ABSTRACT:
The state of the salt-gradient solar pond technology is reviewed. Highlights of findings and experiences from existing ponds to date are presented, and the behavior, energy yield, operational features, and economics of solar ponds are examined. It is concluded that salt-gradient solar ponds represent a technically feasible, environmentally benign, and economically attractive energy producing alternative. In order to bring this emerging technology to maturity, however, much research and development effort remains to be undertaken. Specific R&D areas requiring the attention and action of technical workers and decisionmakers are discussed, both from the perspectives of smaller, thermally-oriented ponds and larger, electricity generating ponds.