Go to the contents of this page.


Search of Article by Purpose CSR Content Menu

CSR Charter ⅡHarmonizing with the Environment and Contributing to Realizing a Sustainable Society

Environmental Impact throughout the Daigas Group Value Chain

Environmental Impact throughout the Daigas Group Value Chain in FY2018

The Daigas Group calculated the amount of greenhouse gas (GHG) emitted by companies that constitute the Daigas Group's value chain network, based on the GHG Protocol, an international emission standard. The methodology of the calculation and its results have been certified by an independent organization to warrant their reliability and accuracy.

Combined GHG emissions by the Daigas Group and value chain companies, measured by CO2, totaled about 36.63 million tons in FY2018. The sum breaks down into about 5.16 million tons or about 14% for GHG emitted through business activities by the Daigas Group (Scope 1 and Scope 2), and about 31.47 million tons or about 86% emitted by organizations involved in our value chain (Scope 3).

GHG emissions from city gas combustion on the customer side amounted to 19.65 million tons in the reporting year in terms of CO2, accounting for about 54% of the total. This makes it all the more important for Osaka Gas to further diffuse energy-efficient Ene-Farm systems and cogeneration systems -for which our company has mounted a promotional campaign- while promoting energy conservation using natural gas, an energy source that emits less CO2.

GHG emissions through electricity generation by the Daigas Group, as measured in terms of CO2, came to 4.71 million tons, representing about 13% of the total emissions from its own business activities. With the power generation business expanding, the ratio of CO2 emissions from that business has been increasing every year. As a way of reducing GHG emissions from power generation, the Group will continue to actively introduce highly advanced energy-efficient power generation facilities and using renewable energy sources.

GHG emissions from material and fuel procurement totaled 6.19 million tons, as measuredin terms of CO2 in the year, accounting for about 17% of the total emissions. The procurement of energy sources, especially LNG, accounted for nearly 90% of the 5.9 million tons. Under these circumstances, we will continue our efforts to improve fuel efficiency regarding the operation of LNG tankers in collaboration with material suppliers. Activities that have potential environmental impacts other than GHG emissions include the disposal of waste (general waste and industrial waste), and the disposal of excavated soil and polyethylene pipes associated with gas pipe works. However, the recycling rates are high for such waste, a situation we will try to maintain in the future.

About 97% of water used for our industrial activities is taken from the sea. Such water is mostly used to vaporize LNG at LNG terminals. Sea water is also used as coolant inside the steam turbine condenser at some power plants. Once used, the water is discharged into the sea under strict control.

GHG Emissions Throughout the Value Chain in FY2018

GHG Emissions Throughout the Value Chain in FY2018
Environmental Impact throughout the Daigas Group Value Chain in FY2018

LCA Comparison of GHG Emission among Fossil Fuels

The table below is a comparison of GHG emissions (CO2 equivalent) at each stage from fossil fuel production to combustion by life cycle assessment (LCA*1) method. Natural gas is highly expected as clean energy with the least environmental impact among fossil fuels.

Comparison of Greenhouse Gas Emissions (g-CO2/MJ, HHV)

Coal*2 Oil*2 LPG*2 LNG*3 City gas 13A*3
Production 4.58 4.06 4.94 7.93 7.48
Transport 1.71 0.79 1.80 1.97 1.48
Manufacturing - - - - 0.19
Infrastructure 0.11 0.08 0.11 0.05 0.34
Combustion 88.53 68.33 59.85 49.50 50.96
Total 94.93 73.26 66.70 59.45 60.46
Ratio 160 123 112 100  

*1 LCA (Life Cycle Assessment) : A comprehensive method of survey, analysis, and evaluation of the amount of environmental impacts of products and services. The assessment covers all the related processes from resource extraction to waste disposal including production, transportation, consumption, and recycling for the products and services.

*2 Source: Future Forecast for Life Cycle Greenhouse Gas Emissions of LNG and City Gas 13A (Energy and Resources, Vol. 28, No. 2, March, 2007)

*3 Source: Calculation of life cycle greenhouse gas emissions of LNG and city gas 13A (Research papers and a collection of academic speeches released at the 35th meeting of the Japan Society of Energy and Resources, held between June 6 and June 7, 2016)

CSR of Daigas Group

President's Commitment
Management and CSR of the Daigas Group
Policies on CSR
Special Feature
Contribution to the Sustainable
Development Goals (SDGs)
Corporate Governance
Stakeholder Engagement
Value Chain of the Daigas Group
Actions on Materiality
CSR Charter Ⅰ
Creating Value for Customers
CSR Charter Ⅱ
Harmonizing with the Environment and Contributing to Realizing a Sustainable Society
CSR Charter Ⅲ
Being a Good Corporate Citizen Contributing to Society
CSR Charter Ⅳ
Complying with Laws and Regulations and Respect for Human Rights
CSR Charter Ⅴ
Management Policy for Human Growth
ESG Data
Reporting

President's Commitment
Management and CSR of the Daigas Group
Corporate Principles and CSR Charter
Daigas Group Code of Conduct
Global Compact and ISO 26000
Long-Term Management Vision 2030
Medium-Term Management Plan 2020
CSR Integrated into
Management Strategy
Policies on CSR
Special Feature The Daigas Group addresses social issues with its
human resources and technical expertise
Reducing greenhouse gas emissions
through efficient use of natural gas and expansion of renewable energy
Constructing resilient infrastructure for disaster-resistant urban development
Promoting the evolution of ICT/IoT
services to solve customer problems
Corporate Governance
Corporate Governance
Risk Management
CSR Management
Stakeholder Engagement
Dialogue and Cooperation with Stakeholders
Response to Stakeholders' Voices
Value Chain of the Daigas Group
Enhancement of CSR in Our Value Chain
Social Impact of Business Activities in Our Energy Value Chain and Efforts to Reduce Such Impact
CSR Efforts Throughout Supply Chain
Electricity and Gas Industry Reform
Actions on Materiality
Materiality
Customer Health and Safety
Energy / Emissions
Local Communities
Customer Privacy
Supplier Assessment
Training and Education
Diversity and Equal Opportunity
Economic Performance
CSR Charter Ⅰ
Creating Value for Customers
Index
CSR Indicator
Safety and Security 1: Procurement Stage
Safety and Security 2: Processing Stage
Safety and Security 3: Distribution Stage
Safety and Security 4: Consumption Stage
Incorporating Customer Opinions
Proposing New Value
CSR Charter Ⅱ
Harmonizing with the Environment and Contributing to Realizing a Sustainable Society
Index
CSR Indicator
Environmental Management
Environmental Management:
Indicators, Targets and Results
Actions for Climate Change:
Recognition of and Action on Risks and Opportunities
Actions for Climate Change: Method to Evaluate Effects of CO2 Emissions Reduction
Actions for Climate Change: Working to Reduce CO2 Emissions in Business Activities
Actions for Climate Change: Working to Reduce CO2 Emissions at Customer Sites
Efforts in Resource Recycling
Conserving Biodiversity
Developing Environmental Technologies
Addressing Environmental Risk
Green Purchasing and Green Distribution
Environmental Communication
CSR Charter Ⅲ
Being a Good Corporate Citizen Contributing to Society
Index
CSR Indicator
Social Contribution Activities
Corporate Volunteering Activities under the “Small Light Campaign”
Activities for Promoting Communication with Society
Activities at Osaka Gas' Foundations
CSR Charter Ⅳ
Complying with Laws and Regulations and Respect for Human Rights
Index
CSR Indicator
Compliance Promotion Efforts
Action on Human Rights
Efforts for Protection of Personal Information
Information Security
Consultations and Reports from Partner Companies
CSR Charter Ⅴ
Management Policy for Human Growth
Index
CSR Indicator
Employment
Acceptance of Diversity
Balancing Work and Family
Human Resource Development and Rewards
Communication Between Employees and Company
Improving Occupational Health and Safety
ESG Data
Environmental Performance Data
Social Data
Governance Data
Reporting
CSR Report Policy
Commendation from the Outside
Third-Party Review / Third-Party Verification
Download
Course Taken Since the Company's Foundation
Reporting Guidelines
CSR Report 2019 Terminology
Search by Purpose
We Value Your Feedback
Osaka Gas in brief
Topics
CSR Site Map