Longfellow BESS I (ERCOT-24INR0453) — Project Summary

Queue ID
ERCOT-24INR0453
Capacity
54.99 MW
Technology
Solar+Battery
Status
active
Location
Pecos, TX
Region
ERCOT
Developer
CENTURY GAS PROCESSING, LLC
IA Status
IA Executed

Longfellow BESS I

ERCOT-24INR0453BetaActiveBatteryBatteryERCOTLBNL + Live

54.99 MW generation in Pecos, TX · In queue since November 2022 · Proposed COD November 2026

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

54.99 MW

Capacity

1

Components

Battery

3y 8m

In Queue

IA Executed

IA Phase

Signed Apr 2025

Interconnection

Queue → IA

2y 5m

IA → COD

1y 7m

Total Duration

2y 5m

Construction75%
Queue EntryNov 7, 2022

Interconnection request submitted to ISO/RTO

Interconnection Study

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection AgreementApr 15, 2025

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 18–30 months

Commercial Operation

Proposed COD: 2026-11-30

About

The Longfellow BESS I project is a proposed 54.99 MW battery storage project located in Pecos County, Texas. The developer is CENTURY GAS PROCESSING, LLC. It is currently active in the ERCOT interconnection queue as entry ERCOT-24INR0453, with a queue entry date of November 7, 2022, and a proposed commercial operation date of November 30, 2026. The project's interconnection agreement status is currently in the Facility Study phase.

The project consists of a single 54.99 MW battery component. The point of interconnection is the 38431 TNCENTRY1_1 138 KV substation. The Longfellow BESS I project has appeared in recent news coverage regarding energy storage development in Texas.

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.

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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

TX

County

Pecos

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

CENTURY GAS PROCESSING, LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

38432 TNCENTRY1_1 138 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
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
ERCOT
Trading Hub
HB_NORTH
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.