Maryland · Battery

Proposed battery projects in Maryland

There are 14 proposed battery projects in Maryland's interconnection queue, totaling 3.14 GW of requested capacity. The largest is Queue AI2-457 at 1.12 GW, and the median planned online year is 2026.

14
Proposed projects
3.14 GW
Requested capacity
224.5 MW
Average project size
2026
Median planned online year

All proposed battery projects in Maryland

TypeRegionIA Status
Queue AI2-457
AI2-457
BatteryPJMCharlesFeasibility Study1.12 GW20232027
Cardinal Energy Storage East, LLC project
AH1-725
BatteryPJMHarfordSystem Impact Study500 MW2025—
Fourth Quarter
AG1-483
BatteryPJMMontgomeryIA Executed500 MW20202030
Queue AH2-265
AH2-265
BatteryPJMCharlesFeasibility Study200 MW20222026
Queue AH2-423
AH2-423
BatteryPJMCalvertFeasibility Study180 MW20222025
Pulaski Energy Storage
AH1-261
BatteryPJMBaltimoreSystem Impact Study135 MW20252025
Queue AH2-332
AH2-332
BatteryPJMPrince George'sFeasibility Study115 MW20222025
Queue AI1-189
AI1-189
BatteryPJMBaltimoreFeasibility Study110 MW20222027
Queue AI1-130
AI1-130
BatteryPJMBaltimoreFeasibility Study75 MW20222026
Queue AI1-131
AI1-131
BatteryPJMBaltimoreFeasibility Study75 MW20222026
Queue AI2-307
AI2-307
BatteryPJMCecilFeasibility Study60.5 MW20232026
Queue AI2-311
AI2-311
BatteryPJMWashingtonFeasibility Study30 MW20232025
Concho Solar I, LLC project
AG2-380
BatteryPJMQueen Anne'sSystem Impact Study20 MW20242023
Queue AH2-049
AH2-049
BatteryPJMSomersetFeasibility Study20 MW20212025

Browse Maryland's full interconnection queue. Compare with operating capacity: 2 operating storage plants in Maryland. Nationwide: Storage plants nationwide.

Source: "Queued Up" (Rand et al., Lawrence Berkeley National Laboratory, 2026 edition) (data as of December 31, 2025).