Landmark

CAISO-54766BetaActiveBatteryCAISOLBNL

353.388 MW storage in San Diego, CA · In queue since April 2023 · Proposed COD December 2031

353.388 MW

Capacity

Components

Battery

3y 1m

In Queue

Not Started

IA Status

COD target: 2031

Status

Project statusUnder constructionPower Engineering · 2020-02-25

Latest milestonecontract awardedBioenergy Insight Magazine · 2026-02-28

Interconnection

Total Duration

8y 8m

In Study38%

Queue EntryApr 17, 2023

Interconnection request submitted to ISO/RTO

Cluster Study (Phase I/II)Current

CAISO uses cluster studies where projects are batched annually and studied together.

Typical: 36–48 months (IR to IA)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2031-12-02

About

Landmark is a proposed energy storage project located in San Diego County, California, with a total capacity of 353.39 MW. The development project, consisting entirely of battery storage, is being proposed within the California Independent System Operator (CAISO) region and is in the CAISO interconnection queue as entry CAISO-54766, with a queue entry date of April 17, 2023. The proposed commercial operation date is December 2, 2031. Interconnection service will be provided by San Diego Gas & Electric (SDGE) at the TALEGA 230 kV point of interconnection. The interconnection agreement (IA) status is "Not Started".

The Landmark project has been the subject of recent news coverage, with 96 articles appearing in the press. These articles primarily focus on industry trends, regulatory matters, and business deals related to the project.

Generated from interconnection queue and public data sources

CAISO Queue

Project Details

State

County

San Diego

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

—

Utility

SDGE

Entity

CAISO

Service Type

—

Point of Interconnection

TALEGA 230 kV

Data Source

LBNL

DeveloperUlster County Resource Recovery Agency±Bioenergy Insight Magazine · 2026-02-28

EPC contractorARCO/MurrayBioenergy Insight Magazine · 2026-02-28

ApplicantHecate Energy±Antelope Valley Press · 2025-10-24

AgencyMinnesota Legislature±MinnPost · 2023-02-17

RulingFinal rule±MinnPost · 2025-12-04

TransactionPPA±NucNet · 2026-01-09

Deal value$1.5B±IndexBox - Market Intelligence Platform · 2026-02-28

OfftakerMeta±NucNet · 2026-01-09

LenderCanadian Imperial Bank of CommerceIndexBox - Market Intelligence Platform · 2026-02-28

PPA structurePhysicalPOWER Magazine · 2026-01-09

PPA term20 yearsPOWER Magazine · 2026-01-09

Market Context

Approximate

ISO / RTO: CAISO
Trading Hub: TH_SP15_GEN-APND
Hub Confidence: MEDIUM
Nearest Node (Estimated): PICO_1_N001
POI Substation: Talega Substation

This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.

News & Articles (10)Beta

Last updated 2026-03-26

View all 10 articles

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Landmark (CAISO-54766) — Project Summary

Landmark