The present and future OM solar system.

The OM solar system is one of various passive systems. As is in the general passive system, the technique in the OM solar system works with the designing and architectural space as a unity. In other words, the technique is a part of the designing. Nowadays a lot of new technique have been developed and all kinds of related technology are born. During the past nine years, the system has been already employed in about eight thousand homes and sixty public buildings all over Japan. This paper describes the followings: the principle of the system, the popular methods, the new technology, OM meteorological data, the computer simulation, and the prospects for the system.