Highlights of Environmental Initiatives in FY2002
Development and Design
Recycling and Sales/After Sales
Automobile Peripheral
and Other Businesses
  Housing Business
  Intelligent Transport Systems (ITS)
  Biotechnology and Afforestation Businesses
Environmental Education/
Special Story
Consolidated Environmental Management
Environment-Related Awards Received by Toyota
Continued Reporting of
Environmental Aspects
Chronological Table
Toyota's Housing Group has been developing a comprehensive operation stretching from the sale of environmentally considerate 21st century homes to projects for condominiums and proposals for town creation. In FY2002, a total of 3,500 houses were sold.
In terms of environmental initiatives, Toyota is developing new products which meet "Next-generation energy-saving standards" and has been taking measures to reduce CO
2 emissions at both the occupation stage and the production stage. Toyota is also making efforts to prolong the lifespan of houses through its long-term (30-year) warranty system for major structural supporting elements, promotion of resource conservation and the reduction of waste generation.
Toyota's Housing Group has joined together with dealers, construction companies and suppliers in concerted action to reduce environmental impact and promote the widespread adoption of environmentally considerate housing.
Toyota operates an environmental management system (EMS) based on the ISO 14001 certification acquired in 1998, and advanced initiatives at all its housing works with the aim of achieving its fiscal year goals.
In addition, with regard to the three areas of development and design, procurement and production, and support to dealers, the Toyota Housing Business Environmental Action Plan was formulated based on: (1) TMC's environmental goals; and (2) The Eco Action 21, an environmental action plan which serves as a guideline for the housing industry. Toyota has been promoting measures to reduce environmental impact and achieve these goals.
•Toyota Housing Business Environmental Action Plan and Goals
Action guideline Item Specific action items and goals (FY2005 goals)
1. Development and supply of products with top levels of environmental performance CO2 reduction during the occupation stage •At least 50% of houses built by Toyota to comply with "Next-generation energy-saving standards"
•Fitting of photovoltaic power generation systems, etc., that supply at least 5% of power consumed during the occupation stage
•15% improvement in energy efficiency through successive replacement by new products such as highly energy-efficient lighting and built-in facilities and fixtures
Long-life and durability of houses •At least 80% of homes to be provided with a 30-year long-term warranty contract (FY2003)
•At least 80% of contracted houses to correspond to top rating in Housing Performance Index System
Management and reduction of substances of environmental concern •Reduction of formaldehyde concentration in at least 80% of contracted houses (top rating in Housing Performance Index System) (FY2003)
•Toluene, xylene levels to conform to interior air quality guidelines of the Japan Federation of Housing Organizations
2. Pursuit of production activities that do not discharge waste Promotion of measures to prevent global warming •5% reduction in total CO2 emissions by FY2005 compared to FY2001
Waste reduction and resource conservation •50% reduction in combustible waste generated by FY2003 compared to FY1999, aiming to achieve zero emission
Conservation of water resources •20% reduction in total water consumption by FY2005 compared to FY1995
Reduction of trash at construction sites •70% reduction of on-site trash such as packaging and wrapping material, remnant material and excess material, by FY2005 compared to FY2000
3. Business partners are environmental partners Enhanced cooperation with suppliers •Promotion and support of EMS, thorough management of substances of environmental concern, and promotion of efforts to acquire ISO 14001 certification by suppliers
Enhanced cooperation with dealers •Establishment of EMS, promotion and support of achievement of goals in Toyota Home Dealer Environmental Standards
•Increased support for environmental responses of Toyota Home dealers
The new "SINCÉ RAISON" series launched in April 2003
In the new "SINCÉ RAISON" series launched in April 2003, Toyota adopted "Next-generation energy-saving standards"1 as standard specifications, and worked on the development of new products that take into account environmentally considerate features such as the elimination of asbestos from housing construction materials and expanded use of recycled materials.
The new "SINCÉ RAISON" series of houses are built under the "S&I Home Making Concept"2 as long-life houses that achieve top levels of environmental performance. Energy wastage is reduced by enhanced heat insulation through the standard adoption of insulating double-glazed windows and other features, while CO
2 emissions are approximately 30% lower than the "Next-generation energy-saving standards." Toyota has adopted a number of measures to use clean natural energy sources and reduce energy consumption, including photovoltaic power generation and a rainwater recycling system.
1. Next-generation energy-saving standards: Hermetically sealed and well insulated housing able to reduce by 20% the amount of energy needed for heating and air-conditioning as a means of reducing CO2 emissions to prevent global warming
2. S&I Home Making Concept: Super Skeleton & Intelligent Infill - functions which continue to respond and change according to changing lifestyles within reinforced supporting structural elements that do not change
Reduction of CO2 Emissions
In FY2002, CO2 emissions at the three housing works —Kasugai, Tochigi, and Yamanashi— totaled 6,900 tons. Although the total volume of CO2 emissions increased because production in FY2002 increased by approximately 16% over the previous year, efforts to reduce CO2 emissions resulted in a decrease of emissions per unit of approximately 5%. Conversion to natural gas as an energy source will be among the future measures taken to reduce CO2 emissions and realize FY2005 goals.   •Trend in CO2 Emissions at Production Processes
Conserving Water Resources
Water consumption at the three housing works in FY2002 totaled around 112,000 tons.
Although total water consumption increased due to an increase in production over the previous year, Toyota was able to achieve the fiscal year goal of 122,000 tons.
One specific measure for reduction of water consumption taken at Kasugai Housing Works was to achieve an optimal balance between the volume of washing water and surface treatment agents in the ED (electrodeposition) coating pretreatment process,3 which accounts for 30% of total water consumption at the plant —the greatest volume used among the various processes— thereby reducing usage by 1,000 tons.

3. ED coating: A coating technique in which the metal item to be coated is immersed in a tank filled with the electrodeposition coating material and a high voltage is set up between the tank and the item, causing coating by electrophoresis
  •Trend in Total Water Consumption
Reducing Waste
In FY2002, the total amount of combustible waste generated at the three housing works together was 600 tons, a reduction of 45% from FY1999, the base year for comparison. The main initiative undertaken jointly by the three housing works was to set target reuse rates for waste plasterboard and wood remnants of over 30% and 60% respectively, all of which were achieved to realize a reduction in waste.
At Tochigi Housing Works, Toyota continued, as in FY2001, to implement waste reduction measures using the excess capacity of the wastewater treatment facility. In FY2002, in addition to the processing of waste liquids generated during painting of external walls begun the previous year, Toyota also started processing waste liquids from the electrodeposition process as wastewater, reducing the volume of waste to be processed by 170 tons compared to the previous year and saving 3.1 million yen in processing costs.
At Kasugai Housing Works, in December 2002, Toyota introduced equipment which concentrates the waste liquids generated during the painting of external walls to between one-third and one-quarter of their original volume, resulting in a reduction of around 65 tons in FY2002.
At Yamanashi Housing Works, a reduction in sludge was achieved through settling the chemical sludge4 generated in the painting process. Toyota also reduced paint wastage by 7 tons through measures to prevent leakage during spray painting of external walls.

4. Sludge: Comprehensive term for sediment and suspended matter generated during zinc phosphating in the painting process

Waste liquids concentrating facility
  •Trend in Volume of Waste Generated
Initiatives by Individual Dealers
In 2000, Toyota formulated the Toyota Home Dealer Environmental Guidelines specifying the environmental standards required of dealers. This marked the beginning of a three-year activity program which ended in FY2002.
In FY2003, all dealers are taking independent action based on relevant laws and regulations, while Toyota as a manufacturer provides support in response to the requests of the dealers.
Zero Trash Project at Construction Sites
In FY2002, the volume of waste generated per unit at construction sites of prefabricated houses was 2.8m3 on average, a 48% reduction from 5.4m3 in FY2000.
Toyota's initiatives centered on the reduction of packaging materials used by switching to the use of returnable bags, cardboard boxes, etc. In the future, recycling of waste from tiles and plasterboard will be a key area for implementation.
At construction sites using the EST5 method, the volume of waste generated per unit was 13m3 on average, a 25% reduction compared to FY2000. In the future, emphasis will be placed on reducing usage of curing and packaging material, thermal-insulation materials, and plasterboard. Regarding other components and materials, measures similar to those for the construction of prefabricated houses will be implemented to reduce the volume of remnant and leftover materials.

5. EST (Evolutional System of Toyota): A new steel-frame construction method developed by Toyota Home as a forerunner of the next generation
  •Results of Waste Reduction Measures at Construction Sites of Prefabricated Houses and Goals
Enhancement of Environmental Education System
As part of environmental education for the Housing Group, environmental leaders at Kasugai Housing Works conduct environmental seminars for new employees and those transferred from other groups, based on information provided by the Environmental Affairs Division and other divisions. In February 2003, about 20 seminar participants went directly to construction and other sites and checked individual activities to obtain a greater awareness of environmental preservation.  
Environmental education at a construction site
Earthquake Resistance Test
Test of earthquake resistance
In February 2003, at Obayashi Corporation Technical Research Institute, Kiyose City, Tokyo, a public experiment to test the earthquake resistance of Toyota houses was carried out on a SINCÉ SMART STAGE model. After being subjected to seismic waves of up to level 7 on the Japanese scale, only slight damage, such as dislodging of interior grouting and tears in wallpaper was seen, with no warping or deformation observed in the structure.
Reduction of deterioration and improved structural safety are viewed as environmentally considerate factors in housing performance. Toyota is now using the expertise that it has accumulated in vehicle manufacturing in quality control and manufacturing technology to create homes that are safe, reliable and environmentally considerate.
Previous Page Top Next

©2003 TOYOTA MOTOR CORPORATION. All Rights Reserved