Query
Conowingo
Type
Entity Briefing
Entity
Conowingo
Generated
2026-10-19T09:29:15.177Z

Briefing on Conowingo

Entity Briefing
Generated Oct 19, 2026·Dataset freshness not reported
531 MW
Capacity
Operating
Current status
1928
Operating since
11
Generators
33.3%
Capacity factor
1549 GWh
Annual generation
Briefing/plantOperating

Conowingo is a 531 MW Conventional Hydroelectric asset in PJM Interconnection, currently Operating.

Conowingo is reported in Maryland since 1928 under Constellation Energy. Available operating and financial measures include 33.3% capacity factor and 1549 GWh annual generation; $2294/kW reported CapEx.

Location
Harford, Maryland
Technology
Conventional Hydroelectric
Owner / parent
Constellation Energy
Operator
Constellation Power, Inc
Grid
PJM Interconnection
Plant ID
1574

What stands out

1

Conowingo is a 531 MW Conventional Hydroelectric asset in Maryland with status Operating.

2

Latest annual operating measures report 33.3% capacity factor and 1549 GWh annual generation.

3

Available financial measures include $2294/kW CapEx.

4

Latest linked story: “Constellation Reports First Quarter 2026 Results” (ChartMill, 2026-05-10).

Market and operating context

ISO / market
PJM Interconnection
Balancing authority
PJM Interconnection, LLC
NERC region
RFC
State rank
#1 of 2
National rank
#47 of 1,462

Why it matters

For this asset in PJM Interconnection, operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.