USING SOLAR ENERGY TO PRODUCE ELECTRICITY IS ONE OF THE MOST PROMISING SOLUTIONS TO THE GLOBAL ENERGY CRISIS. HOWEVER, DEVICES CAPABLE OF CONVERTING SUNLIGHT INTO ELECTRICITY MUST BE RELIABLE AND COST-EFFECTIVE IN ORDER TO COMPETE WITH CONVENTIONAL ENERGY SOURCES. THE ADVANCED STRATEGY OF TERRASOS ON THE ONE HAND IS TO COMBINE THE IMPROVEMENT OF COMMERCIAL SILICON SOLAR CELLS THROUGH THE USE OF APPROPRIATE TECHNOLOGICAL TREATMENTS ABLE TO MODIFY THE SURFACES INVOLVED IN THE PHOTO-CONVERSION PROCESSES AND, ON THE OTHER HAND, TO ACCOMPANY THE CELL WITH A TECHNOLOGICAL/COMPUTER SYSTEM AIMED AT ENSURING OVER TIME A CONTINUOUS MONITORING OF THE DESIRED EFFICIENCY LEVEL. THE TECHNOLOGICAL SOLUTIONS DEVELOPED BY TERRASOS WILL INCLUDE THE DEPOSITION OF INNOVATIVE MATERIALS AND THE MODIFICATION OF THOSE ALREADY PRESENT ON THE SOLAR CELL. FROM THE POINT OF VIEW OF THE MONITORING OF THE PLANT IN OPERATION WILL BE PURSUED