Hidden Lakes BESS (ERCOT-23INR0617) — Project Summary

Queue ID
ERCOT-23INR0617
Capacity
9.9 MW
Technology
Battery
Status
active
Location
Galveston, TX
Region
ERCOT
Developer
SBESS TX 6 LLC
IA Status
IA Executed

Hidden Lakes BESS

ERCOT-23INR0617BetaActiveBatteryERCOTLBNL

9.9 MW storage in Galveston, TX · In queue since June 2023 · Proposed COD May 2026

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

9.9 MW

Capacity

1

Components

Battery

3y 1m

In Queue

IA Executed

IA Phase

Signed Feb 2024

Interconnection

Queue → IA

8 months

IA → COD

2y 3m

Total Duration

8 months

Schedule

2 months past proposed COD

Construction75%
Queue EntryJun 14, 2023

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 AgreementFeb 7, 2024

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 6–18 months

Commercial Operation

Proposed COD: 2026-05-24

About

The Hidden Lakes BESS project is a proposed 9.9 MW battery storage project located in Galveston County, Texas. Developed by SBESS TX 6 LLC, the project is interconnected within the ERCOT region under queue ID ERCOT-23INR0617. The project entered the queue on June 14, 2023, with a proposed commercial operation date of November 30, 2025. An Interconnection Agreement (IA) has been executed as of February 7, 2024.

The Hidden Lakes BESS project is linked to the existing Hidden Lakes operating plant (EIA ID 67844). The interconnection point is designated as HDNLAKES, PTI Bus# 38900, Load XFMR Name HDLAKE_2, at a transmission level voltage of 138 kV. The project has appeared in recent news coverage.

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

Galveston

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

SBESS TX 6 LLC

Utility

Entity

ERCOT

Service Type

Point of Interconnection

Station Name: HDNLAKES PTI Bus#: 38900 Load XFMR Name: HDLAKE_2 Transmission Level Voltage: 138 kV

Data Source

LBNL

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_HOUSTON
Hub Confidence
HIGH
Nearest Node (Estimated)
HDNLAKES_RN

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.