E Environmental DataSustainability / ESG Information

Item Unit FY2020 FY2021 FY2022 FY2023 FY2024
Domestic / JERA *1
Installed capacity by source *2 MW 66,126 59,893 57,210 57,330 59,685
Coal MW 7,950 7,950 9,020 10,320 10,320
Gas MW 48,126 42,943 43,590 44,884 47,224
Renewable Energy MW ー ー 0.04 126 141
Others MW 10,050 9,000 4,600 2,000 2,000
Average operating life of power generation facilities *2 Years 33 30 28 29 29
Coal Years 17 18 17 15 16
Gas Years 33 29 29 29 28
Others Years 43 43 38 42 43
Operational rate of power generation facilities (availability) *3 % 87.5 87.6 87.9 82.2 81.9
Coal % 85.2 88.3 83.8 74.4 84.4
Gas % 87.9 87.5 88.9 84.1 71.7
Total thermal power generation efficiency (low heating value) % 49.7 49.2 48.7 48.7 49.3
Coal % 41.1 42.1 40.5 40.0 40.4
Gas % 51.8 51.7 52.1 54.1 53.3
Thermal Power Generation Efficiency Benchmark A(Energy Conservation Act) *4 ー 1.000 1.003 1.007 1.004 1.003
Thermal Power Generation Efficiency Benchmark B(Energy Conservation Act) *4 % 46.8 46.7 46.8 46.8 46.6
Coal-fired Power Generation Efficiency Index (Energy Conservation Act) *4 % ー ー 40.8 40.5 40.7
Fuel consumption
Coal *5 million t 16 20 21 20 21 ★
Oil million kl 0.05 0.04 0.04 0.22 0.33 ★
LNG / LPG million t 27 26 24 23 22 ★
Natural gas billion Nm3 2 2 2 2 1 ★
Biomass *6 million t 0.4 0.4 0.5 0.5 0.002 ★
Hydrogen / Ammonia, etc. million t ー ー ー ー 0.05 ★
Net electricity generation（Sending-end power） billion kWh 245 247 235 231 226 ★
Gas sales volume million t 3 4 4 4 4
Total energy consumption (crude oil equivalent) million kl 51 51 50 48 48
Purchased electricity　 million kWh 162 86 73 180 415 ★
Scope1(Greenhouse gas (GHG) emissions associated with power generation business)　*7 thousand t-CO2 114,952 121,098 118,694 113,756 113,244 ★
CO2 emissions thousand t-CO2 114,833 120,948 118,546 113,384 112,899 ★
CH4 (methane) emissions thousand t-CO2 11 11 16 30 29
N2O (nitrous oxide) emissions thousand t-CO2 101 119 125 310 306
SF6 (sulfur hexafluoride) emissions
*8		 thousand t-CO2 6 23 7 8 8
HFC (CFC alternative) emissions *8 thousand t-CO2 0.4 0.3 0.7 24.5 0.3
Scope 2(CO2 emissions associated with purchased electricity consumption)　*9
Location-based thousand t-CO2 76 39 32 77 176 ★
Market-based thousand t-CO2 77 38 56 70 174 ★
Scope 3(Other indirect CO2 emissions ) thousand t-CO2 30,545 32,189 31,895 31,724 30,819
Category 1：Purchased goods and services thousand t-CO2 96 96 104 133 153
Category 2：Capital goods *10 thousand t-CO2 729 467 1,309 1,365 867 ★
Category ３: Fuel- and energy-related activities not included in Scope 1 or Scope 2 *10 thousand t-CO2 21,083 21,034 20,035 19,297 18,875 ★
Category 4：Upstream transportation and distribution thousand t-CO2 21 28 29 34 38
Category 5：Waste generated in operations thousand t-CO2 185 240 275 250 259
Category 6：Business travel thousand t-CO2 0.6 0.6 0.6 0.6 0.6
Category 7：Employee commuting thousand t-CO2 1 2 2 2 1
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 8,428 10,323 10,142 10,643 10,625
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 *11 kg-CO2/kWh 0.469 0.489 0.504 0.491 0.499 ★
SF6 (sulfur hexafluoride) capture rate (at time of inspection) % 99.9 99.5 99.5 100.0 98.8
SF6 (sulfur hexafluoride) capture rate (at time of disposal) % 99.4 99.0 100.0 100.0 100.0
SOx (sulfur oxides) emissions thousand t 5 6 7 6 7
SOx (sulfur oxides) emission intensity *11 g/kWh 0.02 0.03 0.03 0.03 0.03
NOx (nitrogen oxides) emissions thousand t 18 18 17 15 15
NOx (nitrogen oxides) emission intensity *11 g/kWh 0.07 0.07 0.07 0.07 0.06
Total water intake thousand m3 18,696 19,147 20,177 21,246 21,277
Industrial water intake thousand m3 17,712 18,165 19,038 19,299 18,986
Tap water intake thousand m3 809 864 985 1,885 2,244
Groundwater intake thousand m3 176 118 153 62 47
Water withdrawal from water-stressed areas thousand m3 0 0 0 0 0
Gross wastewater volume thousand m3 7,506 7,188 7,296 10,682 6,998
COD (chemical oxygen demand) emissions t 20 20 21 30 34
Total waste thousand t 2,290 3,019 3,606 3,116 3,204
Industrial waste thousand t 2,290 3,019 3,602 3,115 3,203
Specially controlled industrial waste（hazardous waste） thousand t 0.7 0.4 4.1 0.7 1.0
Total recycled waste thousand t ー ー ー 2,844 2,497
Recycled industrial waste thousand t ー ー ー 2,843 2,496
Recycled specially controlled industrial waste (hazardous waste) thousand t ー ー ー 0.7 1.0
Total valuable waste thousand t ー ー ー ー 703
Valuable industrial waste thousand t ー ー ー ー 703
Valuable specially controlled industrial waste (hazardous waste) thousand t ー ー ー ー 0
Coal ash utilization rate % 99.99 99.10 98.51 98.23 99.99
Generated coal ash thousand t 1,584 2,206 2,578 2,278 2,330
Recycled coal ash thousand t 1,446 2,069 2,375 2,086 2,233
Valuable coal ash thousand t 138 117 165 152 96
Gypsum utilization rate % 99.97 99.25 99.91 99.72 99.98
Generated gypsum thousand t 388 481 535 521 572
Recycled gypsum thousand t 0.0 0.2 3.6 0.9 2.1
Valuable gypsum thousand t 387 478 531 518 570
Waste plastic utilization rate % ー ー ー ー 97
Generated waste plastic thousand t 0.4 0.4 0.5 0.3 0.2
Recycled waste plastic thousand t ー ー ー 0.3 0.2
Valuable waste plastic thousand t ー ー ー ー 0
Waste to landfill thousand t 13 19 18 19 4
Soot and dust disposal volume thousand t 1,351 1,918 2,116 1,985 1,214
Number of severe leaks Cases 0 0 0 0 0
Number of PCB (polychlorinated biphenyl) transformers and capacitors disposed of Units 57 78 43 86 69
Volume of PCB-contaminated insulating oil treated kl 510 25 383 140 61
Number of fines or sanctions for violations of environmental laws and regulations Cases 0 0 0 0 0
Item Unit FY2020 FY2021 FY2022 FY2023 FY2024
Domestic / JERA Group *12
Installed capacity by source *2 MW 68,915 62,682 59,998 60,119 62,474
Coal MW 10,739 10,739 11,809 13,109 12,032
Gas MW 48,126 42,943 43,590 44,884 48,300
Renewable Energy MW ー ー 0.04 126 141
Others MW 10,050 9,000 4,600 2,000 2,000
Fuel consumption
Coal *5 million t 21 24 25 24 25 ★
Oil million kl 0.2 0.2 0.2 0.3 0.4 ★
LNG / LPG million t 27 26 24 23 22 ★
Natural gas billion Nm3 2 2 2 2 1 ★
Blast furnace gas / Coke oven gas billion Nm3 3 6 5 5 4 ★
Biomass *6 million t 0.4 0.4 0.5 0.5 0.02 ★
Hydrogen / Ammonia, etc. million t ー ー ー ー 0.05 ★
Net electricity generation（Sending-end power） billion kWh 260 261 247 246 242 ★
Purchased electricity million kWh 162 86 73 187 422 ★
Scope1(Greenhouse gas (GHG) emissions associated with power generation business)　*7 thousand t-CO2 127,573 131,925 128,552 125,737 126,232 ★
CO2 emissions thousand t-CO2 127,437 131,759 128,391 125,336 125,855 ★
CH4 (methane) emissions thousand t-CO2 11 11 16 31 30
N2O (nitrous oxide) emissions thousand t-CO2 119 132 136 338 337
SF6 (sulfur hexafluoride) emissions *8 thousand t-CO2 6 23 8 8 8
HFC (CFC alternative) emissions *8 thousand t-CO2 0.4 0.3 0.7 24.5 0.3
Scope 2(CO2 emissions associated with purchased electricity consumption)　*9
Location-based thousand t-CO2 76 39 32 80 177 ★
Market-based thousand t-CO2 79 40 60 73 177 ★
Scope 3(Other indirect CO2 emissions ) thousand t-CO2 31,911 34,041 33,497 33,332 32,390
Category 1：Purchased goods and services thousand t-CO2 102 103 114 139 160
Category 2：Capital goods *10 thousand t-CO2 752 498 1,339 1,375 888 ★
Category ３: Fuel- and energy-related activities not included in Scope 1 or Scope 2 *10 thousand t-CO2 22,379 22,814 21,567 20,855 20,376 ★
Category 4：Upstream transportation and distribution thousand t-CO2 33 36 37 40 48
Category 5：Waste generated in operations thousand t-CO2 215 264 297 277 291
Category 6：Business travel thousand t-CO2 0.6 0.6 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 8,428 10,323 10,142 10,643 10,625
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 *11 kg-CO2/kWh 0.491 0.505 0.519 0.510 0.520 ★
Item Unit FY2020 FY2021 FY2022 FY2023 FY2024
Global / JERA Group *13
Installed capacity by source *2 MW 79,027 73,226 69,678 70,892 73,745
Coal MW 12,233 13,051 13,847 15,302 14,272
Gas MW 55,918 49,820 49,866 51,160 53,894
Renewable Energy MW 682 1,068 1,078 2,145 2,226
Others MW 10,194 9,286 4,887 2,285 3,353
CO2 emissions within Scope 1 related to power generation business thousand t-CO2 147,915 155,358 153,182 150,993 150,035
CO2 emissions within Scope 1 related to upstream business thousand t-CO2 348 245 204 275 247
CO2 emissions within Scope 1 related to fuel transportation business thousand t-CO2 327 283 258 287 207
CO2 emission intensity of power generation *11 kg-CO2/kWh 0.493 0.512 0.514 0.515 0.521
  • Calculation boundary (unless otherwise noted) : JERA in Japan, Hitachinaka Generation Co., Inc., JERA Power TAKETOYO LLC, JERA Power Yokosuka LLC, JERA Power Anegasaki LLC, Goi United Generation LLC and Green Power Ishikari GK
  • 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 JERA operations in Japan
  • Totaled on a wet coal basis (ar: as received)
  • Totaled on a dry basis (ad: air dried)
  • 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.2.7)" on "Green Value Chain Platform (Ministry of the Environment website)"
    Category 2： "Increase in book cost of property, plant and equipment (excluding land and construction in progress) and intangible assets (software, etc.)"×"Emission factor 1"
    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.3.5)" on "Green Value Chain Platform (Ministry of the Environment website)"
    "Emission factor 2" AIST-IDEA Ver. 3.5.1 Standard Edition (2025/05/30), 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 *12 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

Figures for FY 2024 marked with ★ have been externally assured
Independent Assurance Report Link： JERA_Independent_Assurance_Report