Gemstone Solar
150 MW generation in Cass, MI · In queue since January 2020 · Proposed COD December 2028
150 MW
Capacity
1
Components
Solar
6y 4m
In Queue
IA Executed
IA Status
COD target: 2028
Total Duration
8y 11m
Interconnection request submitted to ISO/RTO
PJM processes interconnection requests through multi-phase System Impact Studies (SIS).
Typical: ~48 months (historically longest)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 12–24 months
Proposed COD: 2028-12-31
The Gemstone Solar project is a proposed 150 MW solar generation project located in Cass County, Michigan. The project is interconnected within the PJM Interconnection queue as entry PJM-AF2-083, with a queue entry date of January 31, 2020, and a proposed commercial operation date of December 31, 2028. The designated point of interconnection is Kenzie Creek-Stone Lake 69 kV, and the interconnection agreement has been executed.
The project is linked to the existing Gemstone Solar LLC operating plant (EIA plant ID 68061). The queue project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
MI
County
Cass
Grid Region
PJM Interconnection
Market
ISO/RTO Member
Developer
—
Utility
AEP
Entity
PJM
Service Type
—
Point of Interconnection
Kenzie Creek-Stone Lake 69 kV
Data Source
LBNL + Live
- ISO / RTO
- PJM
- Trading Hub
- N ILLINOIS HUB
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- MUDDLAKE34.5 KV GEMSTNSP
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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