In the "Cool Earth 50", which was proposed by Japanese prime minister Sinzo Abe at G8 Summit in Hailigendamm 2007, it is said that technological innovation is the key for the coming new era of low carbon society. The BEST can be such an innovative technology, because it has the potential to decide a goal for the sustainable future by backcasting method. In this report, an outline of a basic and/or simplified version of the BEST, which will be newly developed based on the BEST professional version, is shown. In addition, new organization of the committee on the BEST development and a result of an annual energy consumption simulated by the BEST are introduced.
