Happy Dog Storage
104.52 MW generation in Milam, TX · In queue since June 2023 · Proposed COD April 2027
104.52 MW
Capacity
1
Components
Battery
3y 1m
In Queue
IA Executed
IA Phase
Signed Dec 2024
Queue → IA
1y 6m
IA → COD
2y 4m
Total Duration
1y 6m
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 executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 18–30 months
Proposed COD: 2027-04-13
Interconnection Agreement executed, IA date added to ERCOT queue December 15, 2024
sourceHappy Dog Storage is a proposed 60.16 MW battery storage project located in Milam County, Texas. The project, being developed by Rosula Solar LLC, is interconnected within the ERCOT region under queue ID ERCOT-25INR0442. It entered the interconnection queue on June 7, 2023, and has a proposed commercial operation date of April 13, 2027. The project's interconnection agreement was executed on December 16, 2024.
The interconnection point is Tap 345kV 3704 Hog Creek Switch _x0013_ 3687 Bell County East Switch. The project has been mentioned in recent news coverage.
Generated from interconnection queue and public data sources
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.
See the full development-risk decomposition for this project.
State
TX
County
Milam
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Rosula Solar LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345kV 3704 Hog Creek Switch – 3687 Bell County East Switch
Data Source
LBNL + Live
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.
See the full risk decomposition + scenarios for this project.
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.
See the full forecast + scenario decomposition for this project.
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.
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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Ask about Happy Dog StorageForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
