Largest greenhouse-gas emitters in Massachusetts

63 facilities in Massachusetts reported 8,812,173 metric tons CO2e of direct emissions to the EPA for 2023, 0.4% of the national total for reporting direct emitters. Power Plants accounts for the most (71%). Largest first.

#	Facility	City	Sector	t CO2e
1	Bellingham Power Generation LLC	Bellingham	Power Plants	1,217,538
2	Blackstone Power Generation LLC	Blackstone	Power Plants	1,080,447
3	Fore River Energy Center	Weymouth	Power Plants	886,337
4	Kendall Green Energy	Cambridge	Power Plants	788,060
5	Mystic	Charlestown	Power Plants	528,357
6	SEMASS PARTNERSHIP RESOURCE RECOVERY FACILITY	Rochester	Waste	423,563
7	MASSPOWER	Indian Orchard	Power Plants	283,432
8	Salem Harbor Station NGCC	Salem	Power Plants	278,894
9	MEDICAL AREA TOTAL ENERGY PLANT	Boston	Power Plants	263,148
10	Millennium Power	Charlton	Power Plants	243,808
11	COVANTA HAVERHILL INC	Haverhill	Waste	235,183
12	WHEELABRATOR MILLBURY INC	Millbury	Waste	215,002
13	WHEELABRATOR NORTH ANDOVER INC.	North Andover	Waste	200,790
14	MIT Central Utility Plant	Cambridge	Other	163,804
15	Dighton	Dighton	Power Plants	151,449
16	Wheelabrator Saugus Inc.	Saugus	Waste	144,608
17	SPECIALTY MINERALS	Adams	Minerals	104,307
18	UMASS PHYSICAL PLANT BUILDING	Amherst	Other	103,468
19	Milford Power, LLC	Milford	Power Plants	97,707
20	Medway Station	Medway	Power Plants	96,770
21	UMASS MEDICAL SCHOOL	Worcester	Other	86,069
22	The President and Fellows of Harvard University (Cambridge Allston Blackstone)	Cambridge	Other	79,476
23	Kneeland Station	Boston	Power Plants	69,195
24	Analog Devices Inc	Willmington	Other	60,623
25	Canal Station	Sandwich	Power Plants	59,861
26	SOLUTIA INC - INDIAN ORCHARD PLANT	Springfield	Other	59,347
27	Boston University	Boston	Other	49,083
28	HAVERHILL LANDFILL	Haverhill	Waste	47,775
29	Bellingham	Bellingham	Power Plants	47,720
30	Pfizer	Andover	Chemicals	47,363
31	GILLETTE CO	Boston	Other	44,355
32	SAINT-GOBAIN ABRASIVES and SAINT-GOBAIN CERAMICS & PLASTICS, INC.	Worcester	Minerals	43,771
33	Carver-Marion-Wareham Landfill	Carver	Waste	39,735
34	Analog Devices, Inc./ Wilmington Manufacturing	Wilmington	Other	38,727
35	ERVING PAPER MILLS INC	Erving	Pulp and Paper	34,874
36	Rousselot Peabody, Inc.	Peabody	Chemicals	34,489
37	U S AIR FORCE HANSCOM AFB	Hanscom Afb	Other	34,054
38	TGP Station 264 Charlton	Charlton	Petroleum and Natural Gas Systems	32,834
39	Cleary Flood	Taunton	Power Plants	31,764
40	FITCHBURG WESTMINSTER LANDFILL RECYCLING CENTER	Westminster	Waste	30,720
41	BIOGEN INC	Cambridge	Chemicals	28,268
42	Berkshire Power	Agawam	Power Plants	27,807
43	NORTHEASTERN UNIVERSITY	Boston	Other	27,779
44	General Electric Aviation	Lynn	Other	27,001
45	TGP Station 261 Agawam	Agawam	Petroleum and Natural Gas Systems	25,945
46	Skyworks Solutions, Inc.	Woburn	Other	24,117
47	NEWARK AMERICA	Fitchburg	Pulp and Paper	23,288
48	Wyman-Gordon Company	North Grafton	Other	22,168
49	MASSPORT LOGAN AIRPORT	East Boston	Other	19,750
50	Potter	Braintree	Power Plants	18,347
51	Dartmouth Power	Dartmouth	Power Plants	17,608
52	Stony Brook	Ludlow	Power Plants	17,081
53	DISTRIGAS OF MASSACHUSETTS LLC	Everett	Petroleum and Natural Gas Systems	11,382
54	Pittsfield Generating	Pittsfield	Power Plants	10,631
55	NORTHAMPTON LANDFILL	Northampton	Waste	10,523
56	CHICOPEE SANITARY LANDFILL	Chicopee	Waste	5,417
57	SOUTHBRIDGE RECYCLING & DISPOSAL PARK	Southbridge	Waste	4,476
58	Middleborough Landfill	Middleborough	Waste	3,751
59	MARTONE LANDFILL & GAS GENERATING FACILITY	Barre	Waste	2,756
60	TAUNTON SANITARY LANDFILL	Taunton	Waste	1,910
61	PLAINVILLE LANDFILL	Plainville	Waste	1,661
62	GRANBY SANITARY LANDFILL	Granby	Waste	1,138
63	HALIFAX LANDFILL	Halifax	Waste	866

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.

Search any facility

emissionhub.cc's live search looks up any EPA-reporting facility by name and state, and the diligence brief turns a facility's reported tonnage into the checks an offset buyer would run. Pro ($4, 30-day pass) shows 15 facilities per search instead of 5.

Search facility emissions