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CAISO interconnection queue

272 interconnection requests are active in CAISO, totalling 75.7 GW, as of 15 August 2026. Of the 2,285 requests ever filed here, 251 were built and 1,762 were withdrawn — a build rate of 12.5% on decided applications.

Active requests
272
of 2,285 ever filed
Capacity queued
75.7 GW
requested, not committed
Built vs decided
12.5%
251 built, 1,762 withdrawn
Median wait so far
6.3 yr
for requests still active
Median time to build
6.2 yr
request to commercial operation

Source: the CAISO interconnection queue as published by the transmission provider, parsed and normalised by Watt Street. Data as of 15 August 2026. Wait times are medians over requests that carry a measured date.

What is queued in CAISO, by fuel

FuelProjectsCapacity requested
Hybrid15547.3 GW
Battery9024.2 GW
Wind102.7 GW
Solar61.3 GW
Gas255 MW
Geothermal153 MW
Other144 MW
Hydro25 MW
Unknown5—

Where CAISO’s queue sits

StateApplicationsCapacity pending
California2,07659.6 GW
Arizona727.4 GW
Nevada1047.4 GW
MX181.3 GW
Idaho20 MW
New Mexico10 MW
Wyoming10 MW

Largest active requests

ProjectFuelCapacityCountyStateFiled
ATLAS COMPLEXHybrid3.2 GWLa Paz CountyAZ2017-05
HOLMANHybrid1.5 GWMonterey CountyCA2021-04
SANBORN HYBRID 3Hybrid1.4 GWKern CountyCA2019-04
ANGELENO SOLAR FARMHybrid1.1 GWLos Angeles CountyCA2019-04
WINGTIP SOLAR 1Hybrid1.1 GWMerced CountyCA2021-04
DARDENHybrid1.1 GWFresno CountyCA2021-04
UMBRIELHybrid1.1 GWImperial CountyCA2021-04
WINDWALKER OFFSHOREWind1.0 GWSan Luis Obispo CountyCA2020-04
PLUMHybrid1.0 GWKings CountyCA2021-04
BOUSE SOLAR AND STORAGE PLANTHybrid1.0 GWLa Paz CountyAZ2021-04
VIENTO FRONTERIZOWind973 MWMUNICIPALITY OF TECATEMX2020-04
BUTTONBUSH SOLAR HYBRID ENERGY CENTERHybrid800 MWKern CountyCA2019-04
IRVING STORAGEBattery750 MWMonterey CountyCA2019-05
ARIDA 2 SOLAR FARMHybrid700 MWClark CountyNV2019-04
MENIFEE POWER BANKBattery680 MWRiverside CountyCA2019-04

CAISO on the map

Open the map Every queue we track