Zunkerville BESS
206.74 MW generation in Karnes, TX · In queue since September 2025 · Proposed COD December 2029
206.74 MW
Capacity
1
Components
Battery
10 months
In Queue
Facility Study
IA Phase
COD target: 2029
Total Duration
4y 3m
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: 2029-12-01
Entered ERCOT queue in Facility Study phase
The Zunkerville BESS project is a proposed 206.74 MW hybrid battery energy storage project located in Karnes County, Texas. Developed by Zunkerville Energy, LLC, the project consists of battery energy storage and other unspecified technologies. It is currently active in the ERCOT interconnection queue as entry ERCOT-28INR0442, with a queue entry date of September 22, 2025, and a proposed commercial operation date of June 1, 2028.
The point of interconnection for the project is the 345kV BUS #5725 at the Pawnee Switching Station. Recent news coverage has discussed the development project.
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
Karnes
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Zunkerville Energy, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
345kV BUS #5725 PAWNEE SWITCHING STATION
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
- MEDIUM
- POI Substation
- Pawnee
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.
No Ask reports yet for this entity.
Ask about Zunkerville BESSForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
