Carbon neutrality/climate change action

Basic approach

Idemitsu Kosan aims to realize a carbon-neutral (CN) and recycling-oriented society by utilizing its group's strength of "provide for society capabilities" and fulfilling its "responsibility to support people's lives" and "Responsibility to protect the global environment now and in the future." With regard to efforts to address climate change, while continuing to disclose information in accordance with the TCFD recommendations, which we signed in support of in 2020, we will expand disclosure with an eye toward disclosure within the IFRS S2 framework, and accelerate our efforts with the understanding and cooperation of our stakeholders.

Signing of support for the recommendations of the Task Force on Climate-related Financial Disclosures (TCFD)

「気候関連財務情報開示タスクフォース(TCFD)」ロゴ

On February 14, 2020, we endorsed and signed the recommendations of the Task Force on Climate-related Financial Disclosures (TCFD).

Participating in the initiatives/organizations

Climate change-related disclosures on this website

The pages on which each item of the TCFD framework is posted on this website are listed in the table below.

Region TCFD recommendations Our disclosure
Governance ① Explain the board of directors' monitoring system for climate-related risks and opportunities. Governance
② Explain the role of management in assessing and managing climate-related risks and opportunities.
Strategy ① Describe the short-, medium-, and long-term climate-related risks and opportunities that the organization has identified. Message from the Executive Officer
Strategy
② Explain the impact of climate-related risks and opportunities on the organization's business strategy and financial planning.
③ Explain the resilience of the organization's strategy based on considerations based on various climate-related scenarios, including the 2°C or lower scenario.
Risk management ① Describe the process by which the organization identifies and assesses climate-related risks. Risk management
② Explain the process by which the organization manages climate-related risks.
③ Describe how the organization's processes for identifying, assessing, and managing climate-related risks are integrated into the organization's overall risk management.
Metrics and targets ① The organization discloses the metrics it uses to assess climate-related risks and opportunities in line with its own strategy and risk management processes. Metrics and targets
② Explain Scope 1, Scope 2, and if applicable to the organization, Scope 3 GHG emissions and related risks. CO₂ emissions (Scope 1, 2, 3) actual trends
③ Disclose the goals the organization uses to manage climate-related risks and opportunities, and its performance against those goals. Metrics and targets

(Supplementary item)

Region TCFD recommendations Our disclosure
Greenhouse gas emissions Absolute emissions and emissions intensity for Scope 1, 2, and 3 CO₂ emissions (Scope 1, 2, 3) actual trends
Transition The amount and scope of assets or business activities vulnerable to transition risks; Risks and opportunities
Physical risk The amount and extent of assets or business activities vulnerable to physical risks; Risks and opportunities
Climate-related opportunities Proportion of revenue, assets and business activities linked to climate-related opportunities Risks and opportunities
Capital deployment Capital expenditures, financing and total amounts deployed towards climate-related risks and opportunities Investment decision-making system
ICP Price per ton of CO₂ emissions used within the organization (internal carbon price) Strategy
Reward Percentage of executive compensation linked to climate considerations Executive compensation

Governance

An overview of our corporate governance system is provided in the link below, and supplementary information regarding our response to climate change is provided below.

Corporate Governance > Governance > Overview of Corporate Governance System

Board of directors

For our company, whose main business is the sale of fossil fuels, responding to climate change is one of our most important management issues, and it is an initiative that will involve a large-scale transformation of our business portfolio over the medium to long term.
The Board of Directors has the role of determining management policies based on a multifaceted approach to this issue, and supervising that actions based on those policies are carried out quickly and steadily.
The 11 directors who make up the Board of Directors are people with experience, track record, and knowledge in a variety of fields, including the environment, Resources circulation, domestic and international energy transition trends, related advanced technology, and sustainability.

Corporate Governance > Initiatives > Skills and Career Matrix

Major climate change-related proposals are submitted to the Management Committee, which is the highest deliberative body for business execution, and particularly important matters are reported to the Board of Directors. This has created a system in which the Board of Directors supervises whether execution is steadily being carried out based on company-wide policies.

Business execution

For our company, whose main business is the sale of fossil fuels, responding to climate change is one of our most important management issues, and is an initiative that will require a large-scale transformation of our business portfolio over the medium to long term. The Board of Directors is responsible for determining management policies that address this issue from multiple angles and in a multifaceted manner, as well as for overseeing that actions based on those policies are implemented quickly and steadily. Major climate change-related proposals are submitted to the Executive Committee, and particularly important matters are reported to the Board of Directors. This allows the Board of Directors to oversee whether company-wide policies are being steadily implemented.

*1 Establishment of management policies based on climate change issues Supervising the implementation of actions based on policies
*2 Deliberation of major climate-related topics
*3 Scenario analysis, company-wide investment and loan policy formulation and management
*4 Company-wide CN strategy planning, GHG reduction target setting, progress monitoring of each department strategy
*5 GHG emissions capture and monitoring
*6 CN strategy planning and execution by business division

Linking climate change response and executive compensation

The remuneration system for our directors (excluding part-time directors and outside directors) and senior executive officers and above consists of ① fixed compensation, ② performance-linked bonuses, ③ performance-linked stock compensation, and ③ performance-linked stock compensation. It also includes CO₂  reduction indicators that are essential for realizing a carbon-neutral, recycling-oriented society.

Corporate Governance > Initiatives > Officer Compensation

Strategy

Scenario analysis

Long-term energy business environment scenario towards 2050

To specifically consider how to respond to climate change, we have formulated a long-term business environment scenario for the period up to 2050, identified risks and opportunities based on the output of the scenario, and are moving forward with the formulation of specific strategies.
Since the Company's first public announcement of its business environment scenario in 2019, the scenario has been reviewed from time to time in response to changes in the social environment, and three scenarios have been assumed when considering Medium-term Management Plan (FY2023-FY2025). Among these, we have formulated a plan with a strong awareness of the "Hekiten+" scenario, which is similar to the IEA's net zero scenario, which would make the most progress in decarbonization.
In the "Hekiten+" scenario, governments around the world take measures at a rapid pace to achieve the "1.5℃ target," and various decarbonization technologies are provide for society at an extremely rapid pace. We envision a world where this is achieved. In this scenario, in addition to renewable energy, various decarbonization technologies will be introduced, including nuclear power generation, hydrogen/ammonia combustion power generation, thermal power generation with CCS (Carbon Capture and Storage), synthetic fuel, and negative emissions. The goals of the Paris Agreement will be achieved through “total war.” Furthermore, oil demand in the Asia-Pacific region is expected to peak in 2025, and domestic oil demand is expected to decline by 30% in 2030, 60% in 2040, and 80% in 2050 compared to 2019. is.

Long-term energy business environment scenario towards 2050
Long-term energy business environment scenario towards 2050
Long-term energy business environment scenario towards 2050

*The three business environment scenarios are unique to our company, but the following are scenarios from other organizations that are similar to each scenario.
Cloud: IEA Stated Policies Scenario
Rainbow: Between the IEA Stated Policies Scenario and the Sustainable Development Scenario
Hekiten+: IEA Net Zero Emissions by 2050 Scenario

●Long-term energy demand outlook

「碧天+」を前提に試算
「碧天+」を前提に試算
「碧天+」を前提に試算
Asia Pacific

Asia Pacific

Japan

Japan

Asia Pacific

Asia Pacific

Japan

Japan

Asia Pacific

Asia Pacific

Japan

Japan

Risks and opportunities

Based on long-term business environment scenarios for 2050, we are identifying risks and opportunities related to climate change. We have summarized the expected timeline, financial impact level, and our response for each area, and are proceeding with specific initiatives in accordance with the details listed in the table below.
In response to risks and opportunities, we will work to strengthen the profitability of existing businesses and improve capital efficiency, create new businesses through business structure reforms investments, and transform our business portfolio. As a result, as of 2030, we are targeting an operating profit + equity profit/loss base of 270 billion yen.

Classification Content Time axis Financial impact *1 Our response
~2025 ~2030 ~2050 level
1
level
2
level
3
Move
line
Li
vinegar
nine
Transition risks
Decrease in domestic fossil fuel demand    
  • Expansion of supply of fossil alternative fuels and review of domestic supply system (establishment of CNXcenter, Smart Yorozuya)
Decrease in energy and Resources prices due to technological innovation      
  • Strengthening the competitiveness of the entire supply chain
Full-scale introduction of carbon pricing by the government      
  • Pay close attention to policy trends, introduce and operate an internal carbon price
Regulations on fossil Resources extraction business and cautious investment and lending stance of financial institutions      
  • Coal mine production scale reduction
Declining brand image for companies with high carbon emissions      
  • Continue and strengthen dialogue with stakeholders
thing
Reason
Li
vinegar
nine
Physical risks
Damage to coastal bases and impact on operations due to natural disasters and sea level rise      
  • Planned reinforcement of equipment maintenance, relocation of control rooms, etc.
Impact on land and sea transportation due to abnormal precipitation and frequent typhoons, etc.      
  • Strengthening the supply chain to maintain supply
machine
Association
Opportunities
Increasing demand for fossil alternative fuels (solid fuels)      
  • Expansion of production and supply Idemitsu Green Energy Pellets
Increasing demand for fossil fuels (gaseous fuels)        
  • Building an ammonia/hydrogen supply chain
Increasing demand for fossil alternative fuels (liquid fuels)      
  • Establishment of SAF production and supply system, construction of bio/ synthetic fuel production and supply system
Increasing importance of low-carbon fuel/raw material supply bases      
  • Converting domestic Refineries/Complexes establishment of CNXcenter and building a biochemical manufacturing and supply system
Increasing demand for products and materials that contribute to the realization of carbon neutrality society      
  • Development of next-generation materials and materials *2
Growing demand for next-generation storage batteries      
  • Commercialization of lithium solid electrolytes
Full-scale expansion of recycling to realize a recycling-oriented society      
  • Establishment of recycling business (used plastics/solar panels/lithium batteries)
Stable supply of energy to local communities    
  • Smart Yorozuya, utilization of SS network
Expansion of electric vehicles    
  • Participation in ultra-compact EV, development of lubricant for EV
    EV charging/maintenance
Growing demand for renewable energy    
  • Development of diverse renewable energy power sources in Japan and overseas
Evolution of distributed energy systems and growing demand    
  • Development of VPP (virtual power plant) control service and business entry

*1 Financial impact over a long-term timeline Level 1: ~5 billion yen, Level 2: 5 billion yen ~ 50 billion yen, Level 3: ~50 billion yen
*2 Super engineering plastics, oxide semiconductors, high-performance asphalt, environmentally friendly agricultural and livestock materials, etc.

Transition strategy

"Our response" to the above risks and opportunities includes potential themes for provide for society up to 2030. We are working on these as part of our transition strategy towards 2050.

Investment decision-making system

We plan to invest a cumulative total of 800 billion yen by 2030 in new business expansion that will benefit CN.
Recognizing the need to accelerate the formulation and execution of company-wide issues to realize carbon neutrality society, we established the CNX Strategy Office in July 2021, and further established the CNX Strategy Headquarters in December 2023 to share information within the group and make rapid decisions. Under the structure shown in the diagram below, we have allocated personnel to each business division at a level of 250 people, and for each project that contributes to CN, we screened 16 projects set as new business themes from the perspective of market feasibility, the degree of utilization of existing assets, the presence or absence of major business partners and our own technological advantages, etc. As a result, we selected four businesses - blue ammonia, e-methanol, SAF, and lithium solid electrolytes- as investments to be made toward CN in 2050 (CN investments) and have already begun concrete efforts.
For investments in new projects, we check changes in Scope 1, 2, and 3 emissions as well as changes in avoided emissions by others before and after the project, and then conduct a sensitivity analysis using an internal carbon price (100$/t-CO2). We use this information as a reference when evaluating investment projects.

  • CNX: Carbon Neutral Transformation

トランジション戦略体制
ransition Strategy Structure

External evaluation of our transition strategy

Our transition strategy has been adopted as a model case for climate transition finance led by the Ministry of Economy, Trade and Industry.

Climate Transition Finance Ministry of Economy, Trade and Industry website

Risk management

Risk management

Metrics and targets

Concept of setting indicators

In order to realize carbon neutrality society, we will reduce our own direct and indirect emissions (Scope 1, 2) through business operations, and contribute to the reduction of others' emissions through the provision of new products and services (Scope 3 reduction, We believe that efforts from both sides (creating reduction contribution amount) are necessary.
In moving forward with this initiative, we need to consider how we can simultaneously contribute to the environment by reducing emissions, contribute to society by supplying energy, and contribute to the economy by maintaining and expanding corporate profits. Recognizing that it is important to see how well we can achieve our goals, we have set the three indicators listed below to monitor the progress of related activities.

  • Indicators 2 and 3 have been revised, taking into account the trends in international discussions on avoided emissions.

指標設定の考え方_1
Concept of setting indicators_1
指標設定の考え方_2
Concept of setting indicators_2

Indicator targets and progress

The target values (target levels) and actual values for fiscal 2023 for each indicator are as follows:

Indicator 1

(Scope1+2 emissions)

2030: ▲46% (compared to 2013)
2050: Carbon neutral (CN)
2023 actual result: ▲14.6%

CO2排出量(Scope1+2)

*Scope of reporting: Idemitsu, consolidated refining companies (TOA Oil Co., Ltd., Showa Yokkaichi Sekiyu Co., Ltd., Seibu Oil Co.,Ltd.) and major consolidated group companies

In fiscal year 2023, Scope 1+2 emissions decreased by 4.9% compared to the previous year and by 14.6% compared to the base year, due to the promotion of energy-Shut Down Maintenance activities at Refinery and Complex and the impact of large-scale regular maintenance work.
Seibu Oil Co., Ltd. stopped its refining functions in March 2024, but the reduction in emissions due to the shutdown is expected to be reflected in its performance figures for fiscal 2024.

CO2 emissions (Scope 1 + 2)

*Scope of data: Idemitsu Kosan, consolidated refining companies (Toa Sekiyu, Showa Yokkaichi Sekiyu, Seibu Sekiyu) and major consolidated companies.

In fiscal 2023, Scope 1 + 2 emissions decreased by 4.9% compared to the previous year and by 14.6% compared to the base year due to the promotion of energy-saving activities at refineries and business sites and the effects of large-scale regular maintenance work.
Seibu Oil Co., Ltd. stopped its refining functions in March 2024, but the reduction in emissions due to the shutdown is expected to be reflected in the actual figures for fiscal 2024.

Indicator 2

(Carbon Intensity)

2030: ▲10% (compared to 2020)
2040: ▲50% (compared to 2020)
2023 actual result: ▲1.1%

In order to realize carbon neutrality society, we will reduce emissions throughout the supply chain and proceed with related initiatives, using an indicator called "Carbon Intensity" to set targets and achieve both a contribution to the environment (CO₂ reduction) and a contribution to society (supply of the low-carbon energy that society needs).
In FY2023, compared to the base year (FY2020), the sales ratio of coal, which has a high Carbon Intensity (CI value), among the fossil fuels sold, decreased, while the sales ratio of natural gas and petroleum products, which have low CI values, increased, resulting in a decrease of ▲1.1%.
The "Energy one step ahead" fields that we have set as our future business areas are all initiatives that will significantly contribute to Scope 3 reductions, and through provide for society of these fields, we hope to contribute to the realization of carbon neutrality society.

*The area graph in the figure shows the low carbon degree of society based on the IEA scenario (our assumption)

The "Energy one step ahead" that we are promoting as a future business field is an initiative that will greatly contribute to Scope 3 reduction, and we hope to contribute to the realization of carbon neutrality society through provide for society of this field. .

Provide for society theme Estimated business scale
Unit 2030 2040
Hydrogen/ammonia Million tons 100 400
SAF/biofuel/ synthetic fuel Million kL 50 250
Blending non-fossil fuels into gasoline * % 10 20
Idemitsu Green Energy Pellets Million tons 300 300~
Afforestation, CCS, etc. Million tons 100 700

* Target in 2030 assumes high-octane gasoline

Indicator 3

(Fossil fuel business revenue ratio)

2030: 50% or less
2023 performance: 91.5%

By scaling back our fossil fuel business in line with demand trends while expanding our new carbon-neutral fuel business, we will reduce CO₂ emissions throughout our entire supply chain while maintaining and expanding our company-wide profit levels.

●Image of reducing Scope 1, 2, and 3 emissions through business portfolio transformation

ESG Data > Environment > Changes in CO₂  emissions

Initiatives

Climate change adaptation response

In response to increasingly severe natural disasters, we can anticipate various types of damage such as earthquakes, tsunamis, and storm surges, extract risks, and minimize damage to Refineries / Complexes in the event of a disaster and quickly restore their original condition. Extremely important. We will continue to fulfill our mission of supplying energy by strengthening our hardware by investing in equipment to strengthen our security capabilities, and by enhancing our intangible aspects from the perspective of disaster mitigation in the event of unexpected disasters.
In recent years, more and more typhoons are moving across the country while maintaining their strength, and climate change is said to be a contributing factor. Storm surges brought about by typhoons increase the risk of flooding for Refineries / Complexes located in coastal areas. Therefore, we are simulating the route in which the largest typhoon expected in the future will land directly on Refineries / Complexes, and conducting risk analysis on the impact of flooding from storm surges. Based on the results of this analysis, we are considering hardware reinforcement measures such as installing flood walls in the seawater pump room, as well as soft disaster mitigation measures by enhancing the disaster prevention response manual.

●Estimated typhoon path as a prerequisite for studying storm surge damage estimation Refinery

製油所高潮被害想定検討の前提となる台風経路想定
製油所高潮被害想定検討の前提となる台風経路想定
製油所高潮被害想定検討の前提となる台風経路想定

●Estimated image of storm surge damage

高潮被害の想定イメージ

Reducing CO₂ emissions throughout the value chain

Low-carbon Petroleum

In order to realize the energy transition, we will first steadily make use of our assets (customers, human resources, stores, systems, infrastructure, equipment, etc.) and, in conjunction with new investments for next-generation businesses, provide diverse services to our customers. We will create a system that can provide a stable supply of energy.
In the biomass fuel field, we have built a SAF manufacturing facility (production capacity: 100,000 kL) at Chiba Complex using cutting-edge technology, and we plan to start supplying it in 2026, contributing as a low-carbon solution for the air transportation industry. We are aiming for This initiative has been selected as a Green Innovation Fund project *1 by NEDO (New Energy and Industrial Technology Development Organization).
Our interim goal is to build a system to produce 500,000 kL of SAF *2 annually in Japan by 2030. In building this system, we will link raw material procurement and expansion into biochemistry, and will also begin supplying biodiesel, an internal combustion engine oil, to customers.

*1 NEDO Green Innovation Fund project special website

*2 SAF: Sustainable Aviation Fuel
Jet fuel is produced from sustainable sources with low CO₂ emissions during the process from raw material production and collection to combustion.

※3 ATJ:Alcohol To Jet
It is a technology and process for producing SAF from ethanol, and has been certified as the international standard "ASTM D7566 Annex 5" for SAF.
※4 HEFA:Hydroprocessed Esters and Fatty Acids
SAF production method for hydrotreating used cooking oil, vegetable oil, etc.

Establishment of CNXcenter concept

Our establishment of CNXcenter concept is to leverage the characteristics and strengths of Refineries/Complexes have operated for many years as fossil-based energy production bases, while reborn as new carbon-neutral fuel and product supply bases. In doing so, we will build a new supply chain according to the characteristics and demands of the industrial complex where each base is located, contributing to the "carbon neutrality" of the industrial complex as a whole.

Establishment of CNXcenter concept

Building an ammonia supply chain at Tokuyama Complex and Shunan area

The four companies, Toshiba, Tosoh Corporation, Tokuyama Corporation, and Zeon Corporation, have begun a joint study aimed at establishing a carbon-free ammonia supply system of over 1 million tons per year at the Shunan Petrochemical Complex by 2030. The pier and storage facilities at Tokuyama Complex of Toshiba will be developed as a common supply base for ammonia at the Shunan Petrochemical Complex, and ammonia supply infrastructure for each company (demand side) at the Shunan Petrochemical Complex will be considered. In addition, the four companies will use this project as a base to promote the construction of Japan's first ammonia supply chain in the Shunan area through various initiatives, such as ammonia combustion demonstrations at actual equipment.

Building an ammonia supply chain at Tokuyama Complex and Shunan area

SAF manufacturing using ATJ process technology at Chiba Complex

SAF manufacturing using ATJ process technology at Chiba Complex

We are working to develop the world's first 100,000 kL class ATJ demonstration facility, and will construct a SAF production equipment using ATJ technology at Chiba Complex in 2025, with supply starting in 2026. Regarding bioethanol, the raw material, we will diversify our procurement from within and outside of Japan, building Japan's first large-scale supply chain, and aim to provide for society as soon as possible. By 2030, we will build an annual production system of 500,000 kL.

Promoting energy conservation and zero emissions of power consumption

Implementation of efficiency improvement work on heavy oil direct desulfurization equipment

In May 2020, we carried out renovation work to improve the efficiency of the heavy oil direct desulfurization equipment (RH equipment) at Chiba Complex. This work is intended to comply with the low sulfur content regulations for marine fuel set by the IMO (International Maritime Organization).

Construction of high-efficiency naphtha cracking furnace (Tokuyama Complex)

Construction of high-efficiency naphtha cracking furnace (Tokuyama Complex)

A high-efficiency naphtha cracking furnace was newly installed in Tokuyama Complex and commercial operation began in February 2021. The high-efficiency naphtha cracking furnace increases the yield of ethylene and improves thermal efficiency by pyrolyzing naphtha in a short period of time. As a result, it is possible to achieve an energy saving effect of about 30% compared to ethylene production using a conventional cracking furnace, and contributes to a reduction of about 16,000 tons of CO₂ per year. Naphtha is a petroleum product that is pyrolysis via a cracking furnace and becomes the basic raw material for petrochemicals such as ethylene and propylene.
Tokuyama Complex produces about 620,000 tons of ethylene per year using ethylene production equipment, mainly supplying it to the Shunan Complex (Shunan City, Yamaguchi Prefecture). This time, two old naphtha cracking furnaces in the ethylene production system were shut down and one high-efficiency naphtha cracking furnace was newly installed.

Expanding the use of electricity derived from renewable energy

Starting in fiscal 2020, we have decided to use CO₂-free electricity (3,732kW of contract power) provided by Idemitsu Green Power oil terminal terminals and other locations in Japan.

Supplying renewable energy to offshore oil fields

海上油田への再エネ電力供給の様子

INPEX CORPORATION, an equity method affiliate of INPEX, has submitted a development plan for the introduction of floating offshore wind power generation to the Norwegian government through its local subsidiary INPEX Idemitsu Norge in the Snorre oil field, in which INPEX holds an interest, and has received approval from the government. In May 2023, INPEX began transmitting electricity from floating offshore wind power generation to the Snorre oil field. The development plan involves constructing an offshore wind farm (named Hywind Tampen floating wind farm) consisting of 11 floating offshore wind power generation facilities with a rated capacity of 8,000 kW (total of 88,000 kW) approximately 200 km off the coast of Bergen in western Norway, and directly connecting it to oil and gas production facilities, which is a world first. INPEX will continue to actively adopt advanced technologies and promote the reduction of environmental impact in its Resources business.

Supply of environmentally friendly products and services

Sales of coal boiler control optimization system (ULTY-V plus™)

We have jointly developed the boiler control optimization system "ULTY-V plus™" with the Nippon Yusen Group. The introduction of ULTY-V plus™ can reduce coal consumption by approximately 1%, which will result in improved economic efficiency and reduced CO2 emissions for our customers. In March 2019, we established Yusen Idemitsu Green Solutions Co., Ltd. with a 50/50 investment from the Nippon Yusen Group, and are focusing on proposal sales with this company as the core. In fiscal 2021, we received an order for four units from Hokuriku Electric Power Co., Inc., and the introduction of these four units is expected to reduce CO2 emissions by approximately 100,000 tons per year. We will continue to promote sales both domestically and internationally. We have also developed a system (product name: "BAIOMIX™" (Biomix), hereinafter referred to as "this system") that calculates the optimal co-firing ratio of biomass fuel in a coal boiler, and began selling it in August 2021. By installing this system in the ULTY-V plus system, it is possible to optimally and automatically control biomass co-firing in a coal boiler.

ボイラ制御最適化システム「ULTY-V plus™」

In order to expand biomass co-firing at coal-fired power plants, we have developed torrefied wood pellets, "Idemitsu Green Energy Pellets" which have excellent crushability and calorific value, and can be handled in much the same way as coal. We are working to reduce CO₂ emissions using existing coal-fired power generation equipment.
This newly developed system calculates the impact and economic burden on equipment and power generation efficiency due to biomass co-firing, including Idemitsu Green Energy Pellets, and uses AI (artificial intelligence) to determine the optimal co-firing rate based on past co-firing rate data. Calculate the mixed combustion rate. In addition to the method in which coal and biomass fuel are mixed in existing equipment and then combusted, it can be used in various combustion methods, such as a method in which biomass fuel is input through a dedicated line and co-combusted with coal in the furnace.

Expansion of renewable energy power generation

Tokuyama biomass power generation project initiatives

Our group is engaged in the biomass power generation business as an initiative that contributes to CO₂  reduction through the use of renewable energy and local production and consumption of energy. To date, we have invested in Tosa Green Power Co., Ltd. in Kochi Prefecture and Fukui Green Power Co., Ltd. in Fukui Prefecture, and have developed the Keihin Biomass Power Plant, which utilizes a former Refinery refinery site.
In January 2023, we began commercial operation of the Tokuyama Biomass Power Plant, the group's fourth site. This power plant utilizes part of the site of Refinery (currently Tokuyama Complex), which closed in 2014, and existing infrastructure. Approximately 70% of Japan's land area (37.8 million hectares) is forest, and the utilization of thinned wood that remains unused has been a long-standing issue. For the time being, our company will use imported wood pellets and palm kernel shells (PKS)*, but in the medium to long term, we will use domestically produced thinned wood and sawn wood scraps to create an environment-friendly solution. We will contribute to sustainable forest creation, forestry promotion, and the cyclical use of domestic forest Resources.
In addition, our company has been participating in the Woody Biomass Utilization Promotion Council, which was launched in January 2021 by Shunan City, Yamaguchi Prefecture, since its inception. Taking advantage of the regional characteristics of both abundant forest Resources and biomass power generation facilities, we will work together with local governments to promote the use of domestically produced woody biomass materials, and build and develop a circular economy through local production and local consumption of energy and promotion of forestry. We will continue to contribute to

*Both wood pellets and PKS have obtained third-party certification at the supplier, ensuring sustainability and traceability in production and manufacturing processes, and consideration for the global environment, biodiversity, working environment, etc. Use approved materials.

●Image of cyclical use of forest Resources (created by our company based on the figures published in the Forestry Agency's FY2021 Forest and Forestry White Paper)

森林資源の循環利用イメージ(林野庁 令和3年度森林・林業白書の掲載図を基に当社で作成)図版
森林資源の循環利用イメージ(林野庁 令和3年度森林・林業白書の掲載図を基に当社で作成)図版
森林資源の循環利用イメージ(林野庁 令和3年度森林・林業白書の掲載図を基に当社で作成)図版

Construction of a geothermal power plant in Yuzawa City, Akita Prefecture

As part of our efforts to expand our geothermal business, we are jointly working with INPEX Corporation and TEPCO Renewable Power Co., Ltd. on a plan to install a geothermal power plant (name: Snail Mountain Power Plant, output: 15,000 kW) in Yuzawa City, Akita Prefecture. We have decided to move on to the construction phase. The power plant will be built on Mt Snail and will be operated by Oyasu Geothermal Co., Ltd., a company invested in by three companies, with operation scheduled to begin in March 2027. As a result of the blowout test (demonstration test to evaluate production capacity) conducted in 2021, it is expected that stable production of geothermal fluid (steam and hot water) equivalent to an output of approximately 15,000 kW will be possible in the long term. Yes, the electricity generated is certified under the renewable energy FIT (Fill-in Tariff) system. In addition, the Snail Mountain Power Plant will work to construct and operate power plants that contribute to the local community by designing them with consideration for the environment and landscape. Unlike renewable energies such as solar power generation, geothermal power generation has been attracting increasing attention in recent years as an energy source that can provide a stable power supply regardless of the weather. We will continue to actively promote the spread and expansion of renewable energy, and hope to contribute to Japan's energy security and the realization of a low-carbon society.

Verification of commercialization of pumped storage hydropower generation at the Musselbrook coal mine site

マッセルブルック石炭鉱山跡地における揚水型水力発電の事業化検証の様子

Leveraging its business base in Australia, the company is considering using former mining sites as bases for various renewable energy sources. We have begun a joint feasibility study with Australia's power company AGL Energy for a pumped storage power generation project that will utilize the former site of Australia's Musselbrook Coal Mine, which will be completed in 2022. Australia has favorable climate conditions such as wind and sunlight, and is a large country with abundant renewable energy potential, so the Australian government is promoting an energy transition toward decarbonization. In particular, energy storage through pumped storage power generation is expected to contribute to power system stability and play an essential coordinating role in the transition to renewable energy. We will continue to actively respond to Australia's energy transition and work to create low-carbon and decarbonized businesses.

Expanding supply of biomass fuel

Idemitsu Green Energy Pellets

Coal-fired power generation emits more CO₂ per kWh (amount of electricity generated) than other power sources, so there is a need for solutions to reduce CO₂ emissions. One of these is the use of biomass fuel, which is a carbon-neutral raw material. Biomass fuel is an organic material derived from plants, which absorbs CO₂  through photosynthesis during the growth process of living organisms.
By 2030, we are aiming for annual production of 3 million tons of Idemitsu Green Energy Pellets a biomass solid fuel to replace coal. We will complete construction of a factory in Vietnam in fiscal 2023, and will continue to contribute to carbon neutrality by expanding our production base and production volume.

●Production system roadmap (image)

生産体制ロードマップ(イメージ)

Development and provide for society of innovative technology

Joint study towards CCUS implementation in Tomakomai area, Hokkaido

Joint study towards CCUS implementation in Tomakomai area, Hokkaido

Our company, Hokkaido Electric Power Co., Ltd., and Japan Petroleum Resources Co., Ltd. are three companies in the Tomakomai area of Hokkaido that utilize the business bases and strengths of the three companies to develop CCUS (Carbon dioxide Capture, Utilization, and Storage: CO₂ capture and We have started a joint study toward the realization of effective utilization and storage. With a view to launching a CCUS project that connects multiple points in the Tomakomai area by 2030, we are conducting technical studies related to CO₂ emission points, CO₂ recovery equipment, CO₂ transport pipelines, and suitable site surveys for CO₂ storage points. We will proceed with specific investigations and examinations, focusing on the following. In addition to storing CO₂ , we will also take on the challenge of using it as Resources to produce synthetic fuel.

Calculation of CO₂ reduction contribution *1

To achieve CN, we believe that it is necessary not only to reduce our own direct emissions from business operations, but also to create "avoided emissions" that contribute to reducing emissions throughout society through the provision of new products and services. In order to visualize the avoided emissions, we have begun calculating the avoided emissions amount with reference to guidelines issued in Japan and overseas. In fiscal 2023, we calculated the avoided emissions amount of renewable energy and the boiler control optimization system (ULTY-V plus).
We will continue to work to expand the scope of our calculations and contribute to the decarbonization of society by creating new contributions to avoided emissions.

● FY2023 CO₂ reduction contribution performance

Evaluation method Evaluation target Contribution to avoided emissions
(1,000t-CO₂)
Calculation formula ※3
Stock Base
(Evaluation period: one year)
Solar power 200 Actual power generation volume (kWh) x (CO₂ emission coefficient of electricity in each country or area (t-CO₂/kWh) - CO₂ emission coefficient of renewable energy (t-CO₂/kWh)) x our equity ratio (%)
Wind-power generation 17
Geothermal power generation 16
biomass power generation 214 (Actual power generation (kWh) x average emission factor in Japan (t-CO₂/kWh) - Actual annual input amount by fuel type (MJ) x GHG emission factor by fuel type (t-CO₂/MJ)) x our equity ratio (%)
Flow-based
(Evaluation period: product lifetime)
Boiler control optimization system
ULTY-V plus
1,101 Boiler coal consumption before the introduction of ULTY-V plus at the customer's site (t coal /year) x Coal reduction rate due to the introduction of ULTY-V plus x Emission coefficient during coal combustion (t-CO2/t coal) x Service life (years) x Our equity ratio (%)
  • A quantification of the contribution to CO₂ emission reductions achieved by providing products and services that contribute to CO₂ reductions compared to providing conventional products and services.

  • Main guidelines used as reference: METI "Guidelines for Quantifying Greenhouse Gas Emissions Avoidance Contributions," Japan Life Cycle Assessment Institute "Guidelines for Calculating Greenhouse Gas Emissions Avoidance Contributions," GX League "Basic Guidelines for Disclosure and Assessment of Climate-Related Opportunities," WBCSD "Guidance on Avoided Emissions"

  • Refer to the IEA (2019) for the average electricity emission factors of each country, and refer to literature values such as documents from the Ministry of the Environment for other emission factors.