| isorequired | string | Publishing ISO.e.g. SPP |
| zonerequired | string | Balancing authority: SPP, SWPW, or Total (the two summed).e.g. SPP |
| outaged_mw | number | Generating capacity forecast out for the hour, MW, every fuel.e.g. 0.0 |
| coal_mw | number | Of which coal, MW.e.g. 0.0 |
| diesel_fuel_oil_mw | number | Of which diesel fuel oil, MW.e.g. 0.0 |
| hydro_mw | number | Of which hydro, MW.e.g. 0.0 |
| natural_gas_mw | number | Of which natural gas, MW.e.g. 0.0 |
| nuclear_mw | number | Of which nuclear, MW.e.g. 0.0 |
| solar_mw | number | Of which solar, MW.e.g. 0.0 |
| waste_disposal_mw | number | Of which waste disposal, MW.e.g. 0.0 |
| wind_mw | number | Of which wind, MW.e.g. 0.0 |
| waste_heat_mw | number | Of which waste heat, MW.e.g. 0.0 |
| other_mw | number | Of which other, MW.e.g. 0.0 |
| source_published_at_utcrequired | timestamp | The report this row is from: its day at midnight Central, in UTC. Every report is kept, so an hour carries a row per report that covered it.e.g. 2026-09-13T05:00:00Z |
| collected_at_utcrequired | timestamp | When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-09-14T22:20:00Z |
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/spp-gen-outages/query?node=SPP&limit=12"The catalogue entry — every column, its type and the source
curl "https://api.dryos.ai/v1/datasets/spp-gen-outages"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 Outaged been at SPP 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 SPP's marketplace portal.
PJM's outage forecasts were here and SPP's was not. Reconciled against the live files on 2026-09-14: schema, nulls, primary key, value bands and row counts passed.
How this stream is checked
- Pulled straight from SPP Marketplace Portal · Capacity of Generation on Outage — 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, a week ahead; the interval timestamp is the start of the interval, in UTC.
- SPP publishes on US Central prevailing time, with a UTC column on every row. Every timestamp Dryos serves is UTC.
Related streams
- SPP real-time market summarySPP
The real-time market's five-minute summary for the RTO and RTO West — generation, demand response, interchange, the system marginal price and the range of prices across the footprint — a day behind.
daily, a day behind · 5m rows2 entitiesspp-rt-market-clearing - SPP day-ahead market summarySPP
The day-ahead market's hourly summary for the RTO and RTO West — generation, demand and virtual bids cleared, interchange and the system marginal price — posted for tomorrow each afternoon.
daily, afternoon CT · 1h rows2 entitiesspp-dam-market-clearing - SPP interchange by tieSPP
Actual flow every minute on each of SPP's ties with its neighbours — MISO's areas, TVA, ERCOT, and RTO West's western neighbours — with each authority's net actual and net scheduled interchange.
every 5 min · 1m rows34 entitiesspp-interchange - PJM generation outages, week aheadPJM
PJM's generation outages for today and the next six days, for the RTO and its two regions, split into planned, maintenance and forced — issued daily and kept as vintages.
daily, a week ahead · 1d rows3 entitiespjm-gen-outages - SPP real-time LMPSPP
Real-time balancing market prices at every SPP settlement location — the trading hubs, load areas, resources, demand response and the interfaces with its neighbours — with the energy, congestion and loss components, every five minutes.
every 5 min · 5m rows1,612 entitiesspp-realtime-lmp - SPP day-ahead LMPSPP
Hourly day-ahead prices at every SPP settlement location — the trading hubs, load areas, resources, demand response and the interfaces with its neighbours — with the energy, congestion and loss components, posted for the whole of tomorrow each afternoon.
daily, afternoon CT · 1h rows1,612 entitiesspp-dam-lmp