YKK AP's Goal of Carbon Neutrality
The Japanese government's "2050 Carbon Neutrality Declaration" in 2020 has spurred on carbon neutrality efforts in Japan. This section will explain why we must tackle this issue and how YKK AP intends to contribute.
Table of Contents
- Promoting carbon neutrality to save the planet from the climate crisis
- Incorporating greenhouse gas emission reductions into YKK AP's business strategies
- Target-setting and activities in Scopes 1, 2, and 3
-
Improving material recycling rates and transportation efficiency -
Visual Control to Achieve Carbon Neutral Facilities - Helping reduce CO2 emissions in society as a whole through use of our products
- Raising employee awareness
Promoting carbon neutrality to save the planet from the climate crisis
In October 2020, the Japanese government declared its goal of achieving carbon neutrality — the reduction of net greenhouse gas emissions to zero — by the year 2050. Reducing net emissions to zero means that the total amount of CO2 and other greenhouse gases emitted after subtracting the amount absorbed through afforestation, forest management, etc. is effectively zero.
As of 2017, the global average temperature has already increased by about 1℃ relative to pre-industrial (1850–1900) levels*. If this pace continues, temperatures are projected to rise even more each year.
The Paris Agreement, adopted in 2015 to resolve this global challenge of climate change, adopted the "2℃ target," which calls for "keeping the global average temperature increase well below 2℃ above pre-industrial levels and pursuing efforts to limit the increase to 1.5℃." To achieve this goal, more than 120 countries and regions are working toward the goal of carbon neutrality by 2050.
Furthermore, in recent years, a series of scientific studies have shown that a 1.5℃ increase will have a significant impact on the global environment, and a more rigorous standard, the "1.5℃ target," has been established to limit the average temperature increase to 1.5℃ or less.
* Source: Japan Meteorological Agency(Information in Japanese)
https://www.data.jma.go.jp/cpdinfo/temp/an_jpn.html
Incorporating greenhouse gas emission reductions into YKK AP's business strategies
The Science Based Targets initiative (SBTi), established in 2014, is an international organization that promotes setting reduction targets aligned with scientific evidence for companies working to reduce greenhouse gas emissions. The "Science-based targets," are a set of global standards for companies to follow when setting greenhouse gas emission reduction targets consistent with the levels required by the Paris Agreement.
YKK AP has been a supporter of the SBTi since 2017, a relatively early stage among Japanese companies, and has committed to the goals it has set. The SBTi declaration standards were raised to a more stringent level after July 2022, but prior to that, we were certified in February 2021 as meeting the new standards as a "target well below 2℃."
The Company also endorsed the Task Force on Climate-related Financial Disclosures (TCFD) launched by the Financial Stability Board in 2019. We understand the risks and opportunities posed by climate change and reflect them in our management strategies, including countermeasures. (See Co-existence with the Environment and the YKK AP Environmental Report (Information in Japanese) for more details.)
Target-setting and activities in Scopes 1, 2, and 3
Reducing greenhouse gas emissions requires definitions (scopes) by which to measure emissions. These are Scopes 1, 2, and 3. Scope 1 covers greenhouse gases emitted directly through corporate activities, while Scope 2 covers greenhouse gases emitted indirectly through electricity consumption at manufacturing sites and offices. Scope 3 covers indirect greenhouse gas emissions other than Scopes 1 and 2, and relates to the supply chain as a whole.
YKK AP's CO2 reduction targets are to achieve a 50% reduction in Scopes 1 and 2 and a 30% reduction in Scope 3 (relative to FY 2013) by FY 2030. Beyond that, we aim to achieve zero emissions by 2050.
Improving material recycling rates and transportation efficiency
An analysis of the composition of CO2 emissions associated with YKK AP's business activities across the entire supply chain shows that Scope 3 emissions account for the majority of the company's CO2 emissions. Among them, emissions from purchased materials used in the manufacture of products account for 80% of the total (in FY 2020). For us, therefore, efforts to reduce emissions pertaining to materials will have the greatest impact on our efforts to become carbon neutral.
Aluminum materials account for 87% of CO2 emissions from purchased materials. Aluminum is also known as "electricity in a can" because it requires large amounts of electricity to extract the metal from minerals such as bauxite.
However, aluminum also has many exceptional attributes in terms of recycling the material already on the market, and it is often referred to as the "king" or "honors student" of recycling. This is because electrolysis, which is needed to extract aluminum from minerals, is no longer necessary, and its melting temperature of 660℃ is low for a metal, so less energy is needed to recast it. It is said that generally, only 3% of the energy is needed when using recycled materials compared to when making new aluminum from minerals*.
Aluminum window frames, as well as automobile tire wheels, and many other products made from aluminum have been available in Japan since its era of rapid economic growth. We have introduced a dedicated recycling furnace and are working to increase the use of recycled scrap aluminum from the market. We also recycle all scrap materials and other materials generated in our in-house manufacturing processes, thereby contributing to a circular economy and the reduction of CO2 emissions.
We recycle the vinyl produced during the manufacturing process for vinyl windows and after use. The rate of internal recycling of scrap materials produced during manufacturing was 27% in FY 2021, and we are aiming to achieve 74% by 2024. We are also working with industry associations on a system to make use of discarded vinyl windows after they are used in residential homes and other buildings.
In addition, in Scope 3, we are working to improve the efficiency of transporting products and materials. We are working on "trunk line relay transportation," which includes consolidating transportation routes and improving loadability by combining partial loads, "secondary delivery," which includes joint delivery and alternate-day delivery, and "modal shift," which includes using railroad containers.
* Source: Japan Aluminum Can Recycling Association(Information in Japanese)
http://www.alumi-can.or.jp/publics/index/24/
Visual Control to Achieve Carbon Neutral Facilities
Fuel reductions in manufacturing processes (Scope 1)
For Scope 1, which refers to CO2 emitted directly through the company's own activities, we are working to reduce the amount of fuel used in our manufacturing processes.
In terms of what can be done with existing technology, we have already begun to electrify heat source equipment and switch to natural gas by using gas burners, in addition to conserving energy for production equipment and increasing its efficiency. We are also developing and verifying, based on existing technology, a switch to carbon-neutral methane, co-firing with hydrogen gas, and the use of hydrogen and ammonia in gas burners.
Electricity saving and energy creation (Scope 2)
Scope 2 refers to CO2 emitted indirectly through the use of electricity in corporate activities. As such, we are working to reduce our electricity consumption through energy saving and energy creation.
In terms of our energy creation efforts, we are conducting trials to introduce solar power generation (installed on rooftops and in fields), hydroelectric power generation (using the power of water flowing through pipes), biomass power generation and boilers (using wood and RPF generated during manufacturing for in-house consumption), and wind power generation (using exhaust wind inside factories).
We plan to dramatically increase the deployment of these renewable energies from FY 2022 onwards, and in particular, solar power generation facilities are being installed one after another at our plants in Japan and overseas.
Achieving carbon-neutral facilities through visualization
To measure progress in reducing CO2 emissions in Scopes 1 and 2, it is essential to visualize emissions. In FY 2021, we established a database to identify energy consumption of each equipment and visualize CO2 emissions from the manufacturing phase. By FY 2022, the database will enable automatic calculation and visualization of CO2 emissions from the design and development phase of new equipment.
In terms of our products, meanwhile, we will revise the "Environmentally-Friendly Design Evaluation Sheet" and launch a system to have CO2 emissions linked with evaluation criteria during design and development, as well as encouraging the development of environmentally friendly equipment with lower CO2 emissions when manufacturing new products.
The new Saitama Factory, which will exemplify these efforts, is scheduled to start operation in September 2023. The new Saitama Factory will be carbon neutral as a result of improved thermal insulation of the building, windows that provide excellent thermal insulation and ventilation, dimmer lighting, and high-efficiency air conditioning, as well as the sourcing of solar-generated and other renewable electricity.
Reductions in CO2 emissions through the introduction of renewable energy to YKK AP
・Installation on idle land and building roofs (new construction, no reinforcement)
・Installation on the basis of standby power
Bases where solar power generation equipment is installed
Helping reduce CO2 emissions in society as a whole through use of our products
To achieve carbon neutrality throughout society, the housing and building construction industries are promoting the spread of net zero energy houses (ZEH) and net zero energy buildings (ZEB).
According to our calculations, the amount of heat that flows into a house from the outside through the windows accounts for more than half of the total. Our high thermal insulation products reduce the amount of energy used for heating and cooling, contributing significantly to the reduction of CO2 emissions. We plan for these products to contribute to the reduction of CO2 emissions across society by 696,000 tons of CO2 in FY 2024. This amount is equivalent to the CO2 emissions from 230,000 average households per year (See Graph).
* Applicable products (equivalent to sustainable products)
Vinyl windows: APW 430, APW 330, Plamado H
Composite windows: APSWORD, APW 410
Vinyl inner windows: Mado Remo - PLAMADO U Inner Window
Thermal insulation doors: InnoBest, Venato D30, Kantan Door Remo, Concord S30
Commercial thermal insulation windows: EXIMA 37, EXIMA 77, APSWORD NEO-LB
* Conventional products
[New construction] Windows: Aluminum windows with double glass,
Doors: Aluminum doors
[Remodeling] Windows: Aluminum windows with single glass
Raising employee awareness
YKK AP holds "Environmental Action" events twice a year to help employees recognize and put into practice behaviors that will lead to a sustainable society. The number of participants has increased each year, with participation exceeding 97% for the summer and winter events in FY 2021. For example, from January to February 2022, under the theme of carbon neutrality, employees took on the challenge of the "Zero Carbon Action" recommended by the Ministry of the Environment in their daily lives.
By changing the mindset of each and every one of our employees, we will contribute to achieving carbon neutrality in society as a whole.
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