Stand-Alone Photovoltaic System Assessment in Warmer Urban Areas in Mexico
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Author
Perea Moreno, Alberto Jesús
Hernandez-Escobedo, Quetzalcoatl
Garrido, Javier
Verdugo-Diaz, Joel Donaldo
Publisher
MDPIDate
2018Subject
Stand-aloneUrban areas
Mexico
Photovoltaic system
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The aim of this study is to examine the possibility of using a stand-alone photovoltaic
system (SAPVS) for electricity generation in urban areas in Southern Mexico. In Mexico, an urban
area is defined as an area where more than 2500 inhabitants live. Due to constant migration from
the countryside to the cities, the number of inhabitants of urban localities has been increasing.
Global horizontal irradiation (GHI) data were recorded every 10 min during 2014–2016 in
Coatzacoalcos in the state of Veracruz located on 18 0800900 N and 94 2704800 W. In this study, batteries
represented 77% of the total cost, 12 PV panels of 310 W could export 5.41 MWh to the grid, and
an inverter with an integrated controller and charger was selected, which decreased the initial
cost. The city of Coatzacoalcos was chosen because the average annual temperature is 28 , with an
average relative humidity of 75% and an average irradiance of 5.3 kWh/m2/day. An emission
factor 0.505 tCO2/MWh of greenhouse gases (GHG) were obtained, based on the power system,
the reduction of net annual GHG would be 11 tCO2 and a financial revenue of 36.951 103 $/tCO2
would be obtained. Financial parameters such as a 36.3% Internal Rate Return (IRR) and 3.4 years
payback show the financial viability of this investment. SAPVSs in urban areas in Mexico could be a
benefit as long as housing has a high consumption of electricity.