Closed systems like greenhouse working in controlled atmosphere represent the most innovative solution in the area of vegetable cultivation in a protected environment (protected crops). This technology maximizes simultaneously microclimate, productivity, quality of food and energy, water and CO2 savings. In the solar farm, the energy needed for cultivation is totally generated through renewable sources (photovoltaic, geothermal, biogas from solid waste). In addition, the greenhouse enclosed controlled, powered by sustainable energy technologies integrated overall solar park is an opportunity scientific, economic, environmental and social importance for food agriculture in the Third Millennium. ENEA proposal of a closed system and controlled, Solar Farm, allows all types of agricultural production, from leaf plants in fruits and tubers, including medicinal plants. More specifically, Solar Farm allows you to meet the daily energy (1800 kcal per day) and needs vitamins (vitamin C and A) of about 3,000 people. More generally, Solar Farm provides the vitamins recommended daily intake for about 42 million people (under the base of 100 mg per day per person of vit. C and 800 µg per day per person of vit. A).