The thermal and energetic results obtained under monitoring of a 3,3 KWp photovoltaic solar system interconnected to the electrical grid of the Faculty of Sciences of the Jorge Basadre Grohmann National University of Tacna (UNJBG), Peru are presented; located at a southern latitude of 17,35 °, longitude 72 ° W and height of 525 meters above sea level in the period 2015-2019. The system generates electrical energy at 340 V DC, which with an inverter transforms it to 220 VAC, 60 Hz which is delivered to the electricity grid of the University City. The photovoltaic system is made up of twelve panels of 275 Wp and 1,65 m 2 each, oriented to the north with a south inclination of 19,5 °, zero azimuth and installed under an architecture that allows the temperature to be automatically monitored and recorded every 15 seconds of the panel, environment and sola...