Summary of the IDEA

Development of IDEA overseas version (adaptation version)

Since IDEA mainly calculates the environmental impact of products and services in Japan, it is not suitable for calculating the environmental impact outside Japan. Even if the same product is used, the environmental impact of energy and raw materials used in the manufacturing, use and disposal stages of the product differs between Japan and China, resulting in a large difference in the environmental impact of each country’s life cycle. In order to study LCA of products in detail, it is essential to build a background database for each country. Below, we compare the CO2 emission intensity of electricity, water supply, and industrial water, which are commonly used in LCA, stored in IDEA in Japan and China.

Comparison example of CO2 emission intensity of Japan and China
Comparison example of CO2 emission intensity of Japan and China

Overseas inventory databases have been established in some countries, such as developed and emerging countries. However, some developing countries do not have sufficient databases, so it will take some time to complete them. In addition, there are few examples like IDEA where all products and services are comprehensively prepared including developed countries.

Therefore, we developed the overseas version of IDEA (adaptation version) with the highest possible accuracy from the inventory data IDEA of Japan which has been prepared at present. IDEA’s overseas version is based on statistical data published in each country to reflect the factors of the country (1) electric power, (2) fuel composition for combustion, and (3) fuel efficiency.

Method for preparing overseas version data of IDEA

Currently IDEA Global Edition is available in China (CHN), Indonesia (IDN), Korea (KOR), Malaysia (MYS), Thailand (THA), Taiwan (TWN), Vietnam (VNM), US (USA), UK (GBR), France (FRA), Turkey (TUR) and Brazil (BRA). IDEA’s overseas version can calculate the environmental impact of importing raw materials and products from the target countries or manufacturing sites in the target countries, reflecting the actual conditions of the target countries. We are also able to provide companies with the opportunity to make decisions on environmental issues when considering future overseas expansion.

Countries covered by IDEA's International Edition