Analysis of electricity generation in domestic photovoltaic systems, from the perspective of energy cost savings

Currently, it is increasingly common to find distributed generation systems in Mexico, especially in places where the cost of electricity becomes high, such as in cities with extreme temperatures that require air conditioning systems throughout the year. The present work aims to analyze four photovoltaic solar systems for domestic use, to determine if there is an economic benefit as a result, in the city of Nogales, Sonora. For which it was necessary to interpret the data of the payment receipt, visit the locations to obtain the installation characteristics and make a comparison between the monitored data and the calculated one. One of the outstanding results was that the difference in inclination angle in a range of ± 10 degrees basically did not affect the efficiency of the systems. In addition to a case with a high energy cost, due that the consumption is greater than the generation of the SSFV. This work contributes with important information to the community, so that better decisions can be made regarding how to reduce the cost of energy used in homes, as it can be approached from the point of view of installing an SSFV and awareness of energy use.