Surfside Energy Storage
50.34 MW storage in Brazoria, TX · In queue since July 2023 · Proposed COD December 2028
50.34 MW
Capacity
1
Components
Battery
3 years
In Queue
Facility Study
IA Phase
COD target: 2028
Total Duration
5y 5m
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2028-12-31
The Surfside Energy Storage project is a proposed 50.34 MW battery energy storage system in Brazoria County, Texas. Developed by Rocky Mountain Energy Holdings, LLC, the project is located within the ERCOT region and has been assigned queue ID ERCOT-25INR0458. The project entered the ERCOT interconnection queue on July 19, 2023, with a proposed commercial operation date of December 31, 2028. Its interconnection status is currently in the Facility Study phase.
The Surfside Energy Storage project has been mentioned in recent news coverage related to grid development.
Generated from interconnection queue and public data sources
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.
See the full development-risk decomposition for this project.
State
TX
County
Brazoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Rocky Mountain Energy Holdings, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 42110 Angleton – 43150 Riwood ckt 82
Data Source
LBNL + Live
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.
See the full risk decomposition + scenarios for this project.
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.
See the full forecast + scenario decomposition for this project.
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.
See the full revenue + DSCR projection for this project.
- 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.
Last updated 2026-03-26
View all articlesNo Ask reports yet for this entity.
Ask about Surfside Energy StorageForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
