Hacienda Storage

ERCOT-23INR0485BetaActiveBatteryERCOTLBNL + Live

201.9 MW storage in Galveston, TX · In queue since May 2022 · Proposed COD December 2027

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

201.9 MW

Capacity

Components

Battery

4y 2m

In Queue

Facility Study

IA Phase

COD target: 2027

Interconnection

Total Duration

5y 7m

Facilities Study50%

Queue EntryMay 10, 2022

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

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

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2027-12-01

Cross-source intelligence

Beta

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

Expected COD

Dec 2026

Queue date 1–2 years staleQueue: 2027-12-01

Developer

Belltown Power

Filed as Galveston Energy Storage LLC

Status

Active

Active — Facility Study stage, no IA executed yet. Build probability assessed as low (5%) by ercotqueue.com.

Financing

Unannounced

Key milestones

COD targetDec 17, 2026Most recent

Proposed completion date updated from June 2026 to December 17, 2026 per ERCOT queue change

source

About

The Hacienda Storage project is a proposed 201.9 MW battery energy storage system located in Galveston County, Texas. The project, being developed by Galveston Energy Storage LLC, is currently active in the ERCOT interconnection queue as entry ERCOT-23INR0485, with a queue entry date of May 10, 2022.

The proposed commercial operation date for Hacienda Storage is December 1, 2027. The project's interconnection status is currently in the Facility Study phase, and it intends to connect to the 38745 Attwater 138kV point of interconnection. The project has appeared in recent news.

Generated from interconnection queue and public data sources

ERCOT Queue

Development Risk

Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. 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)

Withdrawal probability vs cohort

IA cluster risk

Project Details

State

County

Galveston

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Galveston Energy Storage LLC

Utility

—

Entity

ERCOT

Service Type

—

Point of Interconnection

38745 Attwater 138kV

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. 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

Generation Forecast

Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.

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See the full forecast + scenario decomposition for this project.

P50 conditioned on COD

Capacity factor vs cohort

Weather + policy scenarios

Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

Revenue conditioned on COD

Financing close risk

Cohort DSCR comparison

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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InfraSure platform

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

Hacienda Storage (ERCOT-23INR0485) — Project Summary

Hacienda Storage