In this paper we want to illustrate the potential estimation for installing photovoltaic systems on rooftop or horizontal building surfaces in residential areas. Different areas will be measured for residential users, and these will be measured using Google Earth and PVWatts software from NREL. The kWh per Year were calculated from the area in PVWatts and with the real consumption of 6 user’s examples. The results showed for all users the areas on their rooftops have the potential to generate three to four times more than what was calculated from the real consumption of each user. With these results and these six residential random data, it is observed that the basic consumption of each user and a surplus could be generated to share with the network microgrids and other residential users. The next step would be quantifying and modeling the benefits of the use of photovoltaic electrical energy arrangements on the rooftops of the users, as a complementary value in supporting the current grid in Puerto Rico. Also, at a global level, to reduce economic dependence on the consumption of fossil fuels and the emission of greenhouse gases, there has been the development of the use of renewable energies.
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