Grandslam Solar
ERCOT-21INR0391BetaActiveSolarERCOTLBNL + Live
121.89 MW generation in Atascosa, TX · In queue since July 2019 · Proposed COD November 2026
121.89 MW
Capacity
1
Components
Solar
6y 9m
In Queue
IA Executed
IA Status
Signed Jan 2021
Interconnection Timeline
Queue → IA
1y 6m
IA → COD
5y 10m
Total Duration
1y 6m
Construction75%
Queue EntryJul 29, 2019
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 AgreementJan 29, 2021
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
ConstructionCurrent
Project under construction
Typical: 12–24 months
Commercial Operation
Proposed COD: 2026-11-28
Project Details
State
TX
County
Atascosa
Region
ERCOT
Developer
Grandslam Solar, L.L.C.
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
5700 Miracle Lake 138kV
Data Source
LBNL + Live
No news available for this project.