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BATTERY STORAGE · MISOSurplus
Surplus is a 150 MW battery storage request in interconnection study in the MISO interconnection queue, in St. Clair County, Illinois, connecting to AMEREN ILLINOIS.
Queue statusIn planning
- PlanningQueued Jan 2025 (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingTarget Sep 2029 (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
- S1077
- Grid region
- MISO (Midcontinent)
- Utility / transmission owner
- AMEREN ILLINOIS
- Connection point (POI)
- Fayetteville Bee Hollow Road
- Location
- St. Clair County, Illinois
- Technology
- Battery: 150 MW
- Total requested
- 150 MW
- Queue status
- Active
- Entered queue
- 13 January 2025
- Proposed online date
- September 2029
Location
Marker shows the centre of St. Clair County; the queue data does not give exact sites.
Other requests in St. Clair County
- Solar project J1311, St. Clair CountySolar · 150 MW · agreement signed
- Battery storage project J2998, St. Clair CountyBattery storage · 200 MW · in study
- Solar + storage project J3184, St. Clair CountySolar + storage · 145 MW · in study
- Other project J2697, St. Clair CountyOther · 500 MW · withdrawn
- Battery storage project J3200, St. Clair CountyBattery storage · 250 MW · withdrawn
- Battery storage project J2204, St. Clair CountyBattery storage · 200 MW · withdrawn
- Solar project J2645, St. Clair CountySolar · 199 MW · withdrawn
- Battery storage project J3297, St. Clair CountyBattery storage · 150 MW · withdrawn
- Battery storage project J3011, St. Clair CountyBattery storage · 100 MW · withdrawn
- Solar project J3069, St. Clair CountySolar · 70.0 MW · withdrawn
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