CAISO node intelligence

WHIRLWIND SUBSTATION

KERN (CA) · SCE · node key WHIRLWIND · CAISO run date 2026-10-12

Seven questions a developer, lender or counsel asks before filing here. Every figure is a CAISO row; Not public marks what the public files cannot answer and where to get it. Definitions: methodology.

Can you get in?

No official Cluster 16 availability statement names this POI. Absence of a statement is not availability.

Not public: per-constraint transmission headroom at this POI — CAISO's cluster study reports (RIMS login).
Not on this site yet: the zonal transmission-capability table CAISO publishes for cluster scoring — public; the join is planned.

Who is ahead of you?

3,273 MW (n=14)
queued ahead of a new request (legacy + C15)
2,472 MW (n=11)
with an executed interconnection agreement · public report; C15 has no IA yet
2,120 MW (n=18)
operating at this node
801 MW
Cluster 15 requests seeking full capacity
Already operating within 5 km (EIA-860): 6 plants; 706 MW nameplate; 147 MW storage (EIA reports 147 MWh, i.e. one hour or less — this may reflect how the form was filled; duration not established); oldest unit 2012; 186 MW proposed. Technology: Solar Photovoltaic 407; Onshore Wind Turbine 152; Batteries 147. Operators: Arevon Energy, Inc.; EDF Renewable Asset Holdings, Inc.; Golden Fields Solar III, LLC; RE Astoria 2 LLC; RE Astoria LLC. Owners: 8point3 Operating Company LLC; State Street Bank and Trust Company. LMP nodes reported by these generators: POD_ASTORA_2_SOLAR1-APND; POD_ASTORA_2_SOLAR2-APND. Joined by distance to this node's mapped position, not by point of interconnection: a plant on a long gen-tie lands on the nearest substation. Corporate names from a federal filing.
Not public: who the interconnection customers are (the queue) — CAISO's public files carry project names only; the projects table below is the full public record. EIA-860 names the owners of what already operates nearby, not of what is queued.

Do projects leave after seeing the costs?

5,954 MW (n=35)
received Phase II / Facilities Study results here · any sheet, public report
1,365 MW (n=7)
of that, withdrew with results in hand
0.23 (n=35)
Phase II attrition (MW share)
Not public: the network upgrade cost allocated to a project here — Phase I / Phase II study reports, served through RIMS. Ask the incumbent developer or request the report; nothing public reconstructs it.

Will you be deliverable?

166 MW (n=2)
2025 TPD requested at this node
128 MW
allocated
0 MW
refused at 0 % — contracted / shortlisted (groups A+B)
0 MW
refused at 0 % — no PPA (group D)
3 / 0
2024 cycle: projects given full / partial capacity

A 0 % in group D is the expected result for an uncontracted project; a 0 % in group A or B is a contracted project that did not get deliverability. Rows are joined through all three sheets, so a request whose project has since withdrawn still appears. CAISO states no reason.

Will the power be worth anything here?

The Local Capacity Technical Report does not name this substation on any area boundary: not encoded, which is not the same as outside every area.

Not on this site yet: day-ahead price history at this POI — CAISO OASIS publishes it; it is shown only for a pricing node confirmed by hand in data/poi_pnodes.csv, and this one is not confirmed yet.

Will the land pass intake?

Intake scoring under the 2023 IPE rewards site control, permitting progress and system need before study begins. Parcel, zoning, Williamson Act and CEC exclusion screens run for Kings and Kern counties (caiso-siting parcels, layers screen); results are in outputs/parcels_*.md for the nodes they were run on and are not yet rendered per node here.

Not public: landowner willingness and option terms — county assessor parcels give ownership class, not intent; owner names are withheld on purpose.

How long, and who gave up?

300 MW (n=1)
withdrawn since 2022 (both reports)
300 MW
of that, storage
0.09 (n=33)
storage churn · withdrawn storage ÷ queued + operating storage
1.00 (n=3)
Cluster 15 survival · active ÷ (active + withdrawn)
7,115 MW (n=28)
all-time withdrawn since 2006 · mostly wind/solar-era; colour, not signal
2026-06-01 to 2031-06-01
current on-line dates of active projects

Cluster-level time-to-withdrawal curves are on the Survival page; they compare process regimes, not only nodes.

Projects at this node (60)

Both reports. cod = current on-line date (public report) or proposed on-line date (Cluster 15). ia_status exists only in the public report. Cluster 15 deliverability is requested, not allocated.

project_namequeue_positionsheet_statusclusternet_mwstorage_mwdeliverabilityia_statuscodwithdrawn_date
EUISMOD2055ACTIVEC14600600FULL CAPACITYEXECUTED2028-06-01
WILLOW ROCK ENERGY STORAGE1782ACTIVEC13500108FULL CAPACITYEXECUTED2030-07-01
GREASEWOOD ENERGY STORAGE2089ACTIVEC14500500FULL CAPACITYEXECUTED2031-06-01
Moonraker2246ACTIVEC15350350FULL CAPACITY (REQ)2029-12-01
Zama2247ACTIVEC15350350FULL CAPACITY (REQ)2029-12-01
ROSAMOND WEST SOLAR506ACTIVEC01300256PARTIAL CAPACITYEXECUTED2029-03-31
NORTH ROSAMOND SOLAR643RACTIVEC03153100PARTIAL CAPACITYEXECUTED2026-06-01
GASKELL WEST1074ACTIVEC0712562FULL CAPACITYEXECUTED2026-12-30
Voyager Energy Storage2321ACTIVEC15101101FULL CAPACITY (REQ)2027-06-01
KEYHOLE WIND1784ACTIVEC131000FULL CAPACITYEXECUTED2028-06-28
GOLDEN FIELDS SOLAR1212ACTIVEC089292FULL CAPACITYEXECUTED2026-12-01
CAMINO SOLAR1419ACTIVEC105411FULL CAPACITYEXECUTED2027-12-31
SOLAR STAR 31322ACTIVEC092423FULL CAPACITYEXECUTED2026-07-07
SOLAR STAR 41323ACTIVEC092423FULL CAPACITYEXECUTED2026-07-07
AV SOLAR ONE PROJECT412COMPLETEDTC2500FULL CAPACITYEXECUTED
WILLY 91319COMPLETEDC09250164FULL CAPACITYEXECUTED
GARLAND971COMPLETEDC0620088FULL CAPACITYEXECUTED
MANZANA WIND20COMPLETEDAMEND 391890
RE ASTORIA746COMPLETEDC041750FULL CAPACITYEXECUTED
ANTELOPE VALLEY COMPLEX1215COMPLETEDC0815070FULL CAPACITYEXECUTED
CATALINA SOLAR602COMPLETEDC021450FULL CAPACITYEXECUTED
PACIFIC WIND73COMPLETEDSERIAL LGIP1410EXECUTED
TROPICO SOLAR1329COMPLETEDC0911040FULL CAPACITYEXECUTED
ROSAMOND SOUTH EAST1211COMPLETEDC0810292FULL CAPACITYEXECUTED
AVALON HYBRID84COMPLETEDSERIAL LGIP1000FULL CAPACITYEXECUTED
WILLOW SPRINGS 2643AJCOMPLETEDC031000FULL CAPACITYEXECUTED
WILLOW SPRINGS SOLAR 41217COMPLETEDC087575FULL CAPACITYEXECUTED
WILLOW SPRINGS SOLAR 31076COMPLETEDC075050FULL CAPACITYEXECUTED
CYCLONE SOLAR1327COMPLETEDC094025FULL CAPACITYEXECUTED
KINGBIRD SOLAR A (FKA AV SOLAR RANCH 2-A)795COMPLETEDC04200FULL CAPACITYEXECUTED
KINGBIRD SOLAR B (FKA AV SOLAR RANCH 2-B796COMPLETEDC04200FULL CAPACITYEXECUTED
RE GARLAND 1680COMPLETEDFT30ENERGY ONLY
ALTA 12450WITHDRAWNSERIAL LGIP1,15002013-05-302008-11-26
ALTA Q175 (FKA ALTA 11)175WITHDRAWNTC6500FULL CAPACITY2017-12-312015-06-12
MOJAVE SOLEIL II440WITHDRAWNSERIAL LGIP50002011-12-312008-11-26
RRG SOLAR643PWITHDRAWNC034800FULL CAPACITY2014-10-302010-11-16
METEORITE SOLAR1788WITHDRAWNC13400200FULL CAPACITY2024-12-012021-04-26
VENADO VALLEY 11794WITHDRAWNC13300300FULL CAPACITY2024-09-302021-03-12
RESONATE2057WITHDRAWNC14300300FULL CAPACITY2024-06-302022-12-02
EON VISION WIND1333WITHDRAWNC092780FULL CAPACITY2019-12-312017-02-28
VISION WIND1426WITHDRAWNC102750FULL CAPACITY2023-04-152019-10-31
GASKELL SOLAR GENERATING STATION329WITHDRAWNSERIAL LGIP26402012-08-012008-11-26
BRIGHTSOURCE AV PROJECT643ABWITHDRAWNC032600FULL CAPACITY2015-01-012010-07-26
ROSY 91318WITHDRAWNC092500FULL CAPACITY2020-12-312017-05-02
ARROW1509WITHDRAWNC1125029FULL CAPACITY2024-10-012019-03-11
DRACO SOLAR1630WITHDRAWNC12250125FULL CAPACITY2023-12-012019-07-15
LINWOOD SOLAR FARM1332WITHDRAWNC09205200FULL CAPACITY2019-06-012017-04-19
LONGSPUR 111514WITHDRAWNC1117551FULL CAPACITY2022-12-302019-03-12
ALTA Q97 (FKA ALTA 5 AND LUCCHESE)97WITHDRAWNSERIAL LGIP16002016-12-312014-09-29
MOJAVALON I603WITHDRAWNC021460FULL CAPACITY2013-07-012010-04-20
FAIRMONT SOLAR GENERATING STATION455WITHDRAWNSERIAL LGIP14102013-10-012011-03-22
DESERT VIEW SUNTOWER513WITHDRAWNC011410FULL CAPACITY2017-12-312015-11-05
ALTA Q153 (FKA ALTA 7)153WITHDRAWNSERIAL LGIP1000IN PROGRESS2016-12-312014-09-29
WILLOW SOLAR849WITHDRAWNC041000FULL CAPACITY2016-12-312012-04-03
GOLDEN FIELDS SOLAR 31213WITHDRAWNC081000FULL CAPACITY2018-06-302015-07-08
KEYHOLE WIND 21785WITHDRAWNC131000FULL CAPACITY2024-12-012020-06-25
APOLLO SOLAR672WITHDRAWNC04510FULL CAPACITY2013-03-312011-07-06
ROSE MEADOW WIND BANK1075WITHDRAWNC075050FULL CAPACITY2022-06-012015-04-01
GOLDEN OASIS967WITHDRAWNC06330FULL CAPACITYEXECUTED2021-04-302019-04-03
GOLDEN PRISM 1214WITHDRAWNC0866FULL CAPACITY2020-01-312019-03-18

TPD allocation requests at this node (7)

CAISO Transmission Plan Deliverability allocation results, joined on queue position through all three sheets of the public report (a request whose project has since withdrawn still appears). 2024 rows carry no MW. Groups: A = executed power purchase agreement requiring FCDS, or an LSE serving its own load; B = shortlisted for, or actively negotiating, a power purchase agreement; C = already in commercial operation for the capacity seeking TP deliverability; D = no PPA; electing the Section 8.9.2.3 (financial-security) path.

tpd_yearqueue_idproject_nameallocation_groupmw_requestedallocation_pctmw_allocatedstatus
2025506ROSAMOND WEST SOLARA33100%33FCDSA
2025506ROSAMOND WEST SOLARB33100%33FCDSA
20251211ROSAMOND SOUTH EASTC10062%62PCDSA
20241784KEYHOLE WINDA100%FCDSA
20242055EUISMODB100%FCDSA
20242055EUISMODB100%FCDSA
20242089GREASEWOOD ENERGY STORAGED100%FCDSA

Geocode provenance

geo_method
exact
geo_score
1.00
osm_name
Whirlwind Substation
lat, lon
34.85785, -118.43733

All metrics

metricvaluedefinition
legacy_active_mw2,472active MW in the public report (C14 and earlier)
c15_active_mw801active MW in the Cluster 15 report
operating_mw2,120completed MW in the public report
pipeline_storage_mw2,575storage MW inside legacy_active_mw + c15_active_mw
operating_storage_mw604storage MW inside operating_mw (completed, public report)
wd_recent_mw300withdrawn in the last 5 years (both reports)
wd_recent_storage_mw300storage MW of those rows — each project's storage components capped at its net-to-grid figure; a handful of filings report net-to-grid as 0 and keep the component MW, so this can exceed the row above at 3 nodes.
wd_post_phase2_mw1,365withdrew AFTER Phase II / Facilities Study results (public report only)
p2_reached_mw5,954MW of projects that received Phase II / Facilities Study results here (public report, any sheet)
p2_withdrawn_mw1,365of those, MW that then withdrew (== wd_post_phase2_mw)
p2_attrition0.23p2_withdrawn_mw / p2_reached_mw — share of studied MW that left with results in hand
committed_mw2,472ACTIVE MW holding an executed interconnection agreement (public report)
churn_n33projects behind storage_churn (withdrawn recent + queued + operating)
c15_n3projects behind c15_survival
p2_n35projects behind p2_attrition
eia_plants6operable EIA-860 plants within 5 km of the node's mapped position (positioned nodes only)
eia_nameplate_mw706their nameplate MW, all technologies (EIA-860 Generator file, Operable sheet)
eia_storage_mwh147battery energy capacity among them (EIA-860 Energy Storage file), as reported
eia_storage_1h_mw147storage MW at units whose reported MWh is no more than their MW (one hour or less); shown with 'duration not established' because the value may reflect how the form was filled
eia_proposed_mw186nameplate MW in EIA-860's Proposed sheet within the same radius (planned / under construction)
wd_alltime_mw7,115every withdrawn MW since 2006 (includes dead wind/solar-era projects)
storage_churn0.09wd_recent_storage_mw / (active + operating storage MW) — the one to quote
churn_alltime1.32wd_alltime_mw / (pipeline + operating MW) — historical color only
c15_survival1.00c15_active / (c15_active + c15_withdrawn)
c15_fcds_req_mw801C15 active MW that requested Full Capacity Deliverability Status (requested, not allocated)
tpd25_projects2projects at the node that sought TPD in CAISO's 2025 allocation cycle
tpd25_req_mw166MW at the node that sought TPD in CAISO's 2025 allocation cycle
tpd25_alloc_mw128MW allocated in that cycle (requested × allocation %)
tpd25_denied_mw0MW requested by rows that received 0 %
tpd25_unalloc_mw38requested minus allocated: MW refused outright PLUS the remainder left by partial allocations — quote this for 'what the developer did not get'
tpd25_unknown_mw0MW requested by rows with no allocation percentage in the file; 0 today
tpd25_req_A_mw33of tpd25_req_mw, requested in allocation group A: executed PPA (or LSE own load)
tpd25_req_B_mw33of tpd25_req_mw, requested in allocation group B: shortlisted / negotiating a PPA
tpd25_req_C_mw100of tpd25_req_mw, requested in allocation group C: already in commercial operation
tpd25_req_D_mw0of tpd25_req_mw, requested in allocation group D: no PPA, Section 8.9.2.3 path
tpd25_denied_A_mw0of tpd25_denied_mw, refused at 0 % in group A
tpd25_denied_B_mw0of tpd25_denied_mw, refused at 0 % in group B
tpd25_denied_C_mw0of tpd25_denied_mw, refused at 0 % in group C
tpd25_denied_D_mw0of tpd25_denied_mw, refused at 0 % in group D
tpd25_denied_ppa_mw0refused MW in groups A + B: contracted or shortlisted projects that did not get deliverability; the refusal that matters
tpd24_fcdsa_projects3projects at the node allocated Full Capacity in the 2024 cycle
lcr_statusCAISO Local Capacity Area (Resource Adequacy geography): 'in <area>' or 'outside <area>' as the LCT report's boundary lists state it; blank = not encoded, never 'outside every area'
lcr_sub_areasub-area / load pocket within that area, when the LCT report delineates it
wdat_active_projects0active WDAT requests at the same substation (WDAT = distribution-level queue at the same substation, PG&E file today; not CAISO deliverability)
wdat_active_mw0MW of active WDAT (distribution-level) requests at the same substation (PG&E file today)
wdat_active_storage_mw0storage MW attributed from wdat_active_mw — an assumption: the PG&E file publishes one MW figure per request, so storage-only requests count in full and solar+storage requests count at half (160 of 1,011 active requests carry storage; 362 of their 479 MW is attributed as storage).
wdat_inservice_mw0WDAT MW already in service at that substation
wdat_withdrawn_mw0WDAT MW withdrawn at that substation (all-time in the file)
wdat_ft_over_cap_n0active Fast Track requests above the 5 MW Fast Track ceiling — held out of wdat_active_*
wdat_ft_over_cap_mw0MW of those held-out rows, as posted; cause not established

No figure on this site states a cause. CAISO files carry no withdrawal reason beyond "IC Request".

Screening tool, not engineering advice. Built from public filings by an engineer who is not a licensed PE. Verify every figure against the source filing named in its row before you rely on it for any decision. No warranty of any kind. Not affiliated with CAISO, EIA, or any utility. No engineering services are offered.