NORTH ROSAMOND SOLAR

CAISO-643RBetaActiveSolarBatteryCAISOLBNL + Live

253 MW hybrid in Kern, CA · In queue since July 2010 · Proposed COD June 2026

BA: CISOISO/RTO: CAISONERC: WECCRC: RCW

253 MW

Capacity

Components

Solar + Battery

16 years

In Queue

IA Executed

IA Phase

Signed Dec 2014

Interconnection

Queue → IA

4y 5m

IA → COD

11y 6m

Total Duration

4y 5m

Schedule

1 months past proposed COD

Study Phase

C03

Construction75%

Queue EntryJul 31, 2010

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 AgreementDec 11, 2014

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–30 months

Commercial Operation

Proposed COD: 2026-06-01

Cross-source intelligence

Beta

High confidence·5 sources·as of 2026-06-01

Expected COD

2019-06-19

Queue date 3+ years staleQueue: 2026-06-01

Developer

Duke Energy Renewables

Recent ownership change

Status

Online

Online — operational since June 2019, 150 MW solar with 15-year PPA

Financing

Secured

Acquisition financing completed April 2019 by Duke Energy Renewables from Clearway Energy Group; minority stake later sold to John Hancock as part of ~1.2GW portfolio

Ownership history

2019-04·Clearway Energy Group→Duke Energy Renewablessource

Key milestones

IA executedDec 11, 2014

Interconnection Agreement executed per LBNL queue data

source

Ownership changeApr 22, 2019

Duke Energy Renewables completed acquisition of 150-MW project from Clearway Energy Group

source

COD targetJun 19, 2019Most recent

Commercial operation achieved for 150-MW solar facility in Kern County

source

About

The North Rosamond Solar project is a proposed 253 MW hybrid solar and battery energy storage project in Kern County, California. The development project consists of a 153 MW solar component and a 100 MW battery energy storage system. It is located within the CAISO region and interconnects with Southern California Edison (SCE) at the Whirlwind Sub 230 kV Bus.

The project, listed in the CAISO interconnection queue as CAISO-643R, entered the queue on July 31, 2010, and has a proposed commercial operation date of June 1, 2026. The Interconnection Agreement (IA) was executed on December 11, 2014. The North Rosamond Solar project has been the subject of recent news coverage.

Generated from interconnection queue and public data sources

CAISO Queue

Development Risk

Realization history for this asset — final cost vs plan, COD slip vs original date, and construction duration vs cohort. Retrospective context for the operating risk view above. Powered by InfraSure's development-stage modeling stack.

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See the full development-risk decomposition for this project.

Final cost vs plan

COD vs original date

Construction duration vs cohort

Project Details

State

County

Kern

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

—

Utility

SCE

Entity

CAISO

Service Type

NRIS

Point of Interconnection

Whirlwind Sub 230 kV Bus

Data Source

LBNL + Live

TransactionAcquisitionDuke Energy | News Center · 2019-04-22

OfftakerDuke Energy RenewablesDuke Energy | News Center · 2019-04-22

PPA structurePhysicalDuke Energy | News Center · 2019-04-22

PPA term15 yearsDuke Energy | News Center · 2019-04-22

Risk Analytics

Composite operating risk view for this asset — climate hazards across its remaining operating life, observed 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

Solar153 MW · 60%

Battery100 MW · 40%

Generation Forecast

Forward generation outlook — 10-year P50 trajectory accounting for degradation, observed curtailment, and market conditions, 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

Degradation-adjusted CF

Weather + policy scenarios

Financial Forecast

Forward revenue, DSCR bands, and refinancing risk for this asset — 10-year cashflow projected under price, demand, 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 cashflow horizon

P10 / P50 / P90 DSCR bands

Price + demand + policy scenarios

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.

Insights & Articles (1)Beta

Last updated 2026-03-26

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NORTH ROSAMOND SOLAR (CAISO-643R) — Project Summary

NORTH ROSAMOND SOLAR