Abstract
Deep ocean water (DOW) has attracted special interest as one of the renewable resources with great potential. The purpose of this study is to evaluate feasibility of a large scale DOW pumping-up/distribution, on the assumption that the demand of the DOW significantly increases in the near future. In this paper, economics for two types of the DOW pumping-up systems, floating-type and land-based systems, are investigated as the first step of this study. The results of the economic analysis show that the break-even point price of DOW for floating-type is lower than that for land-based one, and the price of the desalinated drinking water becomes comparable to present public service water when the capital share rate is higher than 50%.
