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SOLAR · MISOSolar project J2603, Mason County
Solar project J2603, Mason County is a 320 MW solar request in interconnection study in the MISO interconnection queue, in Mason County, Illinois, connecting to AMEREN ILLINOIS.
Queue statusIn planning
- PlanningQueued Sep 2022 (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingTarget Jun 2026 (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
- J2603
- Grid region
- MISO (Midcontinent)
- Utility / transmission owner
- AMEREN ILLINOIS
- Connection point (POI)
- 4PURO - 4HAVANA3 138.0kV
- Location
- Mason County, Illinois
- Technology
- Solar: 320 MW
- Total requested
- 320 MW
- Service type
- Network resource (NRIS)
- Study phase
- Study Phase: DPP 2; Post GIA Status: Not Started
- Queue status
- Active
- Entered queue
- 15 September 2022
- Proposed online date
- June 2026
Location
Marker shows the centre of Mason County; the queue data does not give exact sites.
Other requests in Mason County
- Onshore wind project J2963, Mason CountyOnshore wind · 200 MW · in study
- Onshore wind project J3519, Mason CountyOnshore wind · 200 MW · in study
- Solar + storage project J3003, Mason CountySolar + storage · 180 MW · in study
- Solar + storage project J3004, Mason CountySolar + storage · 142 MW · in study
- Onshore wind project J1453, Mason CountyOnshore wind · 188 MW · built
- Onshore wind project J1055, Mason CountyOnshore wind · 144 MW · built
- Onshore wind project J1454, Mason CountyOnshore wind · 58.5 MW · built
- Onshore wind project W3-046, Mason CountyOnshore wind · 208 MW · withdrawn
- Solar project J3475, Mason CountySolar · 200 MW · withdrawn
- Battery storage project J2842, Mason CountyBattery storage · 200 MW · withdrawn
- Onshore wind project J3809, Mason CountyOnshore wind · 200 MW · withdrawn
- Solar + storage project J3005, Mason CountySolar + storage · 150 MW · withdrawn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