HOLMAN (CAISO-1889) — Project Summary

Queue ID
CAISO-1889
Capacity
2281.985 MW
Technology
Wind+Battery
Status
active
Location
Monterey, CA
Region
CAISO
Developer
IA Status
IA Executed

HOLMAN

CAISO-1889BetaActiveWindBatteryCAISOLBNL + Live

2,281.985 MW hybrid in Monterey, CA · In queue since April 2021 · Proposed COD February 2034

BA: CISOISO/RTO: CAISONERC: WECCRC: RCW

2,281.985 MW

Capacity

2

Components

Wind + Battery

5y 3m

In Queue

IA Executed

IA Phase

Signed Aug 2025

Interconnection

Queue → IA

4y 4m

IA → COD

8y 6m

Total Duration

4y 4m

Study Phase

C14

Construction75%
Queue EntryApr 15, 2021

Interconnection request submitted to ISO/RTO

Cluster Study (Phase I/II)

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

Typical: 36–48 months (IR to IA)

Interconnection AgreementAug 18, 2025

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 24–36 months

Commercial Operation

Proposed COD: 2034-02-17

Cross-source intelligence
Beta
High confidence·4 sources·as of 2026-06-01
Expected COD
Feb 2034
From queue filing
Developer
Clearway Energy Group
Confirmed
Status
Active
Active — offtake exclusivity secured with Central Coast CCA (Nov 2024), IA executed Aug 2025, construction timeline TBD
Financing
In progress
Offtake exclusivity agreement signed with Central Coast Community Energy (Nov 2024) for 3GWh BESS; full PPA and financing close not yet announced
Key milestones
Financing closeNov 2024

Energy Storage Exclusivity Agreement signed with Central Coast Community Energy for 3GWh BESS

source
IA executedAug 18, 2025Most recent

Interconnection Agreement executed with CAISO

source
About

The HOLMAN project is a proposed wind and battery hybrid project located in Monterey County, California. The development project, with a total capacity of 2281.99 MW, consists of a 1525.17 MW wind component and a 756.81 MW battery energy storage system. The project is in the California Independent System Operator (CAISO) interconnection queue as entry CAISO-1889, with an interconnection queue date of April 15, 2021.

The proposed commercial operation date for the HOLMAN project is February 17, 2034. The project's interconnection status is currently in the System Impact Study phase. The point of interconnection is the Moss Landing 500 kV substation, and the interconnecting utility is PG&E. The project has appeared in recent news coverage related to deals.

Generated from interconnection queue and public data sources

Development Risk

Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.

Available on the InfraSure platform

See the full development-risk decomposition for this project.

P(COD by stated date)
Financing close probability
EPC + tax-equity counterparty
Project Details

State

CA

County

Monterey

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

Utility

PGAE

Entity

CAISO

Service Type

NRIS

Point of Interconnection

Moss Landing 500 kV

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.

Available on the InfraSure platform

See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Technology
Wind1,525.172 MW · 67%
Battery756.813 MW · 33%
Generation Forecast

Forward generation outlook — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

10-year P50 forecast
First-year output estimate
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

10-year revenue projection
First-year DSCR
Financing close risk
Market Context
Approximate
ISO / RTO
CAISO
Trading Hub
TH_ZP26_GEN-APND
Hub Confidence
LOW

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.

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InfraSure platform

Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.