Renewables Actuals

Hourly renewable generation actuals for the CAISO footprint, broken out by renewable resource type such as solar and wind.

Generation data CAISO market

Query with the agent

Native record

renewable trading hub x resource type x operating hour

hourly publication cadence

Evidence

Observed market data

Published observations from the named source

Time basis

Interval-start records

UTC · event_time

Overview

This dataset shows how much renewable output was physically contributing to the California grid in each hour, making it central to net-load analysis and to understanding ramps around sunrise and sunset. Paired with actual load and real-time prices, it helps explain when renewable production is easing supply conditions or when falling output is creating evening ramp pressure. The public source is CAISO Today's Outlook.

Query contract

Preserve one row per event_time, trading_hub, and renewable_type before aggregating.

Analysis rules

For CAISO-wide solar or wind output, query at one exact common event_time, group by renewable_type, and sum mw across NP15, SP15, and ZP26 in SQL. Do not retrieve six hub rows and reconstruct resource totals by array position.
Do not add observations from different event times or market_run values.

Interpretation

This dataset contains solar and wind actuals only. It does not contain the all-resource generation denominator required for a share of total supply mix.
CA ISO-TAC load is demand, not total generation supply. Do not substitute load as the denominator when the user asks for share of supply mix; return solar/wind MW and state that the requested percentage is unsupported.

Access

Query from your own tools

Use the guarded HTTP endpoint directly, or connect an MCP client and load the dataset contract with describe_data before calling query_data.

CAISO MCP API reference

HTTP endpoint

POST /api/v1/datasets/caiso_renewables_actual_hourly/query

Schema7

Column

Type

event_timeDateTime64(6, 'UTC')

trading_hubLowCardinality(String)

renewable_typeLowCardinality(String)

mwNullable(Float64)

market_runNullable(String)

labelNullable(String)

ingested_atDateTime64(6, 'UTC')

Sample data

event_time	trading_hub	renewable_type	mw	market_run	label	ingested_at
2026-09-29 03:00:00.000000	ZP26	Wind	47.30413	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:32.680747
2026-09-29 03:00:00.000000	ZP26	Solar	8.06244	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:32.680747
2026-09-29 03:00:00.000000	SP15	Wind	4589.05346	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:32.680747
2026-09-29 03:00:00.000000	SP15	Solar	-36.72449	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:32.680747
2026-09-29 03:00:00.000000	NP15	Wind	696.24347	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:32.680747
2026-09-29 03:00:00.000000	NP15	Solar	-7.72006	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:32.680747
2026-09-29 02:00:00.000000	ZP26	Wind	51.32994	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:21.194304
2026-09-29 02:00:00.000000	ZP26	Solar	8.18346	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:21.194304
2026-09-29 02:00:00.000000	SP15	Wind	4658.91049	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:21.194304
2026-09-29 02:00:00.000000	SP15	Solar	-39.98155	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:21.194304
2026-09-29 02:00:00.000000	NP15	Wind	704.90068	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:21.194304
2026-09-29 02:00:00.000000	NP15	Solar	-8.63814	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 04:15:21.194304
2026-09-29 02:00:00.000000	ZP26	Wind	51.32994	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:33.118783
2026-09-29 02:00:00.000000	ZP26	Solar	8.18346	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:33.118783
2026-09-29 02:00:00.000000	SP15	Wind	4658.91049	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:33.118783
2026-09-29 02:00:00.000000	SP15	Solar	-39.98155	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:33.118783
2026-09-29 02:00:00.000000	NP15	Wind	704.90068	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:33.118783
2026-09-29 02:00:00.000000	NP15	Solar	-8.63814	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:33.118783
2026-09-29 01:00:00.000000	ZP26	Wind	43.72224	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:21.686562
2026-09-29 01:00:00.000000	ZP26	Solar	160.10631	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:21.686562
2026-09-29 01:00:00.000000	SP15	Wind	4843.80508	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:21.686562
2026-09-29 01:00:00.000000	SP15	Solar	327.28127	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:21.686562
2026-09-29 01:00:00.000000	NP15	Wind	593.38171	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:21.686562
2026-09-29 01:00:00.000000	NP15	Solar	109.79788	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 03:15:21.686562
2026-09-29 00:00:00.000000	ZP26	Wind	53.52437	ACTUAL	Renewable Forecast Actual Generation	2026-09-29 02:15:22.021064

Coverage

100.0% complete0 gap days1,337 days with data

Show coverage history

Coverage: 100.0%Days with data: 1,337Gaps: 0

2026

2025

2024

2023

gaplessmore

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