Dataframe: CAISO:caiso_renewables_hourly - CAISO Renewables Hourly

Description

Hourly solar and wind generation in the CAISO footprint. Locations cover the system total (CAISO) plus the three trading-hub zones (NP15, SP15, ZP26), so the zonal series line up directly with hub-level price analyses.

This dataset provides grid operational context. Because the zones match the three CAISO trading hubs, it serves as a zonal conditioning variable - for example, relating renewable output in a zone to spreads or price behavior at the corresponding hub.

Data Dictionary

• interval_start_utc: TIMESTAMP Interval start, UTC.

• interval_end_utc: TIMESTAMP Interval end (start + 1 hour), UTC.

• location: VARCHAR One of CAISO (system total), NP15, SP15, ZP26.

• solar: DOUBLE PRECISION Solar generation, MW. Slightly negative overnight (parasitic load of the plants themselves).

• wind: DOUBLE PRECISION Wind generation, MW.

Notes

• Coverage begins 2023-05-01 at hourly granularity and is topped up on an ongoing basis.

• The CAISO row is the system-wide total; the other three rows are the trading-hub zones.

• Overnight solar values are slightly negative rather than zero - this reflects the parasitic load of solar facilities and is a property of the source data, not an error.

Data Preview

Rows: 116,279  |  Columns: 5  |  Cache: data/opensource/caiso_renewables_hourly.parquet

Sample rows

First and latest 5 rows by interval_start_utc.

interval_start_utc	interval_end_utc	location	solar	wind
2023-05-01 07:00	2023-05-01 08:00	ZP26	124.183
2023-05-01 07:00	2023-05-01 08:00	SP15	-3.493	2265.48
2023-05-01 07:00	2023-05-01 08:00	NP15	-4.628	815.43
2023-05-01 07:00	2023-05-01 08:00	CAISO	116.062	3080.91
2023-05-01 08:00	2023-05-01 09:00	ZP26	124.2
…	…	…	…	…
2026-08-27 05:00	2026-08-27 06:00	ZP26	-9.043	60.616
2026-08-27 06:00	2026-08-27 07:00	CAISO	-61.458	3105.033
2026-08-27 06:00	2026-08-27 07:00	NP15	-5.25	725.268
2026-08-27 06:00	2026-08-27 07:00	SP15	-47.094	2313.953
2026-08-27 06:00	2026-08-27 07:00	ZP26	-9.115	65.812

Column summary

Column	Dtype	Nulls	Min	Max
interval_start_utc	Datetime[ns]	0	2023-05-01 07:00	2026-08-27 06:00
interval_end_utc	Datetime[ns]	0	2023-05-01 08:00	2026-08-27 07:00
location	String	0	CAISO	ZP26
solar	Float64	1	-352.211	19738.454
wind	Float64	6792	-114.304	5956.826

DataFrame Glimpse

Rows: 116279
Columns: 5
$ interval_start_utc <datetime[ns]> 2026-08-27 06:00:00
$ interval_end_utc   <datetime[ns]> 2026-08-27 07:00:00
$ location                    <str> 'ZP26'
$ solar                       <f64> -9.11527
$ wind                        <f64> 65.81215

Dataframe Manifest

Dataframe Name	CAISO Renewables Hourly
Dataframe ID	caiso_renewables_hourly
Data Sources	CAISO OASIS (SLD_REN_FCST, ACTUAL)
Data Providers	CAISO
Links to Providers	http://oasis.caiso.com
Topic Tags	Renewables, Grid Context
Type of Data Access
How is data pulled?	src/pulls/pull_caiso_renewables_hourly.py via the open-source gridstatus library
Data available up to (min)	N/A
Data available up to (max)	N/A
Dataframe Path	data\opensource\caiso_renewables_hourly.parquet

Linked Charts:

• None

Pipeline Manifest

Pipeline Name	Project-Lab-Energy-Weather-Natgas-Quanto-CAISO
Pipeline ID	CAISO
Lead Pipeline Developer	Brian Nguyen
Contributors	Brian Nguyen, Claire Kim
Git Repo URL
Pipeline Web Page	Pipeline Web Page
Date of Last Code Update	2026-08-27 10:08:05
OS Compatibility	Windows, Linux, macOS
Linked Dataframes	CAISO:caiso_lmp_day_ahead_hourly CAISO:caiso_lmp_real_time_15_min CAISO:caiso_lmp_real_time_5_min CAISO:caiso_fuel_prices CAISO:caiso_fuel_regions CAISO:caiso_load CAISO:caiso_load_hourly CAISO:caiso_fuel_mix CAISO:caiso_renewables_hourly CAISO:caiso_curtailed_non_operational_generator_report CAISO:caiso_outages_aggregated_hourly CAISO:openmeteo_temperature_daily CAISO:eia860m_generators CAISO:us_ba_boundaries

Build Commands:

doit