Mammoth South Energy Center
300 MW generation in Pulaski, IN · In queue since March 2020 · Proposed COD February 2027
300 MW
Capacity
1
Components
Solar
6y 2m
In Queue
IA Executed
IA Status
COD target: 2027
Total Duration
6y 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: 2027-02-06
The Mammoth South Energy Center is a proposed 300 MW solar generation project located in Pulaski County, Indiana. The project, under development within the PJM Interconnection queue as entry PJM-AF2-133, was initially entered into the queue on March 4, 2020, with a proposed commercial operation date of February 6, 2027. The interconnection agreement (IA) for the project has been executed.
The proposed project is linked to the existing Mammoth South Solar Project operating plant (EIA plant ID 66545). The Mammoth South Energy Center has been the subject of recent news coverage.
Generated from interconnection queue and public data sources
State
IN
County
Pulaski
Grid Region
PJM Interconnection
Market
ISO/RTO Member
Developer
—
Utility
AEP
Entity
PJM
Service Type
—
Point of Interconnection
Reynolds-Olive #2 345 kV
Data Source
LBNL + Live
- ISO / RTO
- PJM
- Trading Hub
- N ILLINOIS HUB
- Hub Confidence
- LOW
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 2026-04-09
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