Largest greenhouse-gas emitters in Delaware

19 facilities in Delaware reported 5,794,099 metric tons CO2e of direct emissions to the EPA for 2023, 0.2% of the national total for reporting direct emitters. Refineries accounts for the most (59%). Largest first.

#	Facility	City	Sector	t CO2e
1	Delaware City Refinery	Delaware City	Refineries, Power Plants	3,416,063
2	Hay Road	Wilmington	Power Plants	913,892
3	Garrison Energy Center	Dover	Power Plants	322,457
4	Air Products H2 SMR Plant at DCRC (Unit 37)	Delaware City	Chemicals	246,813
5	DE SOLID WASTE AUTHORITY CHERRY ISLAND	Wilmington	Waste	204,065
6	Edge Moor	Wilmington	Power Plants	166,549
7	Linde Inc.	Delaware City	Chemicals	121,190
8	Mountaire Farms of Delaware, Inc.	Millsboro	Waste, Other	83,090
9	Energy Center Dover	Dover	Power Plants	55,477
10	DUPONT EXPERIMENTAL STATION	Wilmington	Other	39,431
11	UNIVERSITY OF DELAWARE	Newark	Other	37,843
12	Indian River	Dagsboro	Power Plants	29,807
13	Perdue Georgetown Processing Plant	Georgetown	Waste, Other	29,057
14	DE SOLID WASTE AUTHORITY SOUTHERN	Georgetown	Waste	28,439
15	Croda Inc	New Castle	Chemicals	25,940
16	Colors and Effects USA LLC	Newport	Chemicals	24,078
17	International N&H USA, Inc.	Newark	Chemicals	22,132
18	DE SOLID WASTE AUTHORITY CENTRAL LANDFILL	Felton	Waste	16,728
19	Warren F. Sam Beasley Pwr Station	Smyrna	Power Plants	11,047

Source: EPA Greenhouse Gas Reporting Program, 2023 reporting year, sector-level emissions from data.epa.gov (fetched October 31, 2026). Direct emissions in metric tons CO2e as EPA totals them: emitter sectors only, biogenic CO2 reported separately. Covers facilities that report as direct emitters; most emit 25,000 t CO2e or more a year. Reference only.

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