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SOLAR + STORAGE · ERCOTBig River BESS
Big River BESS is a 51.3 MW solar + storage request in interconnection study in the ERCOT interconnection queue, in Zapata County, Texas.
Queue statusIn planning
- PlanningQueued May 2021 (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingTarget Dec 2028 (not yet reached)
- Closed (not yet reached)
Studies assess what grid upgrades the project would need and who pays for them. A signed interconnection agreement is the main step before construction.
Request details
- Queue ID
- 23INR0237
- Grid region
- ERCOT (Texas)
- Developer
- Rio Grande River Solar LLC
- Connection point (POI)
- tap 138kV 8299 Zapata - 8957 Lopeno4A
- Location
- Zapata County, Texas
- Technology
- Battery: 51.3 MW · Battery
- Total requested
- 51.3 MW
- Study phase
- SS Completed, FIS Started, No IA
- Queue status
- Active
- Entered queue
- 4 May 2021
- Proposed online date
- December 2028
Location
Marker shows the centre of Zapata County; the queue data does not give exact sites.
Other requests in Zapata County
- Cascabel Wind 2Onshore wind · 198 MW · agreement signed
- Cascabel Wind 1Onshore wind · 198 MW · agreement signed
- Corralitos Wind 1Onshore wind · 196 MW · agreement signed
- Corralitos Wind 2Onshore wind · 195 MW · agreement signed
- Falcon BESSBattery storage · 517 MW · in study
- Freedom Falcon BESSBattery storage · 502 MW · in study
- Vaquero 1 WindOnshore wind · 400 MW · in study
- Tetris SolarSolar · 359 MW · in study
- Sierra Madre SolarSolar · 255 MW · in study
- Zelus BESSBattery storage · 201 MW · in study
- Falcon Zapata Storage 138Battery storage · 201 MW · in study
- Barrosos Creek Wind 3Onshore wind · 198 MW · in study
Source: Lawrence Berkeley National Laboratory, Queued Up, data through end of 2025, compiled from ISO/RTO and utility queues. Check the grid operator's own queue for the latest status. Report a problem