Dirtiest power plants in Japan by CO₂

#	Plant	Fuel	Country	t CO₂/yr
1	Kobe power station	Coal	Japan	15,426,000
2	Matsuura Kyushu power station	Coal	Japan	14,266,000
3	Matsuura power station	Coal	Japan	14,266,000
4	Haramachi power station	Coal	Japan	11,118,700
5	Misumi power station	Coal	Japan	11,118,700
6	Nakoso power station	Coal	Japan	10,979,300
7	Noshiro power station	Coal	Japan	10,006,400
8	Tomatouatsuma power station	Other	Japan	9,172,600
9	Shinchi power station	Coal	Japan	7,728,400
10	Takehara power station	Coal	Japan	7,227,100
11	J-POWER Tachibana-wan power station	Coal	Japan	7,147,100
12	Shikoku Tachibana-wan power station	Coal	Japan	7,147,100
13	Isogo power station	Coal	Japan	6,671,000
14	Higashi Niigata	Gas	Japan	6,455,600
15	Maizuru power station	Coal	Japan	5,759,600
16	Matsushima power station	Coal	Japan	5,560,300
17	Reihoku power station	Coal	Japan	4,961,000
18	Himeji Daini	Gas	Japan	4,341,700
19	Nanko	Gas	Japan	4,283,700
20	Shin Oita	Gas	Japan	4,276,300
21	Saijo power station	Coal	Japan	4,169,500
22	Toyama Shinko power station	Coal	Japan	4,095,700
23	Nanao-Ohta Shinko power station	Coal	Japan	4,013,300
24	Sakata Kyodo power station	Coal	Japan	3,891,400
25	Tsuruga power station	Coal	Japan	3,839,600
26	Shin Onoda power station	Coal	Japan	3,715,600
27	Kashima	Oil	Japan	3,224,900
28	Kashima Kyodo	Gas	Japan	3,224,900
29	Sakai Port power station	Gas	Japan	2,974,700
30	Kimitsu	Gas	Japan	2,909,200
31	Shin Kokura	Gas	Japan	2,862,100
32	Tobata	Gas	Japan	2,744,200
33	Nanyo Complex power station	Coal	Japan	2,674,000
34	Kin power station	Coal	Japan	2,446,000
35	Yanai	Gas	Japan	2,347,100
36	Osaki CoolGen Project	Coal	Japan	2,117,900
37	Karita power station	Other	Japan	2,112,800
38	Tokuyama Central power station	Other	Japan	2,068,000
39	Fukuyama Joint power station	Gas	Japan	2,052,300
40	Takasago - Softbank Solar Power Plant	Solar	Japan	2,028,100
41	Takasago A	Solar	Japan	2,028,100
42	Takasago power station	Coal	Japan	2,028,100
43	Sakaide	Oil	Japan	1,951,300
44	Naie power station	Coal	Japan	1,945,600
45	Himeji Daiichi	Gas	Japan	1,891,000
46	Ohgishima power station	Gas	Japan	1,816,400
47	Soma Port Gas power station	Gas	Japan	1,755,100
48	Gushikawa power station	Coal	Japan	1,734,400
49	Ishikawa power station	Coal	Japan	1,734,400
50	Niihama Nishi power station	Coal	Japan	1,667,700
51	Tomakomai Mill power station	Coal	Japan	1,614,000
52	Moka power plant	Other	Japan	1,568,600
53	Shin Sendai thermal power station	Other	Japan	1,555,800
54	Senboku Natural Gas power plant	Gas	Japan	1,531,100
55	Nagoya power station	Coal	Japan	1,439,900
56	Oita Co-operative power plant	Gas	Japan	1,432,300
57	Nyugawa power station	Coal	Japan	1,389,800
58	Sunagawa Daini power station	Coal	Japan	1,389,800
59	Kurashiki Joint power station	Gas	Japan	1,335,400
60	Tamashima	Oil	Japan	1,302,150
61	Ube - US Solar Power Plant	Solar	Japan	1,200,850
62	KOBE STEEL KAKOGAWA	Other	Japan	1,163,630
63	Mizushima Energy Center	Coal	Japan	1,152,560
64	Kawasaki Natural Gas power station	Gas	Japan	1,124,450
65	T-Point 2 power station	Other	Japan	988,610
66	Miike power station	Coal	Japan	972,860
67	UBE Industries power station	Other	Japan	970,520
68	Tosa power station	Coal	Japan	928,370
69	Aioi	Oil	Japan	892,440
70	Yawata Works power station	Coal	Japan	851,180
71	Joetsu power station	Gas	Japan	850,790
72	Ishikariwan Shinko power station	Gas	Japan	846,920
73	Itoigawa power station	Coal	Japan	828,330
74	Tokai Kyodo power station	Coal	Japan	828,330
75	Yoshinoura thermal power plant	Gas	Japan	819,530
76	Sendai Tohoku power station	Other	Japan	696,080
77	Ako	Oil	Japan	662,260
78	Gobo	Oil	Japan	662,260
79	Kashima Kita	Oil	Japan	624,240
80	Mizushima MZ power station	Coal	Japan	622,630
81	Wakayama	Gas	Japan	591,380
82	Mizue Thermal power plant	Gas	Japan	582,010
83	Buzen	Oil	Japan	554,090
84	NPI SHIRAOI MILL	Other	Japan	536,350
85	Hachinohe thermal power station	Other	Japan	508,740
86	YOKOHAMA WORKS KANAZAWA	Gas	Japan	497,830
87	MITSUI CHEMICALS OMUTA	Other	Japan	493,200
88	Daicel Otake power station	Coal	Japan	492,000
89	Chiba	Gas	Japan	491,920
90	Chiba Kawatetsu	Gas	Japan	491,920
91	Boyo Kushiro	Solar	Japan	480,530
92	Masuura Kushiro	Solar	Japan	480,530
93	Kaita power station	Coal	Japan	453,850
94	Rengo Kanazu Mill power station	Coal	Japan	433,630
95	Chogoku Air Water Yamaguchi co-fire power station	Coal	Japan	420,010
96	Kansai Sendai power station	Coal	Japan	416,020
97	Mitsubishi Chemical Hiroshima Factory power station	Coal	Japan	405,820
98	Kamisu power station	Coal	Japan	405,790
99	Soma Coal-Biomass power station	Coal	Japan	397,970
100	Kochi Cement Plant power station	Coal	Japan	397,490
101	Date City	Solar	Japan	386,330
102	Shiriuchi power station	Oil	Japan	386,330
103	Shiohama Chemical New power station	Coal	Japan	378,030
104	JFE KEIHIN WORKS	Other	Japan	377,510
105	Yokkaichi	Gas	Japan	322,880
106	UBE Industries Isa Factory power station	Coal	Japan	316,870
107	Nobeoka power station	Other	Japan	313,830
108	Niihama Kita thermal power station	Other	Japan	312,350
109	Tokyo Gas Yokosuka power station	Other	Japan	297,020
110	Hikari Works power station	Coal	Japan	294,630
111	Hachinohe Mill power station	Coal	Japan	269,630
112	Kureha Iwaki Factory power station	Coal	Japan	250,160
113	Anan	Oil	Japan	248,330
114	Marusumi Paper Ohe Mill power station	Other	Japan	244,600
115	MCM HQ Energy Center power station	Other	Japan	242,900
116	Naka green power station	Gas	Japan	227,390
117	Joetsu Green power station	Gas	Japan	227,390
118	Funamachi power plant	Gas	Japan	221,630
119	Torishima Energy Center	Gas	Japan	219,380
120	HIROSHIMA ELPIDA	Gas	Japan	217,580
121	Fukuyama Recyling Power	Waste	Japan	208,260
122	Hofu	Solar	Japan	200,140
123	CHIBA CHISSO	Gas	Japan	189,900
124	MIZUSHIMA AKC	Other	Japan	182,180
125	Meinan Kyodo Energy power station	Coal	Japan	172,330
126	Makiminato Thermal power plant	Oil	Japan	158,940
127	SENDAI REFINERY	Other	Japan	155,130
128	Tokyo Gas Bay power station	Gas	Japan	153,050
129	MARIFU REFINERY	Other	Japan	143,280
130	Ichihara power plant	Other	Japan	140,080
131	Tomakomai - Mitsui Fudosan Solar Power Plant	Solar	Japan	137,980
132	Fukui Thermal power station	Oil	Japan	137,980
133	Toyama Thermal power station	Oil	Japan	137,980
134	Nakasode Clean power station	Other	Japan	135,870
135	Shin Nakasode power station	Other	Japan	135,870
136	Shin-Minato power station	Other	Japan	135,870
137	Ibaraki power plant	Other	Japan	112,521
138	OSAKA REFINERY POWER	Other	Japan	111,827
139	Rinkai power station	Other	Japan	110,477
140	OITA REFINERY	Other	Japan	104,595
141	MITSUI CHEMICALS OSAKA	Other	Japan	97,865
142	Niigata	Solar	Japan	92,782
143	IWAKUNI MILL NPI	Oil	Japan	87,776
144	Onbetsu Solar Power Plant	Solar	Japan	81,678
145	Sumitomo Chiba Food Complex cogeneration power station	Other	Japan	79,232
146	OJI TOMIOKA MILL	Oil	Japan	69,537
147	Hachinohe Taiheiyo	Oil	Japan	69,097
148	Suzukawa Energy Center	Oil	Japan	35,154
149	Nihonkaisui Ako power station	Other	Japan	12,222
150	Mitsubishi Materials Kyushu Plant power station	Oil	Japan	8,278
151	Nebio Kakuda power station	Other	Japan	1,636

Method: ranked from open data — capacity & fuel from WRI Global Power Plant Database (CC BY 4.0); CO₂ from EPA/EU ETS/Climate TRACE; measured CO₂ where reported to US EPA GHGRP, EU ETS or Climate TRACE. Sorted server-side; click any column to re-sort. Company-level data only.