BELLEFIELD 3 SOLAR FARM

CAISO-1779BetaActiveSolarBatteryCAISOLBNL + Live

300 MW hybrid in Kern, CA · In queue since April 2020 · Proposed COD February 2028

BA: CISOISO/RTO: CAISONERC: WECCRC: RCW

300 MW

Capacity

Components

Solar + Battery

6y 3m

In Queue

IA Executed

IA Phase

Signed Jun 2023

Interconnection

Queue → IA

3y 2m

IA → COD

4y 8m

Total Duration

3y 2m

Study Phase

C13

Construction75%

Queue EntryApr 15, 2020

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 AgreementJun 28, 2023

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–30 months

Commercial Operation

Proposed COD: 2028-02-27

Cross-source intelligence

Beta

High confidence·6 sources·as of 2026-06-01

Expected COD

2026

Queue date 1–2 years staleQueue: 2028-02-27

Developer

AES Corporation

Recent ownership change

Status

Active

Active — Phase 1 (Bellefield 1) completed construction June 2025 and entering operation H2 2025; Phase 2 construction on track for 2026 completion

Financing

Secured

15-year PPA with Amazon secured; acquisition by AES from Avantus completed June 2023

Ownership history

2023-06·Avantus→AES Corporationsource

Key milestones

Ownership changeJun 2023

AES Corporation acquired 2GW Bellefield project from Avantus

source

IA executedJun 28, 2023

Interconnection Agreement executed with CAISO

source

COD target2025

Bellefield 1 entering operation second half 2025

source

GroundbreakingJun 11, 2025

Bellefield 1 (1000MW phase) construction completed, 700 union jobs created

source

COD target2026Most recent

Phase 2 construction on track to complete 2026

source

Project lifecycle

as of 2023-06-07

PhaseIA executedPV Tech · 2023-06-07

OperationalNoPV Tech · 2023-06-07

TechnologyHybridPV Tech · 2023-06-07

DeveloperAvantusPV Tech · 2023-06-07

Tax-equity partnerAlberta Investment Management CorporationPV Tech · 2023-06-07

About

The Bellefield 3 Solar Farm is a proposed 300 MW hybrid solar and battery energy storage project in Kern County, California. The development project, which consists of 150 MW of solar photovoltaic generation and 150 MW of battery storage, is located within the California Independent System Operator (CAISO) region and interconnects with Southern California Edison (SCE) at the Windhub Substation 230kV.

The project, identified by queue ID CAISO-1779, entered the CAISO interconnection queue on April 15, 2020, and has a proposed commercial operation date of April 1, 2027. An Interconnection Agreement (IA) for the project was executed on June 28, 2023. The Bellefield 3 Solar Farm project has been mentioned in recent news coverage.

Generated from interconnection queue and public data sources

CAISO Queue

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.

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See the full development-risk decomposition for this project.

P(COD by stated date)

Financing close probability

EPC + tax-equity counterparty

Project Details

State

County

Kern

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

—

Utility

SCE

Entity

CAISO

Service Type

ERIS

Point of Interconnection

Windhub Substation 230kV

Data Source

LBNL + Live

DeveloperAvantusPV Tech · 2023-06-07

TransactionAcquisitionPV Tech · 2023-06-07

OfftakerAES CorporationPV Tech · 2023-06-07

PPA structurePhysicalPV Tech · 2023-06-07

PPA term15 yearsPV Tech · 2023-06-07

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.

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See the full risk decomposition + scenarios for this project.

Climate hazards (8+)

Generation variability (P10/P50/P90)

Offtake + transmission counterparty

Technology

Solar150 MW · 50%

Battery150 MW · 50%

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_SP15_GEN-APND
Hub Confidence: MEDIUM
Nearest Node (Estimated): ALTA6B2_7_N003
POI Substation: Windhub 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.

Insights & Articles (1)Beta

Last updated 2026-03-26

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BELLEFIELD 3 SOLAR FARM (CAISO-1779) — Project Summary

BELLEFIELD 3 SOLAR FARM