911爆料网

E Environmental DataSustainability / ESG Information

Item Unit FY2021 FY2022 FY2023 FY2024 FY2025
Domestic / 911爆料网 *1
Installed capacity by source *2 MW 59,893 57,210 57,330 59,685 54,953
Coal MW 7,950 9,020 10,320 10,320 10,320
Gas MW 42,943 43,590 44,884 47,224 44,570
Renewable Energy MW ー 0.04 126 141 63
Others MW 9,000 4,600 2,000 2,000 0
Average operating life of power generation facilities *2 Years 30 28 29 29 22
Coal Years 18 17 15 16 17
Gas Years 29 29 29 28 27
Others Years 43 38 42 43 ー
Operational rate of power generation facilities (availability) *3 % 87.6 87.9 82.2 81.9 81.2
Coal % 88.3 83.8 74.4 71.7 72.3
Gas % 87.5 88.9 84.1 84.4 83.3
Total thermal power generation efficiency (low heating value) % 49.2 48.7 48.7 49.3 50.2
Coal % 42.1 40.5 40.0 40.4 42.2
Gas % 51.7 52.1 54.1 53.3 53.7
Thermal Power Generation Efficiency Benchmark A(Energy Conservation Act) *4 ー 1.003 1.007 1.004 1.003 1.010
Thermal Power Generation Efficiency Benchmark B(Energy Conservation Act) *4 % 46.7 46.8 46.8 46.6 47.0
Coal-fired Power Generation Efficiency Index (Energy Conservation Act) *4 % ー 40.8 40.5 40.7 40.7
Fuel consumption
Coal *5 million t 20 21 20 21 21 ★
Oil million kl 0.04 0.04 0.22 0.33 0.04 ★
LNG / LPG million t 26 24 23 22 22 ★
Natural gas billion
Nm3		 2 2 2 1 1 ★
Biomass *6 million t 0.382 0.517 0.460 0.002 0.002 ★
Hydrogen / Ammonia, etc. *7 million t ー ー ー 0.031 0.001 ★
Net electricity generation（Sending-end power） billion
kWh		 247 235 231 226 229 ★
Gas sales volume million t 4 4 4 4 4
Total energy consumption (crude oil equivalent) million kl 51 50 48 48 47
Purchased electricity　 million
kWh		 86 73 180 415 391 ★
Scope1(Greenhouse gas (GHG) emissions associated with power generation business)　*8 thousand
t-CO2		 121,098 118,694 113,930 113,435 112,927 ★
CO2 emissions thousand
t-CO2		 120,948 118,546 113,557 113,090 112,577 ★
CO2 emissions from energy sources thousand
t-CO2		 120,948 118,546 113,429 112,948 112,435
CO2 emissions from non?energy sources thousand
t-CO2		 ー ー 128 142 143
CH4 (methane) emissions thousand
t-CO2		 11 16 30 29 30
N2O (nitrous oxide) emissions thousand
t-CO2		 119 125 310 306 310
SF6 (sulfur hexafluoride) emissions
*9		 thousand
t-CO2		 23 7 8 8 9
HFC (CFC alternative) emissions *9 thousand
t-CO2		 0.3 0.7 24.5 0.3 0.7
Scope 2(CO2 emissions associated with purchased electricity consumption)　*10
Location-based thousand
t-CO2		 39 32 77 176 163 ★
Market-based thousand
t-CO2		 38 56 70 174 181 ★
Scope 3(Other indirect CO2 emissions ) thousand
t-CO2		 32,189 31,895 31,724 30,819 30,258
Category 1：Purchased goods and services thousand
t-CO2		 96 104 133 153 168
Category 2：Capital goods thousand
t-CO2		 467 1,309 1,365 867 252
Category ３: Fuel- and energy-related activities not included in Scope 1 or Scope 2 *11 thousand
t-CO2		 21,034 20,035 19,297 18,875 18,657 ★
Category 4：Upstream transportation and distribution thousand
t-CO2		 28 29 34 38 39
Category 5：Waste generated in operations thousand
t-CO2		 240 275 250 259 257
Category 6：Business travel thousand
t-CO2		 0.6 0.6 0.6 0.6 1
Category 7：Employee commuting thousand
t-CO2		 2 2 2 1 2
Category 8：Upstream leased assets thousand
t-CO2		 ー ー ー ー ー
Category 9：Downstream transportation and distribution thousand
t-CO2		 ー ー ー ー ー
Category 10：Processing of sold products thousand
t-CO2		 ー ー ー ー ー
Category 11：Use of sold products thousand
t-CO2		 10,323 10,142 10,643 10,625 10,883
Category 12：End-of-life treatment of sold products thousand
t-CO2		 ー ー ー ー ー
Category 13：Downstream leased assets thousand
t-CO2		 ー ー ー ー ー
Category 14：Franchises thousand
t-CO2		 ー ー ー ー ー
Category 15：Investments thousand
t-CO2		 ー ー ー ー ー
CO2 emission intensity of power generation *12 kg-CO2
/kWh		 0.489 0.504 0.491 0.499 0.492 ★
SF6 (sulfur hexafluoride) capture rate (at time of inspection) % 99.5 99.5 100.0 98.8 96.0
SF6 (sulfur hexafluoride) capture rate (at time of disposal) % 99.0 100.0 100.0 100.0 99.9
SOx (sulfur oxides) emissions thousand t 6 7 6 7 6
SOx (sulfur oxides) emission intensity *12 g/kWh 0.03 0.03 0.03 0.03 0.03
NOx (nitrogen oxides) emissions thousand t 18 17 15 15 14
NOx (nitrogen oxides) emission intensity *12 g/kWh 0.07 0.07 0.07 0.06 0.06
Total water intake thousand m3 19,147 20,177 21,246 21,277 21,192
Industrial water intake thousand m3 18,165 19,038 19,299 18,986 18,852
Tap water intake thousand m3 864 985 1,885 2,244 2,293
Groundwater intake thousand m3 118 153 62 47 47
Water withdrawal from water-stressed areas thousand m3 0 0 0 0 0
Gross wastewater volume thousand m3 7,188 7,296 10,682 6,998 8,298
COD (chemical oxygen demand) emissions t 20 21 30 34 22
Total waste thousand t 3,019 3,606 3,116 3,204 3,034
Industrial waste thousand t 3,019 3,602 3,115 3,203 3,033
Specially controlled industrial waste（hazardous waste） thousand t 0.4 4.1 0.7 1.0 0.7
Total recycled waste thousand t ー ー 2,844 2,497 2,343
Recycled industrial waste thousand t ー ー 2,843 2,496 2,342
Recycled specially controlled industrial waste (hazardous waste) thousand t ー ー 0.7 1.0 0.7
Total valuable waste thousand t ー ー ー 703 687
Valuable industrial waste thousand t ー ー ー 703 687
Valuable specially controlled industrial waste (hazardous waste) thousand t ー ー ー 0 0
Coal ash utilization rate % 99.10 98.51 98.23 99.99 100.00
Generated coal ash thousand t 2,206 2,578 2,278 2,330 2,035
Recycled coal ash thousand t 2,069 2,375 2,086 2,233 1,960
Valuable coal ash thousand t 117 165 152 96 76
Gypsum utilization rate % 99.25 99.91 99.72 99.98 99.99
Generated gypsum thousand t 481 535 521 572 590
Recycled gypsum thousand t 0.2 3.6 0.9 2.1 0.3
Valuable gypsum thousand t 478 531 518 570 589
Waste plastic utilization rate % 98.56 97.16 97.54 96.99 95.08
Generated waste plastic thousand t 0.4 0.5 0.3 0.2 0.2
Recycled waste plastic thousand t 0.4 0.5 0.3 0.2 0.2
Valuable waste plastic thousand t 0 0 0 0 0
Waste to landfill thousand t 19 18 19 4 4
Soot and dust disposal volume thousand t 1,918 2,116 1,985 1,214 331
Number of severe leaks Cases 0 0 0 0 0
Number of PCB (polychlorinated biphenyl) transformers and capacitors disposed of Units 78 43 86 69 17
Volume of PCB-contaminated insulating oil treated kl 25 383 140 61 51
Number of fines or sanctions for violations of environmental laws and regulations Cases 0 0 0 0 0
Item Unit FY2021 FY2022 FY2023 FY2024 FY2025
Domestic / 911爆料网 Group *13
Installed capacity by source *2 MW 62,682 59,998 60,119 62,474 57,567
Coal MW 10,739 11,809 13,109 12,032 12,032
Gas MW 42,943 43,590 44,884 48,300 45,471
Renewable Energy MW ー 0.04 126 141 63
Others MW 9,000 4,600 2,000 2,000 0
Fuel consumption
Coal *5 million t 24 25 24 25 26 ★
Oil million kl 0.20 0.25 0.33 0.44 0.05 ★
LNG / LPG million t 26 24 23 22 22 ★
Natural gas billion
Nm3		 2 2 2 1 1 ★
Blast furnace gas / Coke oven gas billion
Nm3		 6 5 5 4 5 ★
Biomass *6 million t 0.382 0.517 0.498 0.022 0.025 ★
Hydrogen / Ammonia, etc. million t ー ー ー 0.031 0.001 ★
Net electricity generation（Sending-end power） billion
kWh		 261 247 246 242 243 ★
Purchased electricity million
kWh		 86 73 187 422 401 ★
Scope1(Greenhouse gas (GHG) emissions associated with power generation business)　*8 thousand
t-CO2		 131,925 128,552 125,945 126,461 125,257 ★
CO2 emissions thousand
t-CO2		 131,759 128,391 125,544 126,085 124,876 ★
CO2 emissions from energy sources thousand
t-CO2		 131,759 128,391 125,382 125,904 124,717
CO2 emissions from non?energy sources thousand
t-CO2		 ー ー 162 181 159
CH4 (methane) emissions thousand
t-CO2		 11 16 31 30 30
N2O (nitrous oxide) emissions thousand
t-CO2		 132 136 338 337 340
SF6 (sulfur hexafluoride) emissions *9 thousand
t-CO2		 23 8 8 8 10
HFC (CFC alternative) emissions *9 thousand
t-CO2		 0.3 0.7 24.5 0.3 1
Scope 2(CO2 emissions associated with purchased electricity consumption)　*10
Location-based thousand
t-CO2		 39 32 80 177 185 ★
Market-based thousand
t-CO2		 40 60 73 177 185 ★
Scope 3(Other indirect CO2 emissions ) thousand
t-CO2		 34,041 33,497 33,332 32,390 31,867
Category 1：Purchased goods and services thousand
t-CO2		 103 114 139 160 174
Category 2：Capital goods thousand
t-CO2		 498 1,339 1,375 888 269
Category ３: Fuel- and energy-related activities not included in Scope 1 or Scope 2 *11 thousand
t-CO2		 22,814 21,567 20,855 20,376 20,205 ★
Category 4：Upstream transportation and distribution thousand
t-CO2		 36 37 40 48 49
Category 5：Waste generated in operations thousand
t-CO2		 264 297 277 291 283
Category 6：Business travel thousand
t-CO2		 0.6 0.7 0.7 0.7 0.7
Category 7：Employee commuting thousand
t-CO2		 2 2 2 2 2
Category 8：Upstream leased assets thousand
t-CO2		 ー ー ー ー ー
Category 9：Downstream transportation and distribution thousand
t-CO2		 ー ー ー ー ー
Category 10：Processing of sold products thousand
t-CO2		 ー ー ー ー ー
Category 11：Use of sold products thousand
t-CO2		 10,323 10,142 10,643 10,625 10,883
Category 12：End-of-life treatment of sold products thousand
t-CO2		 ー ー ー ー ー
Category 13：Downstream leased assets thousand
t-CO2		 ー ー ー ー ー
Category 14：Franchises thousand
t-CO2		 ー ー ー ー ー
Category 15：Investments thousand
t-CO2		 ー ー ー ー ー
CO2 emission intensity of power generation *12 kg-CO2
/kWh		 0.505 0.519 0.510 0.520 0.512 ★
Item Unit FY2021 FY2022 FY2023 FY2024 FY2025
Global / 911爆料网 Group *14
Installed capacity by source *2 MW 73,218 69,682 70,892 73,745 69,466
Coal MW 13,051 13,847 15,302 14,272 13,613
Gas MW 49,820 49,866 51,160 54,104 52,234
Renewable Energy MW 1,059 1,081 2,144 1,496 2,255
Others MW 9,287 4,889 2,286 4,984 1,364
CO2 emissions within Scope 1 related to power generation business (CO? emissions from energy sources) thousand
t-CO2		 155,259 154,073 145,470 148,427 143,763
CO2 emissions within Scope 1 related to upstream business thousand
t-CO2		 245 204 275 247 238
CO2 emissions within Scope 1 related to fuel transportation business thousand
t-CO2		 283 258 287 207 366
CO2 emission intensity of power generation *12 *15 kg-CO2
/kWh		 0.512 0.517 0.508 0.514 0.504
  • Calculation boundary (unless otherwise noted) : 911爆料网 in Japan, Hitachinaka Generation Co., Inc., 911爆料网 Power TAKETOYO LLC, 911爆料网 Power Yokosuka LLC, 911爆料网 Power Anegasaki LLC and Goi United Generation LLC
  • Calculated based on our own facilities as of the end of the fiscal year (March 31) of the year in which the data was collected. Overseas businesses are calculated based on facilities owned as of the end of the local fiscal year.
  • Calculated from the percentage of time excluding planned internal and external outage time
  • Figures for 911爆料网 operations in Japan
  • Totaled on a wet coal basis (ar: as received)
  • Totaled on a dry basis (ad: air dried)
  • Totaled on an ammonia weight basis
  • Calculated based on the Act on Promotion of Global Warming Countermeasures.
  • Calendar year totals
  • Calculated using the emission factors published by the Ministry of the Environment and the Ministry of Economy, Trade and Industry: “Emission Factors by Electric Power Company” and “Emission Factors by Heat Supply Company”
  • Calculated by the formula below in accordance with “Basic guidelines on accounting for greenhouse gas emissions throughout the
    supply chain(ver.2.8)" on "Green Value Chain Platform (Ministry of the Environment website)"
    Category 3： "Electricity received from other companies"×"Emission factor 1"+"Fuel consumption"×"Emission factor 2"
    "Emission factor 1" Cited from "Emission factor database for corporate GHG emissions accounting over the supply chain (Ver.3.6)" on "Green Value Chain Platform (Ministry of the Environment website)"
    "Emission factor 2" AIST-IDEA Ver. 4.0 Standard Edition (2026/05/15), taken from IDEA Laboratory, Safety Science Research Division, The National Institute of Advanced Industrial Science and Technology.
  • Figures based on net power generation
  • Calculation boundary：The Calculation boundary of *1 plus joint venture figures.　For the joint venture, our share is calculated on a proportionate basis due to joint control
  • Calculation boundary：The Calculation boundary of *13 plus totals for overseas businesses.　Overseas businesses are generally consolidated based on the local fiscal year and local reporting standards, with the Company's share calculated on a proportionate basis according to its ownership percentage
  • The data is currently under review, and the figures may be subject to change based on the results of the review

Figures for FY 2025 marked with ★ have been externally assured
Independent Assurance Report Link： 911爆料网_Independent_Assurance_Report