SAPPHIRE SOLAR

CAISO-1764BetaActiveSolarBatteryCAISOLBNL + Live

234 MW hybrid in Riverside, CA · In queue since April 2020 · Proposed COD December 2034

BA: CISOISO/RTO: CAISONERC: WECCRC: RCW

234 MW

Capacity

Components

Solar + Battery

6y 3m

In Queue

IA Executed

IA Phase

Signed Mar 2024

Interconnection

Queue → IA

3y 11m

IA → COD

10y 9m

Total Duration

3y 11m

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 AgreementMar 8, 2024

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–30 months

Commercial Operation

Proposed COD: 2034-12-31

Cross-source intelligence

Beta

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

Expected COD

—

Developer

EDF Renewables North America

Filed as Sapphire Solar, LLC

Status

Cancelled

Active in queue (IA Executed 2024-03-08) but PPA with SCPPA terminated April 2025 due to rising costs — project lacks offtaker

Financing

Cancelled

PPA with Southern California Public Power Authority (20-year, 117 MWac) terminated April 2025 — no replacement offtaker announced

Key milestones

IA executedMar 8, 2024

Interconnection Agreement executed with CAISO

source

cancelledApr 3, 2025Most recent

PPA with SCPPA terminated due to rising costs

source

About

The Sapphire Solar project is a proposed 243.29 MW hybrid solar and battery energy storage project located in Riverside County, California. The development project consists of a 126.29 MW solar component and a 117 MW battery energy storage system. It is interconnected to the CAISO grid at the Red Bluff Substation 230kV and is in the CAISO interconnection queue as entry CAISO-1764, with a queue entry date of April 15, 2020. The project's proposed commercial operation date is December 31, 2034, and the Interconnection Agreement (IA) has been executed.

The Sapphire Solar project has been the subject of recent news coverage, with six articles categorized as regulatory (3), deals (2), and industry (1).

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.

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

County

Riverside

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

—

Utility

SCE

Entity

CAISO

Service Type

NRIS

Point of Interconnection

Red Bluff Substation 230kV

Data Source

LBNL + Live

DeveloperEDF Renewables North AmericaSaur Energy · 2023-03-23

TransactionPPASaur Energy · 2023-03-23

OfftakerSouthern California Public Power AuthoritySaur Energy · 2023-03-23

PPA structurePhysicalSaur Energy · 2023-03-23

PPA term20 yearsSaur Energy · 2023-03-23

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

Solar117 MW · 50%

Battery117 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): OBERON_7_N122
POI Substation: Red Bluff 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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Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.

SAPPHIRE SOLAR (CAISO-1764) — Project Summary

SAPPHIRE SOLAR