Due to the uncertain situation of the future energy supply, Korea must develop her own renewable energy sources such as, especially, the solar energy as alternatives to the conventional energy sources.
Extensive R & D efforts are being made to effectively utilize this renewable energy source. A variety of different technologies for utilizing solar energy have been proven to be technically feasible. Here, some of the promising technologies and their applications are briefly described and their potentials are discussed.
In addition, this paper defines the technical terminologies and the concepts of the solar heating and cooling systems. Also discussed are the advantages & disadvantages, the initial investment, and the commercialization plan （by the Korean government） of the solar heating systems. Finally, the brief recommendations were made on the practical applicability of each technology according to its priority.