How many power plants does Calpine Mid-Atlantic Generation operate?

EIA-860M lists 8 operating plants against “Calpine Mid-Atlantic Generation LLC” for 2026-07, totalling 2 GW of nameplate capacity in 3 states.

Is Calpine Mid-Atlantic Generation the owner of these plants?

EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.

Why are affiliates listed separately?

Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.

Calpine Mid-Atlantic Generation power plants

Every generating plant EIA-860M files against Calpine Mid-Atlantic Generation for 2026-07: 8 plants, 2 GW of nameplate capacity, across 3 states and 2 energy sources.

EIA files this entity as “Calpine Mid-Atlantic Generation LLC”.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 8
Nameplate capacity: 2 GW
States: 3; DE, MD, VA
Energy sources: 2

Calpine Mid-Atlantic Generation plants by energy source

Natural gas2 plants · 1,809 MW
Petroleum6 plants · 140 MW

Full list of Calpine Mid-Atlantic Generation power plants

Power plants operated by Calpine Mid-Atlantic Generation LLC

Hay RoadNatural Gas Fired Combined Cycle	Calpine Mid-Atlantic Generation LLC	New Castle	1,098.2	8	1989	Operating
Edge Moor2 technologies	Calpine Mid-Atlantic Generation LLC	New Castle	710.3	4	1954	Operating
ChristianaPetroleum Liquids	Calpine Mid-Atlantic Generation LLC	New Castle	55	2	1973	Standby/Backup
TasleyPetroleum Liquids	Calpine Mid-Atlantic Generation LLC	Accomack	27	1	1972	Standby/Backup
Delaware City 10Petroleum Liquids	Calpine Mid-Atlantic Generation LLC	New Castle	18.5	1	1968	Standby/Backup
West Station (DE)Petroleum Liquids	Calpine Mid-Atlantic Generation LLC	New Castle	16.2	1	1964	Standby/Backup
BayviewPetroleum Liquids	Calpine Mid-Atlantic Generation LLC	Northampton	12	6	1963	Standby/Backup
CrisfieldPetroleum Liquids	Calpine Mid-Atlantic Generation LLC	Somerset	11.6	4	1968	Standby/Backup

Calpine Mid-Atlantic Generation: FAQ

How many power plants does Calpine Mid-Atlantic Generation operate?: EIA-860M lists 8 operating plants against “Calpine Mid-Atlantic Generation LLC” for 2026-07, totalling 2 GW of nameplate capacity in 3 states.
Is Calpine Mid-Atlantic Generation the owner of these plants?: EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
Why are affiliates listed separately?: Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.