CAISO · Generation
CAISO fifteen-minute wind and solar forecast
The wind and solar forecast behind CAISO's fifteen-minute market, for NP15, SP15, ZP26 and every Western EIM balancing authority.
caiso-renewables-forecast-15minevery 15 min, ~25 min ahead · 15m rows24 entitiesWhat is in it
- Updates
- every 15 min, ~25 min ahead · 15m rows
- Entities
- 24 entities — SP15, NP15, ZP26…
- Source timezone
- US Pacific — every timestamp Dryos serves is UTC
- Coverage
- 14 September 2026 to now
- Rows held
- 8,304
- Primary key
- iso, zone, interval_start_utc
What it measures
Every value, its unit, and what the source means by it.
- SolarMW
Forecast solar for the hub. Null where the hub has none.
solar_mw - WindMW
Forecast wind for the hub. Null where the hub has none.
wind_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 OASIS's GMT column.e.g. 2026-09-14T20:00:00Z |
| isorequired | string | Publishing ISO.e.g. CAISO |
| zonerequired | string | Trading hub or area as CAISO names it (TRADING_HUB): NP15, SP15 and ZP26 for CAISO, and each Western EIM balancing authority. The day-ahead and hour-ahead solar forecasts carry one spelled AVA_, kept as published.e.g. SP15 |
| wind_mw | number | Wind for the hub or area, MW.e.g. 1339.67 |
| solar_mw | number | Solar for the hub or area, MW. A few MW negative at night: the plants' own draw.e.g. 13401.81 |
| source_published_at_utc | timestamp | When CAISO published the row, UTC. |
| collected_at_utcrequired | timestamp | When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-09-14T17:37:12Z |
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/caiso-renewables-forecast-15min/query?node=SP15&limit=12"The catalogue entry — every column, its type and the source
curl "https://api.dryos.ai/v1/datasets/caiso-renewables-forecast-15min"Hourly averages for the last day
curl "https://api.dryos.ai/v1/datasets/caiso-renewables-forecast-15min/query?node=SP15&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 Solar been at SP15 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 CAISO OASIS.
Wind and solar by hub at every grain CAISO publishes them.
How this stream is checked
- Pulled straight from CAISO OASIS · SLD_REN_FCST (RTPD) — 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 15 min, ~25 min ahead; the interval timestamp is the start of the interval, in UTC.
- CAISO's market clock is US Pacific; OASIS answers in UTC. Every timestamp Dryos serves is UTC.
Related streams
- CAISO fuel mixCAISO
What is generating across CAISO every five minutes — solar, wind, geothermal, biomass, biogas, small and large hydro, coal, nuclear, gas, batteries and net imports.
every 5 min · 5m rows13 entitiescaiso-fuel-mix - CAISO five-minute wind and solar forecastCAISO
The wind and solar forecast CAISO's real-time dispatch runs on, every five minutes, for NP15, SP15, ZP26 and every Western EIM balancing authority.
every 5 min · 5m rows24 entitiescaiso-renewables-forecast-5min - CAISO hourly actual wind and solarCAISO
Hourly actual wind and solar generation at CAISO's three trading hubs.
hourly, ~1 h after the hour · 1h rows3 entitiescaiso-renewables-actual-hourly - CAISO day-ahead wind and solar forecastCAISO
CAISO's hourly day-ahead wind and solar forecast for its three hubs (and one area OASIS spells AVA_), kept as snapshots stamped when Dryos first saw each value.
checked every 15 min, two days out · 1h rows4 entitiescaiso-renewables-forecast-dam - CAISO hour-ahead wind and solar forecastCAISO
CAISO's hourly hour-ahead wind and solar forecast for its three hubs, kept as snapshots stamped when Dryos first saw each value.
checked every 15 min · 1h rows4 entitiescaiso-renewables-forecast-hasp - CAISO real-time LMPCAISO
Real-time dispatch prices at every CAISO aggregated pricing node — the NP15, SP15 and ZP26 trading hubs, the utilities' load aggregation points, resources, and the pricing points of every Western Energy Imbalance Market area — with the energy, congestion, loss and greenhouse-gas components, every five minutes.
every 5 min · 5m rows2,711 entitiescaiso-realtime-lmp