Sparta BESS
250.95 MW hybrid in Bee, TX · In queue since January 2026 · Proposed COD December 2029
250.95 MW
Capacity
0
Components
9 months
In Queue
—
IA Status
COD target: 2029
One connected view of the asset's ownership, operating or development evidence, grid context, commercial relationships, history, and forward outlook.
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Total Duration
3y 11m
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: 2029-12-31
Sparta BESS is a proposed battery energy storage development project in Bee County, Texas, within the Electric Reliability Council of Texas (ERCOT) region. The project is being developed by Sparta Storage Center and has a total capacity of 250.95 MW. Although its primary technology is battery storage, it is classified as a hybrid project, with technology components listed as battery energy storage and an additional unspecified "other" component. Individual capacities for these components are not specified in the available data.
The project is listed in the ERCOT interconnection queue under queue ID ERCOT-28INR0485 and holds an active status. It entered the queue on January 26, 2026, and has a proposed commercial operation date of December 31, 2029. The project's point of interconnection is identified as 88690 SPTPOI7A 345kV, indicating a connection at the 345 kV transmission level. The available data does not indicate the status of an interconnection agreement.
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
Bee
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Sparta Storage Center
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
88690 SPTPOI7A 345kV
Data Source
Live · ERCOT
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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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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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.
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