IMPERIAL VALLEY SUBSTATION

IMPERIAL (CA) · SDGE · node key IMPERIAL VALLEY · 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?

875 MW (n=3)

queued ahead of a new request (legacy + C15)

875 MW (n=3)

with an executed interconnection agreement · public report; C15 has no IA yet

1,347 MW (n=9)

operating at this node

0 MW

Cluster 15 requests seeking full capacity

Already operating within 5 km (EIA-860): 3 plants; 478 MW nameplate; 331 MW / 724 MWh storage (200 MW of it at units reporting one hour or less; duration not established for those); oldest unit 2013; 299 MW proposed. Technology: Batteries 331; Solar Photovoltaic 147. Operators: Big Rock ESS Assets, LLC; RWE Clean Energy; Southern Power Co. Owners: Campo Verde Solar, LLC. 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?

5,453 MW (n=23)

received Phase II / Facilities Study results here · any sheet, public report

3,231 MW (n=11)

of that, withdrew with results in hand

0.59 (n=23)

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?

777 MW (n=3)

2025 TPD requested at this node

0 MW

allocated

177 MW

refused at 0 % — contracted / shortlisted (groups A+B)

600 MW

refused at 0 % — no PPA (group D)

1 / 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?

Local Capacity Area: San Diego-Imperial Valley Final 2027 LCT Report [2026-04-29]

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?

2,435 MW (n=7)

withdrawn since 2022 (both reports)

2,385 MW

of that, storage

2.45 (n=19)

storage churn · withdrawn storage ÷ queued + operating storage

0.00 (n=1)

Cluster 15 survival · active ÷ (active + withdrawn)

12,100 MW (n=40)

all-time withdrawn since 2006 · mostly wind/solar-era; colour, not signal

2027-01-18 to 2032-06-01

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 (52)

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_name	queue_position	sheet_status	cluster	net_mw	storage_mw	deliverability	ia_status	cod	withdrawn_date
SILVER RIDGE MOUNT SIGNAL	124	ACTIVE	SERIAL LGIP	600	150	PARTIAL CAPACITY	EXECUTED	2027-06-01
SUNRISE BUTTE	1667	ACTIVE	C12	150	150	PARTIAL CAPACITY	EXECUTED	2027-01-18
LECONTE ENERGY STORAGE	1175	ACTIVE	C08	125	125	PARTIAL CAPACITY	EXECUTED	2032-06-01
BATERIA DEL SUR	1531	COMPLETED	C11	350	350	FULL CAPACITY	EXECUTED
BIG ROCK SOLAR FARM	1166	COMPLETED	C08	200	200	PARTIAL CAPACITY	EXECUTED
IMPERIAL VALLEY WEST	608	COMPLETED	C02	150	0	FULL CAPACITY	EXECUTED
CAMPO VERDE SOLAR (FKA USS WIXOM SOLAR 1)	590	COMPLETED	C02	147	0	FULL CAPACITY	EXECUTED
IV SUBSTATION SOUTH	510	COMPLETED	C01	130	0	FULL CAPACITY	EXECUTED
CENTINELA SOLAR ENERGY	442	COMPLETED	TC	125	0	FULL CAPACITY	EXECUTED
WISTARIA RANCH SOLAR ENERGY	429	COMPLETED	TC	100	0	FULL CAPACITY	EXECUTED
BLUE HORNET SOLAR	838	COMPLETED	C04	100	0	FULL CAPACITY	EXECUTED
CENTINELA SOLAR ENERGY EXPANSION (45 MW)	643AM	COMPLETED	C03	45	0	FULL CAPACITY	EXECUTED
BAJANORTE WIND FACILITY	164	WITHDRAWN	SERIAL LGIP	1,000	0			2010-10-01	2008-11-19
VIENTO MEXICANA	168	WITHDRAWN	SERIAL LGIP	1,000	0			2011-12-31	2011-03-31
IMPERIAL VALLEY GENERATION PROJECT	604	WITHDRAWN	C02	600	0	FULL CAPACITY		2014-04-01	2010-11-24
YUHA DESERT BATTERY STORAGE	2176	WITHDRAWN	C14	600	600	ENERGY ONLY		2031-11-05	2026-05-28
SANTA CATARINA WIND	764	WITHDRAWN	C04	508	0	FULL CAPACITY		2014-12-31	2012-03-13
MEXICO WIND	178B	WITHDRAWN	SERIAL LGIP	500	0			2010-06-15	2011-03-31
RE AUSTIN	643U	WITHDRAWN	C03	500	0	FULL CAPACITY		2014-01-30	2011-09-09
VOLTA DE MEXICALI	1664	WITHDRAWN	C12	500	500	ENERGY ONLY		2035-03-10	2025-09-06
BLACK ROCK 1,2,3,4, & 5,6	677	WITHDRAWN	C04	470	0	FULL CAPACITY		2015-06-16	2012-03-20
YUHA BASIN HYBRID SOLAR ENERGY PROJECT	405	WITHDRAWN	SERIAL LGIP	450	0			2012-12-31	2008-11-26
WESTSIDE CANAL ENERGY CENTER	1437	WITHDRAWN	C10	425	400	ENERGY ONLY		2021-12-31	2020-06-10
HICKORY SOLAR FARM	713	WITHDRAWN	C04	400	0	FULL CAPACITY		2014-07-01	2011-06-16
SALTON SOLAR	1666	WITHDRAWN	C12	400	211	FULL CAPACITY		2023-12-01	2020-03-04
BIG HORN ENERGY STORAGE	1827	WITHDRAWN	C13	400	400	FULL CAPACITY		2024-07-01	2024-02-21
KINGSLEY SOLAR FARM	1665	WITHDRAWN	C12	360	360	ENERGY ONLY	EXECUTED	2030-01-31	2026-08-25
DREW ROAD GENERATION	984	WITHDRAWN	C06	344	0	FULL CAPACITY		2018-01-01	2013-07-15
SES SOLAR TWO)	78	WITHDRAWN	SERIAL LGIP	300	0			2012-05-31	2012-03-02
AUBANEL I WIND PROJECT	643B	WITHDRAWN	C03	300	0	ENERGY ONLY		2012-06-30	2010-11-26
IMPERIAL SOLAR 1	414	WITHDRAWN	SERIAL LGIP	280	0			2012-07-01	2008-11-21
SOLAR DE MEXICALI	2162	WITHDRAWN	C14	275	275	FULL CAPACITY		2030-03-16	2026-04-07
SILVER LEAF SOLAR	643V	WITHDRAWN	C03	250	0	FULL CAPACITY		2013-09-30	2011-09-09
IMPERIAL SOLEIL	169	WITHDRAWN	SERIAL LGIP	212	0			2011-12-31	2008-11-26
LAGUNA SALADA PV POWER PLANT	961	WITHDRAWN	C06	201	0	FULL CAPACITY	EXECUTED	2020-04-03	2019-08-01
MOUNT SIGNAL SOLAR FARM	561	WITHDRAWN	C02	200	0	FULL CAPACITY		2014-12-01	2013-07-11
MOUNT SIGNAL SOLAR FARM II	643AO	WITHDRAWN	C03	200	0	FULL CAPACITY		2014-06-01	2011-08-11
MOUNT SIGNAL SOLAR FARM III	735	WITHDRAWN	C04	200	0	FULL CAPACITY		2014-06-01	2011-12-21
CARDINAL STORAGE	1658	WITHDRAWN	C12	200	200	ENERGY ONLY		2028-10-12	2022-04-18
ACORN GREENWORKS	667	WITHDRAWN	C04	150	0	FULL CAPACITY	EXECUTED	2021-12-31	2018-06-19
SILVERTREE GREENWORKS	766	WITHDRAWN	C04	150	0	FULL CAPACITY		2014-12-31	2012-03-30
RANCHO WISTARIA SOLAR ENERGY CENTER	985	WITHDRAWN	C06	150	0	FULL CAPACITY		2016-12-31	2014-03-19
WISTARIA SOLAR 2	1436	WITHDRAWN	C10	150	0	FULL CAPACITY		2019-12-31	2017-06-05
Amberjill Energy	2213	WITHDRAWN	C15	100	50	ENERGY ONLY (REQ)		2029-07-31	2025-12-03
SONORA SOLAR GENERATING STATION	454	WITHDRAWN	SERIAL LGIP	84	0			2011-02-01	2008-11-26
YUHA BASIN SOLAR	919	WITHDRAWN	C05	75	0	FULL CAPACITY		2015-01-01	2013-03-04
SILVERLEAF SOLAR II	875	WITHDRAWN	C05	60	0	FULL CAPACITY		2014-12-31	2012-08-02
CENTINELA SOLAR ENERGY EXPANSION II - 45 MW EXPANSION	685	WITHDRAWN	C04	45	0	ENERGY ONLY		2014-09-01	2012-04-10
OCOTILLO SOL PROJECT	621	WITHDRAWN	SGIP-TC	20	0	ENERGY ONLY		2017-03-03	2016-02-16
VALLE DEL SOL	848	WITHDRAWN	C04	20	0	FULL CAPACITY		2013-12-01	2012-04-04
BCS ENERGY STORAGE	1041	WITHDRAWN	C07	20	20	FULL CAPACITY		2015-06-01	2015-01-22
CENTINELA SOLAR ENERGY FACILITY 2MWFT	1090	WITHDRAWN	FT	2	2	ENERGY ONLY		2015-01-15	2014-09-04

TPD allocation requests at this node (5)

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_year	queue_id	project_name	allocation_group	mw_requested	allocation_pct	mw_allocated	status
2025	1175	LECONTE ENERGY STORAGE	B	85	0%	0	NONE
2025	124	SILVER RIDGE MOUNT SIGNAL	B	92	0%	0	NONE
2025	2176	YUHA DESERT BATTERY STORAGE	D	600	0%	0	NONE
2024	1531	BATERIA DEL SUR	A		100%		FCDSA
2024	1531	BATERIA DEL SUR	A		100%		FCDSA

Geocode provenance

geo_method: exact
geo_score: 1.00
osm_name: Imperial Valley Substation
lat, lon: 32.71791, -115.71556

All metrics

metric	value	definition
`legacy_active_mw`	875	active MW in the public report (C14 and earlier)
`c15_active_mw`	0	active MW in the Cluster 15 report
`operating_mw`	1,347	completed MW in the public report
`pipeline_storage_mw`	425	storage MW inside legacy_active_mw + c15_active_mw
`operating_storage_mw`	550	storage MW inside operating_mw (completed, public report)
`wd_recent_mw`	2,435	withdrawn in the last 5 years (both reports)
`wd_recent_storage_mw`	2,385	storage 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_mw`	3,231	withdrew AFTER Phase II / Facilities Study results (public report only)
`p2_reached_mw`	5,453	MW of projects that received Phase II / Facilities Study results here (public report, any sheet)
`p2_withdrawn_mw`	3,231	of those, MW that then withdrew (== wd_post_phase2_mw)
`p2_attrition`	0.59	p2_withdrawn_mw / p2_reached_mw — share of studied MW that left with results in hand
`committed_mw`	875	ACTIVE MW holding an executed interconnection agreement (public report)
`churn_n`	19	projects behind storage_churn (withdrawn recent + queued + operating)
`c15_n`	1	projects behind c15_survival
`p2_n`	23	projects behind p2_attrition
`eia_plants`	3	operable EIA-860 plants within 5 km of the node's mapped position (positioned nodes only)
`eia_nameplate_mw`	478	their nameplate MW, all technologies (EIA-860 Generator file, Operable sheet)
`eia_storage_mwh`	724	battery energy capacity among them (EIA-860 Energy Storage file), as reported
`eia_storage_1h_mw`	200	storage 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_mw`	299	nameplate MW in EIA-860's Proposed sheet within the same radius (planned / under construction)
`wd_alltime_mw`	12,100	every withdrawn MW since 2006 (includes dead wind/solar-era projects)
`storage_churn`	2.45	wd_recent_storage_mw / (active + operating storage MW) — the one to quote
`churn_alltime`	5.45	wd_alltime_mw / (pipeline + operating MW) — historical color only
`c15_survival`	0.00	c15_active / (c15_active + c15_withdrawn)
`c15_fcds_req_mw`	0	C15 active MW that requested Full Capacity Deliverability Status (requested, not allocated)
`tpd25_projects`	3	projects at the node that sought TPD in CAISO's 2025 allocation cycle
`tpd25_req_mw`	777	MW at the node that sought TPD in CAISO's 2025 allocation cycle
`tpd25_alloc_mw`	0	MW allocated in that cycle (requested × allocation %)
`tpd25_denied_mw`	777	MW requested by rows that received 0 %
`tpd25_unalloc_mw`	777	requested minus allocated: MW refused outright PLUS the remainder left by partial allocations — quote this for 'what the developer did not get'
`tpd25_unknown_mw`	0	MW requested by rows with no allocation percentage in the file; 0 today
`tpd25_req_A_mw`	0	of tpd25_req_mw, requested in allocation group A: executed PPA (or LSE own load)
`tpd25_req_B_mw`	177	of tpd25_req_mw, requested in allocation group B: shortlisted / negotiating a PPA
`tpd25_req_C_mw`	0	of tpd25_req_mw, requested in allocation group C: already in commercial operation
`tpd25_req_D_mw`	600	of tpd25_req_mw, requested in allocation group D: no PPA, Section 8.9.2.3 path
`tpd25_denied_A_mw`	0	of tpd25_denied_mw, refused at 0 % in group A
`tpd25_denied_B_mw`	177	of tpd25_denied_mw, refused at 0 % in group B
`tpd25_denied_C_mw`	0	of tpd25_denied_mw, refused at 0 % in group C
`tpd25_denied_D_mw`	600	of tpd25_denied_mw, refused at 0 % in group D
`tpd25_denied_ppa_mw`	177	refused MW in groups A + B: contracted or shortlisted projects that did not get deliverability; the refusal that matters
`tpd24_fcdsa_projects`	1	projects at the node allocated Full Capacity in the 2024 cycle
`lcr_status`	in San Diego-Imperial Valley	CAISO 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_area`		sub-area / load pocket within that area, when the LCT report delineates it
`wdat_active_projects`	0	active WDAT requests at the same substation (WDAT = distribution-level queue at the same substation, PG&E file today; not CAISO deliverability)
`wdat_active_mw`	0	MW of active WDAT (distribution-level) requests at the same substation (PG&E file today)
`wdat_active_storage_mw`	0	storage 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_mw`	0	WDAT MW already in service at that substation
`wdat_withdrawn_mw`	0	WDAT MW withdrawn at that substation (all-time in the file)
`wdat_ft_over_cap_n`	0	active Fast Track requests above the 5 MW Fast Track ceiling — held out of wdat_active_*
`wdat_ft_over_cap_mw`	0	MW 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.