BELLEFIELD SOLAR FARM
1,000 MW hybrid in Kern, CA · In queue since April 2018 · Proposed COD August 2025
1,000 MW
Capacity
2
Components
Solar + Battery
8y 3m
In Queue
IA Executed
IA Phase
Signed May 2020
Queue → IA
2y 1m
IA → COD
5y 3m
Total Duration
2y 1m
Schedule
11 months past proposed COD
Study Phase
C11
Interconnection request submitted to ISO/RTO
CAISO uses cluster studies where projects are batched annually and studied together.
Typical: 36–48 months (IR to IA)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 18–30 months
Proposed COD: 2025-08-01
The Bellefield Solar Farm is a proposed 1000 MW hybrid solar and battery energy storage project located in Kern County, California. The development project consists of 500 MW of solar photovoltaic generation and 500 MW of battery energy storage. The project is interconnected to the CAISO grid under queue ID CAISO-1510, with an interconnection request date of April 16, 2018, and a proposed commercial operation date of August 1, 2025.
The project's interconnection agreement (IA) was executed on May 7, 2020. The point of interconnection is the Windhub Substation at 230kV. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
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.
See the full development-risk decomposition for this project.
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 230kV
Data Source
LBNL + Live
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.
See the full risk decomposition + scenarios for this project.
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.
See the full forecast + scenario decomposition for this project.
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.
See the full revenue + DSCR projection for this project.
- 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.
Last updated 2026-03-14
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Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
