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International Journal of Photoenergy
Volume 2015, Article ID 545831, 12 pages
Research Article

Method to Calculate the Electricity Generated by a Photovoltaic Cell, Based on Its Mathematical Model Simulations in MATLAB

1Scientific Research Center of Yucatan, A.C., 43 Street, No. 130, Chuburná Hidalgo, 97200 Mérida, YUC, Mexico
2Department of Engineering, Autonomous University of Yucatán, Nonpolluting Industries Avenue, No. 150, Cordemex, 97310 Mérida, YUC, Mexico

Received 18 May 2015; Revised 7 September 2015; Accepted 8 September 2015

Academic Editor: Xudong Zhao

Copyright © 2015 Carlos Morcillo-Herrera et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents a practical method for calculating the electrical energy generated by a PV panel (kWhr) through MATLAB simulations based on the mathematical model of the cell, which obtains the “Mean Maximum Power Point” (MMPP) in the characteristic - curve, in response to evaluating historical climate data at specific location. This five-step method calculates through MMPP per day, per month, or per year, the power yield by unit area, then electrical energy generated by PV panel, and its real conversion efficiency. To validate the method, it was applied to Sewage Treatment Plant for a Group of Drinking Water and Sewerage of Yucatan (JAPAY), México, testing 250 Wp photovoltaic panels of five different manufacturers. As a result, the performance, the real conversion efficiency, and the electricity generated by five different PV panels in evaluation were obtained and show the best technical-economic option to develop the PV generation project.