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ESG Data

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Environmental Performance DataThird-party verification completed. Osaka Gas underwent a third party verification by Bureau Veritas Japan CO., Ltd.

Aspects Determined as Materiality

  • Emissions,Effluents and Waste

Environmental Policy

Environmental Policy

No. of Affiliated Companies* of which data compiled

FY2015 FY2016 FY2017 FY2018
70 69 65 59
* Affiliated Companies (58 companies)
Of Osaka Gas's 138 consolidated subsidiaries, 58 companies are subject to the calculation of GHG emissions. Those housed in office buildings as tenants and whose environmental data are difficult to grasp and whose environmental effects are minimal are not subject to such calculation. Also excluded from the calculation are overseas companies whose environmental impacts are minimal. However, the aggregate number of companies may differ by fiscal year and by item due to company mergers and others.
Affiliates subject to compilation of environmental performance data (FY2018)

(As of March 31, 2018)

Group companies No. of companies Company names
Energy Resources & International Business Unit 1 Marianas Energy Company LLC
LNG Terminal & Power Generation, Engineering Business Unit 14 Gas and Power Co., Ltd., Nakayama Joint Power Generation Co., Ltd., Nakayama Nagoya Joint Power Generation Co., Ltd., Hirogawa Myojinyama Wind Farm Co., Hayama Wind Farm, Yura Wind Farm Development, Hizen Wind Farm, Hirao Wind Farm, Senboku Natural Gas Power Generation, Osaka Gas Liquid Co., Ltd., Cold Air Products Co. Ltd., Cryo-Air Co. Ltd., Kinki Carbonic Co., Ltd., Gasnet Co. Ltd.
Pipeline Business Unit 2 Kinpai Co., Ltd., Osaka Gas Renotech Co., Ltd.
Residential Energy Business Unit 12 Living Maintenance Service Hokuto Co., Ltd., Living Maintenance Service Osaka Co., Ltd., Osaka Gas Cooking School Co., Ltd., Create Kansai Co., Ltd., Osaka Gas Customer Relations Co., Ltd., Aqua Brain Co., Ltd., Kansai Business Information Inc., Osaka Gas Housing & Equipment Co., Ltd., Osaka Gas Security Service Co., Ltd., Osaka Gas LPG Co., Ltd., Nissho Gas Supply Co., Ltd., Daiya Nensho Co., Ltd.
Commercial & Industrial Energy Business Unit 9 OGCTS Co., Ltd., G & M Energy Service Co., Ltd., Ashiyahama Energy Service Co., Ltd., Rokko Island Energy Service Co., Ltd., Enetec Kyoto Co., Ltd., Enetec Osaka Co., Ltd., Nabari Kintetsu Gas Co., Ltd., Toyooka Energy Co., Ltd., Shingu Gas Ltd.
Group Headquarters 8 OG Sports Co., Ltd., Osaka Gas Autoservice Co., Ltd., Osaka Gas Finance Co., Ltd., Osaka Gas Business Create Co., Ltd., Active Life Inc., KRI Inc., Osaka Gas Engineering Co., Ltd., i-support Co., Ltd.
Osaka Gas Urban Development Group 3 Osaka Gas Urban Development Co., Ltd., Osaka Gas Facilities Corp., Kyoto Research Park Co., Ltd.,
OGIS Research Institute Group 6 OGIS-RI Co., Ltd., Sakura Information Systems Co., Ltd., SIS Techno-Service Co., Ltd., JOE Corp., Ltd., Ube Information Systems Inc., System Answer Inc.
Osaka Gas Chemicals Group 3 Osaka Gas Chemicals Co., Ltd., Minabe Chemical Industries Ltd., Mizusawa Industrial Chemicals, Ltd.
Total 58

Environmental Activities Policy

Environmental Activities Policy

Environmental Action Targets

FY2015 Results FY2016 Results FY2017 Results FY2018 Results Targets for FY2021
Gas business Environmental Management Efficiency (yen / 1,000 m³)*1 60 59 52.5 11.6 (46.6)*2 14.2
CO2 emissions per 1 million m³ of gas produced (t-CO2 / 1 million m³)*3 10.9 11.7 10.5 9.6 11.7
CO2 emissions per 1,000 m² of floor space of office buildings (t-CO2 / 1,000m²) 65.6 61.8 61.0 54.7 56.5
Industrial waste from LNG terminals (final disposal rate) (%) 0.2 0.3 0.1 0.1 1% or less
Industrial waste from facilities other than LNG terminals (final disposal rate) (%) 1.3 0.9 0.7 0.8 1% or less
General waste (final disposal rate) (%) 2.3 2.4 2.6 2.3 3% or less
Excavated soil (final disposal rate) (%) 1.2 1.3 1.4 0.4 1% or less
Polyethylene (PE) pipes (recycling rate) (%) 100 100 100 100 100%
Gas meters (reuse rate) (%) 99.4 99.3 99.6 99.5 98% or more
Group companies Group companies' businesses CO2 emissions per electricity generated ▲32% ▲34% ▲33% ▲32% 15% decrease compared to FY2009
Other businesses (CO2 emissions per sales) (t-CO2 / 10 million yen) 7.7 8.7 8.9 9.2 8.2
Industrial waste / general waste (final disposal rate)*4 6.7 8.4 9.5 3.3 4% or less
Amount of CO2 emissions reduced by the entire Group (t-CO2) - - - 0.61 million tons 7 million tons

The CO2 emission coefficient for the purchased electricity used to calculate the environmental management efficiency rate was 0.69 kg-CO2/kWh until FY2017 and 0.65 kg-CO2/kWh for FY2018.

*1 Environmental Management Efficiency
The rate until FY2017 was calculated using the LIME2 coefficient in terms of a certain volume of gas sold. The rate for FY2018 was calculated using the latest LIME figure in terms of a certain volume of gas produced.
*2 Figure shown in ( )
The FY2018 figure shown in the parentheses is a calculation based on the calculation formula used until FY2017.
*3 CO2 emissions per a certain volume of gas produced
Figures until FY2017 represent CO2 emissions per gas sales volume.
*4 Industrial waste / general waste (final disposal rate)
Until FY2017, core companies were subject to calculation of final disposal rates. In FY2018, 57 companies among the 138 consolidated subsidiaries were subject to calculation of final disposal rates. Those housed in office buildings as tenants and whose environmental data are difficult to grasp and whose environmental effects are minimal were not subject to such calculation. Also excluded from the calculation were overseas companies. The number of companies subject to calculation may vary depending on year due to corporate merger and the like.

Response to Climate Change (management of resources and emissions)

Climate change response policy

Climate change response policy

Energy consumption

FY2015 FY2016 FY2017 FY2018
Consumption of non-renewable energy*1 73,014,982 72,907,137 76,985,661 89,404,762
  Osaka Gas 4,032,098 3,512,300 4,505,103 4,518,770
Affiliates 68,982,884 69,394,837 72,480,558 84,885,991
Electricity and fuel consumption Electricity consumption (1,000 kWh) 412,186 443,634 419,049 414,691
Osaka Gas 132,257 136,368 117,057 109,715
Affiliates 279,929 307,266 301,992 304,976
Natural gas consumption (1,000 m³) 1,303,807 1,314,685 1,408,603 1,599,016
Osaka Gas*2 63,781 50,092 79,427 81,614
Affiliates 1,240,026 1,264,593 1,329,176 1,517,402
Other fuel consumption (coal, heavy oil, etc.) (GJ) 10,305,594 9,323,499 9,554,074 13,493,898
Osaka Gas 5,116 11,998 2,380 1,258
Affiliates 10,300,478 9,311,501 9,551,695 13,492,641
Vehicle fuel consumption Gasoline (kl) 2,767 2,633 2,509 2,523
Osaka Gas 967 917 878 833
Affiliates 1,801 1,716 1,632 1,690
City gas consumption (1,000 m³) 304 256 181 141
Osaka Gas 279 238 167 125
Affiliates 25 18 14 16
Diesel oil (kl) 575 748 738 332
Osaka Gas 57 87 106 111
Affiliates 518 661 632 221
LPG (1,000 m³) 71 270 232 20
Osaka Gas 0 0 0 0
Affiliates 71 270 232 20
Heavy oil, etc. (GJ) 0 0 0 0
Osaka Gas 0 0 0 0
Affiliates 0 0 0 0
*1 Calculation of energy consumption
Per-unit calorific values listed below are used in calculating the energy being used.
  Purchased
electricity
Gas Gas before
calorific value
adjustment process
Gasoline Diesel oil LPG LNG Heavy fuel
oil A
Kerosene Coal
Per unit calorific value 9.97
GJ / 1,000 kWh
45
GJ / 1,000 Nm³
40.9
GJ / 1,000 Nm³
34.6
GJ / kl
37.7
GJ / kl
104.3
GJ / 1,000 m³
54.6
GJ / t
39.1
GJ / kl
36.7
GJ / kl
25.7
GJ / t
Purchased electric power: Ordinance for Enforcement of the Act on the Rational Use of Energy
City gas: based on data released by Osaka Gas
Other fuels: based on laws and ordinances instituted to promote measures to combat global warming
*2 Amount of natural gas used
Includes city gas which adjusted heat quantity.
*3 Calculation of reduction in energy consumption
Representing gap from previous year

Atmospheric emissions

Greenhouse gas emissions (Scope 1 and 2)

Greenhouse gases subject to calculation are CO2, methane (CH4), N2O and chlorofluorocarbons (HFC).

FY2015 FY2016 FY2017 FY2018
GHG emissions*1 (t-CO2e) 4,202,876 4,164,377 4,362,821 5,158,539
Scope 1   3,916,764   3,857,405   4.089,712   4,888,261
Scope 2 286,112 306,972 273,109 270,278
  Osaka Gas 239,957 212,483 258,600 258,682
Scope 1   148,688   118,377   182,500   187,354
Scope 2 91,269 94,106 76,100 71,328
  LNG terminal 90,381 93,476 87,641 84,275
Power plant 91,681 65,408 120,495 124,035
District heating and cooling 11,968 10,751 10,736 9,580
Offices 45,928 42,849 39,728 40,791
Affiliates 3,962,919 3,951,893 4,104,220 4,899,857
Scope 1   3,768,076   3,739,028   3,907,212   4,700,907
Scope 2 194,844 212,865 197,009 198,950
  Power generation 3,666,370 3,621,606 3,782,596 4,581,211
District heating and cooling 111,850 106,720 107,817 103,723
Other 184,700 223,568 213,808 214,923
GHG emission for comparison*2 (t-CO2e)
Reference: grasping of the situation (t-CO2e)
4,141,085 4,088,670 4,283,378 5,073,477
Scope 1   3,916,764   3,857,405   4,089,712   4,888,261
Scope 2 224,321 231,265 193,666 185,216
  Osaka Gas 217,738 184,715 238,595 239,244
Scope 1   148,688   118,377   182,500   187,354
Scope 2 69,050 66,337 56,095 5,1890
  LNG terminal 74,724 73,371 74,972 72,363
Power plant 91,519 65,161 120,309 123,816
District heating and cooling 11,450 10,390 10,477 9,132
Offices 40,045 35,792 32,837 33,932
Affiliates 3,923,347 3,903,956 4,044,783 4,834,234
Scope 1   3,768,076   3,739,028   3,907,212   4,700,907
Scope 2 155,271 164,928 137,572 133,327
  Power generation 3,671,686 3,619,032 3,780,511 4,578,944
District heating and cooling 102,688 97,322 97,732 93,616
Other 148,973 187,602 166,540 161,674
Greenhouse gas emissions (Scope 3)

Calculation of Scope 3 greenhouse gas emissions started in FY2016, covering the Osaka Gas Group's entire value chain. The data since FY2017 have received third party verification.

FY2015 FY2016 FY2017 FY2018
Greenhouse gas emissions (Scope 3) (t-CO2e) - 27,926,333 31,763,841 31,471,045
Category 1 Purchased goods and services - 555,513 535,317 552,547
Category 2 Capital goods - 350,002 268,186 250,204
Category 3 Fuel procurement - 4,475,334 5,090,592 5,370,828
Category 4 Transportation (upstream) - 3,761 4,357 17,187
Category 5 Waste generated - 55,382 55,414 57,798
Category 6 Business travel - 2,710 2,476 2,364
Category 7 Commuting - 9,725 8,885 8,483
Category 8 Leased assets (upstream) - - - -
Category 9 Transportation (downstream)) - 22,235 21,950 101
Category 10 Processing of products - - - -
Category 11 Use of products - 22,017,035 25,296,910 24,725,918
Category 12 Product disposal - 17 74 76
Category 13 Leased assets (downstream) - 372,768 383,343 387,830
Category 14 Franchises - 61,851 96,338 97,709
Category 15 Investments - - - -
FY2014 FY2015 FY2016 FY2017
Non-energy CO2 (t-CO2) - - - 3,645
  Osaka Gas - - - 0
Affiliates - - - 3,645
Methane emission (t-CO2e) 2,341 2,299 1,883 2,016
Methane emission*3 (t-CH4) 94 92 75 81
  Osaka Gas 94 92 75 77
Affiliates - - - 3
N2O (t-CO2e) - - - 3,498
N2O (t-CH4) - - - 12
  Osaka Gas - - - 0
Affiliates - - - 12
Chlorofluorocarbons*4 (t-CO2e) - - - 4,337
  Osaka Gas - - - 161
Affiliates - - - 4,176
Nitrogen oxide emission (t-NOx) 711 747 585 852
  Osaka Gas 15 11 22 26
Affiliates 696 736 563 826
Sulfur oxide emission (t-SOx) 120 104 102 184
  Osaka Gas 0 0 0 0
Affiliates 120 104 102 184

Figures in the table do not appear to add up to the totals due to rounding.

*1 Calculation of CO2 emissions
The following emission coefficients are used to calculate CO2 emissions.
  Purchased
electricity
City gas Gas before
calorific
value
adjustment
process
Gasoline Diesel
oil
LPG LNG Heavy
fuel
oil
A
Kerosene Coal
Emission factor * 0.65 or 0.69 t-CO2 / 1,000 kWh 2.29
t-CO2 / 1000 Nm³
2.23
t-CO2 / 1000 Nm³
2.32
t-CO2/kl
2.58
t-CO2/kl
6.17
t-CO2 / 1000 m³
2.7
t-CO2/t
2.71
t-CO2/kl
2.49
t-CO2/kl
2.33
t-CO2/t
* CO2 emissions of purchased electricity subject to control are calculated using the average factor of thermal power plants so that the Daigas Group can precisely assess how the reduction of purchased electricity has contributed to a reduction in CO2 emissions.
Emission factor used for calculation of emission before FY2017: 0.69 t-CO2 / 1,000 kWh stipulated in the Interim Summary by Target Achievement Scenario Subcommittee of the Global Environment Committee, Central Environment Council (July 2001)
Emission factor used for calculation of emission in FY2017: 0.65 t-CO2 / 1,000 kWh stipulated in the Plan for Global Warming Countermeasures adopted at the Cabinet meeting in May 2016.
Emission factor for gas is the value published by Osaka Gas.
Emission factor for other fuels: Ministerial Order for Promotion of Measures to Cope with Global Warming
*2 GHG emission for comparison
CO2 emissions are calculated using the actual value of the emission factor of the electric power company in the previous fiscal year. Until FY2015, CO2 emissions associated with purchased electricity consumption are calculated by the following formula using the data of the most recent (previous year) published by Kansai Electric Power Co., Ltd.
Calculation formula: (Electricity consumption amount in each fiscal year) X (Emission factor for each fiscal year: For example, the emission factor for FY2015 is the actual value in FY2014). The emissions since FY2016 are calculated by multiplying the usage volume for each electric power company by the emission coefficient for that company, in accordance with the agreements signed with multiple electric power companies.
Therefore, the year-to-year difference in CO2 emissions does not necessarily reflect the effect of emission control measures.
The effective emission factor is used as the emission factor to ascertain actual emissions due to electricity use. (reference: The adjusted emission factor, which reflects the Kyoto Protocol's credit scheme, is used in the Greenhouse Gas Emissions Calculation and Reporting System.)
*3 Calculation of methane emission
Methane emission is calculated using GHG coefficient 25. (Reference: IPCC Guidelines for National Greenhouse Gas Inventories 2012)
*4 Chlorofluorocarbons
Emissions of gases subject to the Act on Rational Use and Proper Management of Fluorocarbons are calculated.

Power plant capacity of renewable energy sources

FY2015 FY2016 FY2017 FY2018
Power plant capacity (10,000 kW)* Domestic 11.7 11.7 16.1 19.6
Overseas 10.3 10.4 10.4 10.4
* Power plant capacity
The power generation at the facilities owned by the Daigas Group is included but that at facilities under plan and under construction is not included.

Water management policy

Water withdrawal and discharge

FY2015 FY2016 FY2017 FY2018
Total water withdrawal (1,000 m³) 607,553 536,395 601,066 633,336
Tap water, industrial water withdrawal (1,000 m³) 10,839 10,549 11,127 12,122
  Osaka Gas 1,825 1,464 1,525 1,451
Affiliates 9,014 9,085 9,602 10,671
Groundwater withdrawal (1,000 m³) 1,985 3,553 3,475 3,572
  Osaka Gas 0 0 0 0
Affiliates 1,985 3,533 3,475 3,572
Sea water withdrawal (1,000 m³) 594,729 522,294 586,464 617,642
  Osaka Gas 399,885 390,721 398,016 423,994
Affiliates 194,844 131,573 188,448 193,648
Total water discharge (1,000 m³) 601,096 529,540 591,403 630,922
Discharged to municipal sewage system (1,000 m³) 1,639 1,775 1,788 1,685
  Osaka Gas 407 415 412 372
Affiliates 1,232 1,360 1,377 1,313
Discharged to rivers (1,000 m³) 1,781 3,029 1,257 2,978
  Osaka Gas 0 0 0 0
Affiliates 1,781 3,029 1,257 2,978
Discharged to sea (1,000 m³) 597,676 524,736 588,358 626,258
  Osaka Gas 401,112 391,629 398,994 424,928
Affiliates 196,564 133,107 189,364 201,330
COD (LNG terminal)
FY2015 FY2016 FY2017 FY2018
COD (t) 3 2 3 2

Resources and Waste

Policy on relevant issues

Policy on raw materials / Policy on waste disposal / Policy on chemical substances
Biodiversity Policy

Chemical substances

Chemical substances that are subject to reporting under the PRTR law (Osaka Gas's LNG terminals)
FY2015 FY2016 FY2017 FY2018
VOC Xylene (tons/year) Handled 2 5 1 1
Released 2 5 1 0
Transferred 0 0 0 0
Toluene (tons/year) Handled 0 1 0 0
Released 0 1 0 0
Transferred 0 0 0 0
Chemical substances produced by Osaka Gas affiliates that are subject to reporting under the PRTR Law
FY2015 FY2016 FY2017 FY2018
VOC Xylene (tons/year) Handled 0 13 0 0
Released 0 1 0 0
Transferred 0 0 0 0
Toluene (tons/year) Handled 26 29 28 28
Released 0 0 0 0
Transferred 0 0 0 0
Zinc compounds (water-soluble) (t/year) Handled 623 439 413 368
Released 2 2 1 2
Transferred 0 0 0 0

Waste

FY2015 FY2016 FY2017 FY2018
General waste (tons) Generated 1,292 1,217 1,200 1,085
Osaka Gas 789 707 640 483
Affiliates 503 509 560 602
Final disposal 110 104 112 47
Osaka Gas 18 17 17 11
Affiliates 92 87 95 36
Recycling rate (%) 9% 9% 9% 4%
Osaka Gas 2% 2% 3% 2%
Affiliates 18% 17% 17% 6%
Industrial waste (tons) Generated 82,578 81,097 92,711 104,345
Osaka Gas 2,873 3,114 2,865 2,596
Affiliates 79,705 77,983 89,846 101,749
Final disposal 3,947 2,864 4,310 3,321
Osaka Gas 36 27 18 18
Affiliates 3,911 2,837 4,292 3,303
Recycling rate (%) 5% 4% 5% 3%
Osaka Gas 1% 1% 1% 1%
Affiliates 5% 4% 5% 3%
Used gas appliances, etc. (Osaka Gas)
  (1) Collected (tons) 2,330 2,232 1,719 1,665
(2) Recycled (tons) 1,970 1,927 1,501 1,448
(3) Final disposal ((1)-(2)) 359 305 219 217
(4) Recycling rate ((2)/(1)) 85% 86% 87% 87%
Polyethylene pipes (Osaka Gas)
  Collected (tons) 198 200 201 194
Recycled (tons) 198 200 201 194
Recycling rate 100% 100% 100% 100%
Excavated soil (Osaka Gas)
  (1) Distance of installation works (km) 553 549 517 500
(2) Estimated amount of soil generated using conventional method*1 (10,000 tons) 131 130 120 118.3
(3) Reduced (10,000 tons) 51 51 49 47.7
(4) Generated ((2)-(3)) (10,000 tons) 80 80 71 70.5
(5) Recycled (10,000 tons) 70 71 63 64.9
(6) Recycling rate ((5)/(4)) 90% 89% 89% 92%
(7) Utilized*2 (10,000 tons) 9 8 7 5.3
(8) Final disposal ((4)-(5)-(7)) (10,000 tons) 1.2 1.0 1.0 0.3
(9) Final disposal rate ((8)/(4)) 1.5% 1.3% 1.4% 0.4%
Copy paper (1,000 sheets)
  Osaka Gas 42,217 40,743 39,379 41,668
Affiliates 56,012 49,924 56,894 56,106
Compliance with the Home Appliance Recycling Law Air Conditioners
Number of units recycled (units) 4,624 4,093 3,870 4,205
Gross weight recovered (t) 193 170 159 173
Weight recycled (t) 173 154 144 156
Recycling rate 89% 90% 90% 90%
Clothes Dryers
Number of units recycled (units) 373 345 321 347
Gross weight recovered (t) 14 13 13 14
Weight recycled (t) 12 12 11 12
Recycling rate 85% 88% 87% 87%

Figures in the table do not appear to add up to the totals due to rounding.

*1 Estimated amount of soil generated
The amount that is believed to be generated when doing pipe installation without using current methods for reducing the amount of excavated soil. The difference between this figure and the actual amount generated is the reduced amount.
*2 Amount utilized
The amount used outside of Daigas Group, such as for improving farmland soil. Final disposal is the amount generated minus the amount recycled and the amount utilized.

President's Commitment
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