E Environmental DataSustainability / ESG Information

Item Unit FY2019 FY2020 FY2021 FY2022
JERA in Japan *1
Installed capacity by source *2 MW 65,476 66,126 59,893 57,210
Coal MW 7,300 7,950 7,950 9,020
Gas MW 48,126 48,126 42,943 43,590
Others MW 10,050 10,050 9,000 4,600
Average operating life of power generation facilities *2 years 33 33 30 28
Coal years 18 17 18 17
Gas years 32 33 29 29
Others years 42 43 43 38
Average availability factor of power generation facilities % 47.8 43.8 43.5 45.5
Coal % 79.1 69.1 82.7 77.5
Gas % 52.6 49.0 46.2 48.6
Total thermal power generation efficiency (low heating value) % 50.1 49.7 49.2 48.7
Coal % 41.5 41.1 42.1 40.5
Gas % 52.7 51.8 51.7 52.1
Thermal Power Generation Efficiency Benchmark A(Energy Conservation Act) *3 ー 1.002 1.000 1.003 1.007
Thermal Power Generation Efficiency Benchmark B(Energy Conservation Act) *3 % 46.8 46.8 46.7 46.8
Fuel consumption
Coal *4 million t 17 16 20 21 ★
Oil million kL 0.34 0.05 0.04 0.04 ★
LNG, LPG million t 29 27 26 24 ★
Natural gas billion Nm3 2 2 2 2 ★
Biomass *5 million t 0.4 0.4 0.4 0.5 ★
Net electricity generation billion kWh 265 245 247 235 ★
Gas sales volume million t 3 3 4 4
Total energy consumption (crude oil equivalent) million kL 55 51 51 50
Purchased electricity　 million kWh 175 162 86 73
Greenhouse gas (GHG) emissions associated with power generation business (Scope 1) *6 thousand t-CO2 124,629 114,952 121,098 118,694 ★
CO2 emissions thousand t-CO2 124,501 114,833 120,948 118,546 ★
CH4 (methane) emissions thousand t-CO2 14 11 11 16
N2O (nitrous oxide) emissions thousand t-CO2 109 101 119 125
SF6 (sulfur hexafluoride) emissions
*7		 thousand t-CO2 4 6 23 7
HFC (CFC alternative) emissions *7 thousand t-CO2 0.6 0.4 0.3 0.7
CO2 emissions associated with purchased electricity consumption (Scope 2) *8 thousand t-CO2 79 77 38 56 ★
Other indirect CO2 emissions (Scope 3) thousand t-CO2 31,993 30,413 32,508 31,208
Purchased goods and services thousand t-CO2 0.07 0.04 0.04 0.04
Capital goods thousand t-CO2 768 708 902 768
Fuel- and energy-related activities *9 thousand t-CO2 22,777 21,083 21,034 20,035 ★
Upstream transportation and distribution thousand t-CO2 25 21 28 29
Waste generated in operations thousand t-CO2 165 171 219 232
Business travel thousand t-CO2 0.6 0.6 0.6 0.6
Employee commuting thousand t-CO2 1 1 2 2
Upstream leased assets thousand t-CO2 ー ー ー ー
Downstream transportation and distribution thousand t-CO2 ー ー ー ー
Processing of sold products thousand t-CO2 ー ー ー ー
Use of sold products thousand t-CO2 8,255 8,428 10,323 10,142
End-of-life treatment of sold products thousand t-CO2 ー ー ー ー
Downstream leased assets thousand t-CO2 ー ー ー ー
Franchises thousand t-CO2 ー ー ー ー
Investments thousand t-CO2 ー ー ー ー
CO2 emissions intensity of power generation *10 kg-CO2/kWh 0.469 0.469 0.489 0.504 ★
SF6 (sulfur hexafluoride) recovery rate (at time of inspection) % 99.8 99.9 99.5 99.5
SF6 (sulfur hexafluoride) capture rate (at time of disposal) % 100.0 99.4 99.0 100.0
SOx (sulfur oxides) emissions thousand t 8 5 6 7
SOx (sulfur oxides) emissions intensity *10 g/kWh 0.03 0.02 0.03 0.03
NOx (nitrogen oxides) emissions thousand t 21 18 18 17
NOx (nitrogen oxides) emissions intensity *10 g/kWh 0.08 0.07 0.07 0.07
Total water intake thousand m3 19,006 18,696 19,147 20,177
Industrial water intake thousand m3 18,116 17,712 18,165 19,038
Tap water intake thousand m3 868 809 864 985
Groundwater intake thousand m3 22 176 118 153
Water withdrawal from water stressed areas thousand m3 0 0 0 0
Gross wastewater volume thousand m3 7,604 7,506 7,188 7,296
COD (chemical oxygen demand) emissions t 21 20 20 21
Industrial wastes and byproducts thousand t 1,991 2,045 2,715 3,077
Disposal by reclamation thousand t 12 13 19 18
Coal ash utilization rate % 99.99 99.99 99.99 99.98
Gypsum waste utilization rate % 100.00 99.94 99.21 99.85
Severe leak cases 0 0 0 0
PCB (polychlorinated biphenyl) transformers and capacitors disposed of units 16 57 78 43
PCB-contaminated insulating oil treated kL 86 510 25 383
Fines or sanctions for violations of environmental laws and regulations cases 0 0 0 0
Domestic / JERA Group *11
Fuel consumption
Coal *4 million t 22 21 24 25 ★
Oil million kL 0.4 0.2 0.2 0.2 ★
LNG, LPG million t 29 27 26 24 ★
Natural gas billion Nm3 2 2 2 2 ★
Blast furnace gas, Cokes oven gas billion Nm3 5 3 6 5 ★
Biomass *5 million t 0.4 0.4 0.4 0.5 ★
Net electricity generation billion kWh 283 260 261 247 ★
Purchased electricity　 million kWh 175 162 86 73
Greenhouse gas (GHG) emissions associated with power generation business (Scope 1) *6 thousand t-CO2 139,573 127,573 131,925 128,552 ★
CO2 emissions thousand t-CO2 139,423 127,437 131,759 128,391 ★
CH4 (methane) emissions thousand t-CO2 14 11 11 16
N2O (nitrous oxide) emissions thousand t-CO2 130 119 132 136
SF6 (sulfur hexafluoride) emissions *7 thousand t-CO2 5 6 23 8
HFC (CFC alternative) emissions *7 thousand t-CO2 0.6 0.4 0.3 0.7
CO2 emissions associated with purchased electricity consumption (Scope 2) *8 thousand t-CO2 80 79 40 60 ★
CO2 emissions intensity of power generation *10 kg-CO2/kWh 0.493 0.491 0.505 0.519 ★
Global / JERA Group *12
CO2 emissions associated with power generation business (Scope 1) thousand t-CO2 161,111 147,915 155,358 153,182
CO2 emissions associated with fuel upstream business (Scope 1) thousand t-CO2 235 348 245 204
CO2 emissions associated with fuel transportation business (Scope 1) thousand t-CO2 297 327 283 258
CO2 emissions intensity of power generation *10 kg-CO2/kWh 0.496 0.493 0.512 0.514
  • Calculation boundary : JERA in Japan, Hitachinaka Generation Co., Inc., JERA Power TAKETOYO LLC, JERA Power Yokosuka LLC, and JERA Power Anegasaki LLC(unless otherwise noted)
  • 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
  • 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 by using the adjusted emission factor for each electric utility published by Ministry of the Environment and Ministry of Economy, Trade and Industry.
    From FY2021, part of purchased electricity is replaced by self-transmission, and the emissions associated with self-transmitted electricity are accounted for as Scope 1 emissions.
  • Calculated by the formula below in accordance with “Basic guidelines on accounting for greenhouse gas emissions throughout the supply chain(ver.2.5)" on "Green Value Chain Platform (Ministry of the Environment website)"
    "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.3.3)" on "Green Value Chain Platform (Ministry of the Environment website)"
    "Emission factor 2"：Cited from "IDEA Ver.2.3"
  • Figures based on net power generation
  • Calculation boundary：The Calculation boundary of *1 plus domestic joint venture power companies. Figures of domestic joint venture power companies are calculated based on JERA's equity share in each company
  • Calculation boundary：The Calculation boundary of *11 plus totals for overseas businesses. Totals for overseas businesses are generally aggregated based on local fiscal years and reporting standards, and calculated based on JERA equity stake

Figures for FY 2022 marked with ★ have been externally assured by KPMG AZSA Sustainability Co.,Ltd.