HEARTLAND 1 (CAISO-1379) — Project Summary

Queue ID
CAISO-1379
Capacity
228.31 MW
Technology
Solar+Battery
Status
active
Location
Fresno, CA
Region
CAISO
Developer
IA Status
IA Executed

HEARTLAND 1

CAISO-1379BetaActiveSolarBatteryCAISOLBNL + Live

228.31 MW hybrid in Fresno, CA · In queue since May 2017 · Proposed COD June 2028

BA: CISOISO/RTO: CAISONERC: WECCRC: RCW

228.31 MW

Capacity

2

Components

Solar + Battery

9y 2m

In Queue

IA Executed

IA Phase

Signed Dec 2023

Interconnection

Queue → IA

6y 7m

IA → COD

4y 6m

Total Duration

6y 7m

Study Phase

C10

Construction75%
Queue EntryMay 1, 2017

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 4, 2023

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–30 months

Commercial Operation

Proposed COD: 2028-06-30

Cross-source intelligence
Beta
Low confidence·4 sources·as of 2026-06-01
Expected COD
2028-06-30
From queue filing
Developer
Plug Power
From queue filing
Status
Active
Active — IA executed Dec 2023, part of broader Westlands Water District 21 GW solar-storage initiative on fallowed farmland
Financing
Unannounced
Key milestones
IA executedDec 4, 2023Most recent

Interconnection Agreement executed with CAISO

source
About

The HEARTLAND 1 project is a proposed solar generation project located in Fresno County, California, with a total capacity of 156.04 MW. The project is in the CAISO interconnection queue as entry CAISO-1379, with a queue entry date of May 1, 2017, and a proposed commercial operation date of June 30, 2028. The interconnecting utility is PG&E.

The project's interconnection agreement (IA) was executed on December 4, 2023. The point of interconnection (POI) is Tranquility 230 kV. Recent news coverage has discussed the project in the context of industry developments.

Generated from interconnection queue and public data sources

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

CA

County

Fresno

Grid Region

CAISO (California)

Market

ISO/RTO Member

Developer

Utility

PGAE

Entity

CAISO

Service Type

ERIS

Point of Interconnection

Tranquility 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.

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
Solar156.04 MW · 68%
Battery72.27 MW · 32%
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.

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Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.