Limestone Solar
20 MW generation in Union, PA · In queue since September 2019 · Proposed COD September 2027
20 MW
Capacity
1
Components
Solar
6y 6m
In Queue
IA Executed
IA Status
COD target: 2027
Total Duration
8 years
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: 2027-09-30
State
PA
County
Union
Region
PJM
Developer
—
Utility
PPL
Entity
PJM
Point of Interconnection
Laurelton-Mifflinburg 69 kV
Data Source
LBNL + Live
Powering Up With Solar Energy in Limestone
The town of Limestone in Aroostook County received a $50000 Community Action Grant to help purchase a pair of existing solar arrays located...
Powering Up With Solar Energy in Limestone
The town of Limestone in Aroostook County received a $50000 Community Action Grant to help purchase a pair of existing solar arrays located...
Last updated 2026-03-26