MC Solar I
50 MW generation in Mercer, PA · In queue since March 2019 · Proposed COD January 2027
50 MW
Capacity
1
Components
Solar
7y 2m
In Queue
IA Executed
IA Status
COD target: 2027
Total Duration
7y 10m
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: 2027-01-29
MC Solar I is a proposed 50 MW solar generation project located in Mercer County, Pennsylvania. The project is interconnected within the PJM Interconnection queue as entry PJM-AE2-285, with a queue entry date of March 30, 2019, and a proposed commercial operation date of January 29, 2027. The interconnection agreement (IA) for the project has been executed.
The proposed project is linked to the existing MC Solar operating plant (EIA ID 68930). Recent news coverage indicates activity related to the project's industry and development.
Generated from interconnection queue and public data sources
State
PA
County
Mercer
Grid Region
PJM Interconnection
Market
ISO/RTO Member
Developer
—
Utility
ATSI
Entity
PJM
Service Type
—
Point of Interconnection
Maysville 69 kV
Data Source
LBNL + Live
- ISO / RTO
- PJM
- Trading Hub
- WESTERN HUB
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- atsi, sharon 69 kv, 1338424127
- POI Substation
- Maysville Substation
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.
Last updated 2026-03-26
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