ROUGH HAT 2

CAISO-1799BetaActiveSolarBatteryCAISOLBNL + Live

407.6 MW hybrid in Clark, NV · In queue since April 2020 · Proposed COD December 2027

BA: NEVPISO/RTO: CAISONERC: WECCRC: SPPW

407.6 MW

Capacity

Components

Solar + Battery

6y 3m

In Queue

IA Executed

IA Phase

Signed Apr 2024

Status

as of 21 months ago

Project statusApprovedReuters · 2024-10-31

Interconnection

Queue → IA

4 years

IA → COD

3y 8m

Total Duration

4 years

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 AgreementApr 25, 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: 2027-12-01

Cross-source intelligence

Beta

High confidence·4 sources·as of 2026-06-01

Expected COD

2027-12-01

From queue filing

Developer

—

Status

Cancelled

Cancelled — BLM approved project Jan 2025, but Trump Interior Department cancelled it Oct 2025 as 'largest solar project in North America'

Financing

Cancelled

Key milestones

IA executedApr 25, 2024

Interconnection Agreement executed with CAISO

source

Permit approvedJan 16, 2025

BLM approved Rough Hat Clark Solar Project on public lands, 48th renewable energy project under Biden administration

source

WithdrawnOct 10, 2025Most recent

Trump Interior Department cancelled project, described as largest solar project in North America

source

Project lifecycle

as of 2024-10-31

OperationalNoReuters · 2024-10-31

TechnologyHybridReuters · 2024-10-31

Permit decisionGrantedReuters · 2024-10-31

About

The ROUGH HAT 2 project is a proposed 407.6 MW hybrid solar and battery energy storage project in Clark County, Nevada. The development project consists of 203.8 MW of solar generation capacity coupled with 203.8 MW of battery storage. The project is located within the California Independent System Operator (CAISO) region and is interconnected to the grid via the Trout Canyon Substation at 230 kV.

ROUGH HAT 2 entered the CAISO interconnection queue as queue ID CAISO-1799 on April 15, 2020, with a proposed commercial operation date of December 1, 2027. The project's interconnection agreement has been executed. Recent news coverage has discussed the project in the context of the energy industry and grid development.

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.

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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

Clark

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

—

Utility

GLW

Entity

CAISO

Service Type

NRIS

Point of Interconnection

Trout Canyon Substation 230 kV

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.

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See the full risk decomposition + scenarios for this project.

Climate hazards (8+)

Generation variability (P10/P50/P90)

Offtake + transmission counterparty

Technology

Solar203.8 MW · 50%

Battery203.8 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.

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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): CANYONP4_7_GN001
POI Substation: Canyon

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.

ROUGH HAT 2 (CAISO-1799) — Project Summary

ROUGH HAT 2