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Power Plants in Delaware

All 44 operable plants · EIA inventory, August 2026.

Total capacity
3 GW
48th largest of the 50 states and DC
Plants
44
44 in service
Largest plant
1,098 MW
Hay Road

Capacity by fuel

Delaware generating capacity by fuel
FuelCapacitySharePlants
Natural gas2,781 MW91.5%10
Solar135 MW4.4%26
Other123 MW4.0%7
Wind2.0 MW0.1%1

Nameplate capacity — what the fleet could produce running flat out — not what it actually generated. A plant is filed under the fuel carrying most of its capacity. See what Delaware actually generated →

Largest plants in Delaware

#PlantFuelCapacityOnline
1Hay RoadNew Castle CountyNatural gas1,098 MW1989
2Edge MoorNew Castle CountyNatural gas710 MW1954
3Garrison Energy Center LLCKent CountyNatural gas361 MW2015
4Delaware City PlantNew Castle CountyNatural gas324 MW1956
5Energy Center DoverKent CountyNatural gas118 MW1985
6Warren F Sam Beasley Generation StationKent CountyNatural gas96 MW2002
7ChristianaNew Castle CountyOther55 MW1973
8ENGIE Solidago Solar Project - HybridNew Castle CountySolar50 MW2022
9Van Sant StationKent CountyNatural gas45 MW1991
10Red Lion Energy CenterNew Castle CountyNatural gas25 MW2012

Delaware's generating fleet in context

Delaware has 3 gigawatts of electric generating capacity spread across 44 plants, ranking 48th among the 50 states and DC by total capacity. This figure represents what the equipment could produce running flat out, not what it actually generated. Natural gas dominates the fleet, accounting for 2,781 megawatts or 91.5% of capacity across 10 plants. Solar provides 135 megawatts (4.4%) from 26 installations, while other fuels contribute 123 megawatts (4%), and wind adds 2 megawatts (0.1%).

The largest plants are all fueled by natural gas. Hay Road leads with 1,098 megawatts across 8 units, followed by Edge Moor at 710 megawatts with 4 units. Garrison Energy Center LLC in Kent County holds 361 megawatts, Delaware City Plant carries 324 megawatts in 6 units, and Energy Center Dover rounds out the top five at 118 megawatts. The oldest plant on the system, Edge Moor, came online in December 1954, while the newest addition, Chaberton Solar Biggins Creek LLC, entered service in June 2026.

Written from the EIA figures on this page, covering data through August 2026.

Every plant in Delaware, by fuel

Natural gas10 plants · 2,781 MW

All US natural gas plants →
Natural gas power plants in Delaware, largest first
PlantCountyCapacityUnitsOnline
Hay RoadNew Castle1,098 MW81989
Edge MoorNew Castle710 MW41954
Garrison Energy Center LLCKent361 MW22015
Delaware City PlantNew Castle324 MW61956
Energy Center DoverKent118 MW31985
Warren F Sam Beasley Generation StationKent96 MW22002
Van Sant StationKent45 MW11991
Red Lion Energy CenterNew Castle25 MW62012
Brookside NewarkNew Castle2.6 MW12012
AGT001 Centerville Fuel CellNew Castle1.3 MW12019

Solar26 plants · 135 MW

All US solar plants →
Solar power plants in Delaware, largest first
PlantCountyCapacityUnitsOnline
ENGIE Solidago Solar Project - HybridNew Castle50 MW12022
Milford Solar FarmKent12 MW12012
Dover Sun ParkKent10 MW12011
Heimlich SolarSussex4.5 MW12024
Bruce A Henry Solar FarmSussex4.0 MW12013
CE DE - HarbesonSussex4.0 MW12026
Chaberton Solar Biggins Creek LLCSussex4.0 MW12026
Chaberton Solar Blue Hen LLCSussex4.0 MW12026
DE-ECA CS HartlyKent4.0 MW12025
KE73 CSGKent4.0 MW12025
Sunrise Solar Lincoln DE (CSG)Sussex4.0 MW12026
Sussex CSG 2 LLCSussex3.3 MW12025
AstraZeneca Newark SolarNew Castle3.2 MW22024
Chaberton Solar BlackburnKent3.0 MW12025
DE-ECA CS SeafordSussex3.0 MW12025
DEC Phase II at GeorgetownSussex3.0 MW12019
NL DE Taylor CSGSussex3.0 MW12026
South Campus SolarNew Castle1.8 MW22011
Blue Hen SolarKent1.5 MW12022
WHA Southbridge Solar Park CSGNew Castle1.4 MW12018
DE-ECA CS East EvensKent1.3 MW12026
Perdue Bridgeville PhotovoltaicSussex1.3 MW12011
DD Hay Road Solar 23 LLCNew Castle1.2 MW12015
DG AMP Solar SmyrnaKent1.2 MW12018
Kent County Wastewater Treatment SolarKent1.2 MW12011
Onyx - Allen HarimSussex1.2 MW12017

Other7 plants · 123 MW

All US other plants →
Other power plants in Delaware, largest first
PlantCountyCapacityUnitsOnline
ChristianaNew Castle55 MW21973
Indian River Generating StationSussex19 MW11967
Delaware City 10New Castle19 MW11968
West Station (DE)New Castle16 MW11964
Ameresco Delaware CentralKent5.0 MW52006
Ameresco Delaware SouthSussex5.0 MW52006
Croda Atlas Point CHPNew Castle4.2 MW32013

Wind1 plant · 2.0 MW

All US wind plants →
Wind power plants in Delaware, largest first
PlantCountyCapacityUnitsOnline
University of Delaware Wind TurbineSussex2.0 MW12010

Sorted by nameplate capacity within each fuel. “Online” is the year the plant’s earliest surviving unit entered service.

Frequently asked questions

›How many power plants are there in Delaware?
Delaware has 44 operable power plants with a combined nameplate capacity of 3 GW, the 48th largest generating fleet of the 50 states and DC. 44 of them are currently in service.
›What is the largest power plant in Delaware?
Hay Road in New Castle County, a natural gas plant with 1,098 MW of capacity across 8 generating units, first online in May 1989.
›What fuel do Delaware's power plants use?
Natural gas accounts for the largest share of Delaware's generating capacity — 2,781 MW, or 91.5% of the total, across 10 plants. Solar follows at 4.4%, Other follows at 4.0%, Wind follows at 0.1%. Note this is capacity, not generation — what the fleet could produce, not what it did.
›What is the oldest power plant in Delaware?
Edge Moor is the oldest still operable, with its earliest unit entering service in December 1954. The most recent addition is Chaberton Solar Biggins Creek LLC, online since June 2026.