Solar power station having groups of solar collectors

A solar power station comprising a first group of solar collectors each of the collectors of which has a solar radiation absorbing layer, a plurality of spaced parallel walls upstanding from said solar radiation layer forming an insulation structure preventing heat loss from said absorbing layer to ambient air and a plurality of first ducts in thermal contact with said solar absorbing layer through which a heat carrier fluid is adapted to flow and to be heated by heat from the heat absorbing layer;

• a second group of solar collectors each collector of which has a plurality of second ducts, solar concentration means for concentrating solar radiation onto said second ducts to further heat the heat carrier fluid therein;
• fluid cushion means beneath the collector of the first and second groups to support the same on a body of water;
• said first and second groups of collectors being joined to form an annular platform rotatable on a body of water;
• means for rotating said annular platform at a circumferential speed whereby said spaced parallel walls remain parallel to the projection of sun rays in a horizontal plane;
• and two underwater thermal storage areas each in thermal communication with one group of collectors.