NOVELTY - The system has a set of curved mirrors (1-3, 1-5, 1-6, 1-22) for deflecting a set of solar rays (1-21) for forming a cumulative light beam to be driven downwards into a vertical pipe (1-2) and converting water (1-7) into steam (1-19). The light beam is driven upwards through another pipe by natural circulation. A steam turbine (1-17) is driven after the water is driven down through a separate pipe by gravity and drives a water turbine (1-11). The steam and water turbines drive an electrical generator (1-10) or an alternator (1-18) for producing electricity.    USE - Power generation system for use in a floating vessel at a river, sea, channel and canal for supplying power and heat to mountainous areas, high altitude places, low altitude places, lake shores, sea shores, lakes, rivers, river sides, seas, ships, boats, submarines, trains, lorries, trailers, aircrafts, air cushion ground effect vehicles, ground effect vehicles, maritime vehicles, naval vehicles, helicopters, airplanes, space planes, spacecraft, space stations, buildings, houses, factories or factory buildings, communication or telecommunication towers, airports, airport control towers, hospitals, tower blocks, skyscrapers, quarries, mines, harbors, cranes, power stations, cooling towers, antennas, oceanographic vessels, icebreakers, offshore vessels, wind turbine offshore vessels, oil tankers, container vessels, solar thermal power generation offshore vessels, thermal power generation offshore vessels, workboats, work vessels, tugs, marine vessels, oil rigs, oil rig towers, oil drilling towers, oil drilling vessels, industrial vessels, crane masts, cranes, wind turbines, wind turbine masts, signaling masts, signaling towers, railway signaling towers, railway signaling masts, traffic light masts, jack-up cranes, jack-up vessels, jack-up ships, jack-up rigs, rigs, barges, floating barges, sea barges, river barges, canal barges, railway catenary pillars, railway catenary masts, road traffic masts, road lighting masts and street lighting masts (all claimed).    ADVANTAGE - The system uses a very small ground surface area due to compact architecture of the tower and positioning of the minors, thus offering a totally renewable highly efficient system in a cost-effective and environmentally friendly manner, while offering environmentally friendly shipping with little fossil fuel consumption and avoiding drilling, digging or earth removing cost.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of a power generation system.    Vertical pipe (1-2)    Curved mirrors (1-3, 1-5, 1-6, 1-22)    Water (1-7)    Electrical generator (1-10)    Water turbine (1-11)    Steam turbine (1-17)    Alternator (1-18)    Steam (1-19)    Solar rays (1-21)