BELLEFIELD 2 SOLAR FARM (CAISO-1631) — Project Summary

Queue ID
CAISO-1631
Capacity
1000 MW
Technology
Solar+Battery
Status
active
Location
Kern, CA
Region
CAISO
Developer
IA Status
IA Executed

BELLEFIELD 2 SOLAR FARM

CAISO-1631BetaActiveSolarBatteryCAISOLBNL + Live

1,000 MW hybrid in Kern, CA · In queue since April 2019 · Proposed COD August 2026

BA: CISOISO/RTO: CAISONERC: WECCRC: RCW

1,000 MW

Capacity

2

Components

Solar + Battery

7y 3m

In Queue

IA Executed

IA Phase

Signed Feb 2021

Interconnection

Queue → IA

1y 10m

IA → COD

5y 6m

Total Duration

1y 10m

Study Phase

C12

Construction75%
Queue EntryApr 15, 2019

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 AgreementFeb 7, 2021

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–30 months

Commercial Operation

Proposed COD: 2026-08-01

Cross-source intelligence
Beta
High confidence·7 sources·as of 2026-06-01
Expected COD
Apr 2027
Queue date 1–2 years staleQueue: 2026-08-01
Developer
AES Corporation
From queue filing
Status
Active
Active — Phase 1 (Bellefield 1, 1000MW) completed June 2025; Phase 2 (Bellefield 2, 1000MW) construction targeting April 2027 COD per WECC
Financing
Secured
15-year PPA with Amazon secured; Bellefield 1 construction completed June 2025 demonstrates financing execution for overall 2GW program
Key milestones
IA executedFeb 7, 2021

Interconnection Agreement executed with CAISO

source
COD targetJun 11, 2025

Bellefield 1 (Phase 1, 1000MW) construction completed

source
COD targetApr 2027Most recent

Bellefield 2 (Phase 2, 1000MW) targeted COD per WECC progress report

source
About

The BELLEFIELD 2 SOLAR FARM is a proposed 1000 MW hybrid solar and battery energy storage project in Kern County, California. The development project consists of 500 MW of solar photovoltaic generation and 500 MW of battery energy storage. It is located within the CAISO region and is interconnected with Southern California Edison (SCE) at the Windhub Substation 220kV.

The project, identified as CAISO-1631 in the CAISO interconnection queue, entered the queue on April 15, 2019, and has a proposed commercial operation date of September 1, 2024. An Interconnection Agreement (IA) was executed on February 7, 2021. The BELLEFIELD 2 SOLAR FARM project has been featured in recent news coverage.

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

Kern

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

Utility

SCE

Entity

CAISO

Service Type

NRIS

Point of Interconnection

Windhub Substation 220kV

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
Solar500 MW · 50%
Battery500 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.

No insights available for this project.
InfraSure platform

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