Surplus; Shelby
150 MW hybrid in Cumberland, IL · In queue since June 2024 · Proposed COD September 2026
150 MW
Capacity
1
Components
Solar
1y 11m
In Queue
—
IA Status
COD target: 2026
Total Duration
2y 3m
Interconnection request submitted to ISO/RTO
MISO uses the Definitive Planning Phase (DPP) process with 3 study phases.
Typical: 30–40 months (historical); 12 months target
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2026-09-22
The Surplus; Shelby development project is a proposed 150 MW hybrid solar project located in Cumberland County, Illinois. Interconnecting to the Ameren Illinois utility, the project consists of 150 MW of solar generation.
The project is listed in the MISO interconnection queue as entry S1052, with a queue entry date of June 14, 2024, and a proposed commercial operation date of September 22, 2026.
Generated from interconnection queue and public data sources
State
IL
County
Cumberland
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
AMEREN ILLINOIS
Entity
MISO
Service Type
—
Point of Interconnection
Neoga South 138kV
Data Source
LBNL + Live
- ISO / RTO
- MISO
- Trading Hub
- ILLINOIS.HUB
- Hub Confidence
- HIGH
- POI Substation
- South
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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