SCARLET

CAISO-1135BetaActiveSolarBatteryCAISOLBNL + Live

800 MW hybrid in Fresno, CA · In queue since April 2015 · Proposed COD December 2025

BA: CISOISO/RTO: CAISONERC: WECCRC: RCW

800 MW

Capacity

Components

Solar + Battery

11y 3m

In Queue

IA Executed

IA Phase

Signed Feb 2024

Status

Project statusOperationalreNEWS.BIZ · 2025-05-07

Latest milestoneribbon-cutting ceremony and project completionSolar Power World · 2024-07-17

Interconnection

Queue → IA

8y 10m

IA → COD

1y 10m

Total Duration

8y 10m

Schedule

7 months past proposed COD

Study Phase

C08

Construction75%

Queue EntryApr 30, 2015

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 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: 2025-12-23

Cross-source intelligence

Beta

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

Expected COD

Jul 2024

Queue date 1–2 years staleQueue: 2025-12-23

Developer

EDP Renewables North America

Filed as RE Scarlet LLC

Status

Online

Online — Phase I operational July 2024, Phase II operational May 2025. Combined 440MW solar + 200MW/160MWh+ storage across two phases.

Financing

Secured

PPAs secured with Ava Community Energy, San José Clean Energy, and California Water Service. 20-year agreements in place with risk-sharing provisions for tariff policy changes.

Key milestones

IA executedFeb 8, 2024

Interconnection Agreement executed per LBNL queue data

source

COD targetJul 2024

Scarlet I (240MW solar + storage) ribbon-cutting ceremony and commercial operation

source

COD targetMay 2025

Scarlet II (200MW solar + 40MW/160MWh BESS) inaugurated and operational

source

Financing closeJul 2025Most recent

PPA agreements with Ava Community Energy include tariff risk-sharing provisions for 1GWh BESS capacity

source

Project lifecycle

as of 2025-05-07

PhaseOnlineSolar Power World · 2024-07-17

OperationalYesreNEWS.BIZ · 2025-05-07

TechnologySolar±reNEWS.BIZ · 2025-05-07

DeveloperEDP Renewables±reNEWS.BIZ · 2025-05-07

PPA offtakerAva Community Energy, San José Clean EnergySolar Power World · 2024-07-17

COD achievedReportedreNEWS.BIZ · 2025-05-07

About

The SCARLET project is a proposed 800 MW hybrid solar and battery energy storage development in Fresno County, California. The project consists of 400 MW of solar photovoltaic generation paired with 400 MW of battery storage. It is located within the CAISO balancing authority and interconnects to the PG&E utility grid at the Tranquility 230 kV point of interconnection.

The project, identified as CAISO-1135 in the CAISO interconnection queue, entered the queue on April 30, 2015, and has a proposed commercial operation date of December 23, 2025. An Interconnection Agreement (IA) for the project was executed on November 1, 2017. The SCARLET project has been the subject of 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.

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

Fresno

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

—

Utility

PGAE

Entity

CAISO

Service Type

NRIS

Point of Interconnection

Tranquility 230 kV

Data Source

LBNL + Live

DeveloperEDP Renewables North AmericaSolar Power World · 2024-07-17

ApplicantDarden Clean Energy ProjectLos Angeles Times · 2025-08-25

AgencyCalifornia Energy CommissionLos Angeles Times · 2025-08-25

RulingApprovalLos Angeles Times · 2025-08-25

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

Solar400 MW · 50%

Battery400 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_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 (4)Beta