The high consumption of energy, especially in the summer period in the state of Sonora and its impact on the education budget is a major concern to make this research. Sonora is the second biggest state of Mexico, and because of its geographical position in the desert of Sonora, the temperatures in spring and summer are really high (28°C - upwards of 50°C). This leads to the use of electric devices such as A/C and fans to control the climate. This has an impact on the electricity consumption and raises the costs for electricity for schools, business, families, etc.
The elementary education in Mexico is free. This means the state pays for the costs of education. The second biggest cost of education after employee salaries is the electric bill or cost of energy. This can be a major factor in the almost lack of investment in new infrastructure, technologies and more employees in the education system.
This research focuses on determining the economic feasibility of converting the energy consumption in elementary schools in Sonora to solar energy, and making them more cost efficient. The study finds that solar energy is economically feasible over the 25-year life span of a solar module system when it is used as a complement to electricity from the grid. As long as schools are allowed to export surplus solar power to the grid during the winter for power credits that they can use to cover solar power shortfalls in the summer, schools can substantially reduce electricity costs.

REFERENCES
Amtmann, M. (2009). Market niches for grid-connected photovoltaic systems in Mexico. Retrieved August 19, 2010, from http://www.gtz.de/de/dokumente/sp-Nichos-de-mercado-para-sistemas-fotovoltaicos-en-conexion-la-red-electrica-en-Mexico.pdf
Argote, L., & Epple, D. (1990). Learning curves in manufacturing. Science, 247(4945), 920.
Borenstein, S. (2008). The market value and cost of solar photovoltaic electricity production, Center for the Study of Energy Markets: University of California Energy Institute.
Comisión Federal de Electricidad. (2010). The Federal Electricity Commission, from http://www.cfe.gob.mx/Paginas/Home.aspx
Deutsche Bank Company Research's. (2009). Solar Photovoltaic Industry: Looking Through the Storm. Global Markets Research.
Deutsche Bank Company Research. (2009). Solar photovoltaic industry: Looking through the storm. Global Markets Research.
DOE. (2010). The U.S. Department of Energy. Retrieved August 19, 2010, from http://www.energy.gov/
Harmon, C. (2000). Experience curves of photovoltaic technology. Laxenburg, IIASA, pp, 17.
Instituto Nacional de Estadística y Geografía. (2010). Instituto nacional de estadística y geografía Retrieved August 20, 2010, from http://www.inegi.org.mx/inegi/default.aspx
International Energy Agency. (2010). IEA Photovoltaic Power Systems Program 2007 Annual Report. Retrieved July 3, 2010, from http://www.iea-pvps.org/products/download/rep_ar07.pdf
Johansson, T. B., Kelly, H., Reddy, A. K. N., & Williams, R. H. (1993). Renewable fuels and electricity for a growing world economy. Renewable Energy: Sources for Fuels and Electricity, 1-72.
JP Morgan. (2008). Strategic business model innovation in the solar photovoltaic industry: A case study of the PPA business model.
Maycock, P., & Wakefield, G. (1975). Business analysis of solar photovoltaic energy conversion.
National Renewable Energy Laboratory. (1998). National Renewable Energy Laboratory. Retrieved July 14, 2010, from http://www.nrel.gov/
Neij, L. (1999). Dynamics of energy systems-methods of analysing technology change. Unpublished Doctoral Thesis, Lund University, Lund.
Notton, G., Muselli, M., & Poggi, P. (1998). Costing of a stand-alone photovoltaic system. Energy, 23(4), 289-308.
NREL. (1998). National Renewable Energy Labotory. Retrieved July 14, 2010, from http://www.nrel.gov/
O'Rourke, S., Kim, P., & Polavarapu, H. (2010). Solar photovoltaic industry 2010 global outlook: Deja vu? Global Markets Research Retrieved August 18, 2010, from http://solar.gwu.edu/index_files/Resources_files/Solar%20PV%20outlook%20FITT_8%20Feb%2010_PDF.pdf
Oseguera, O. (2010, August 12). Sunny Mexico: An energy opportunity. Greentech Media, from http://www.greentechmedia.com/articles/read/sunny-mexico-an-energy-opportunity/
Price, S., & Margolis, R. (2008). Solar technologies market report. Retrieved. from http://www.nrel.gov/analysis/pdfs/46025.pdf.
SENER. (2010). Sener ingenería y sistemas S.A. Retrieved August 1, 2010, from http://www.sener.es/index.html
Thomas, M., & Deblasio, R. (1999). Photovoltaic systems: An end-of-millennium review. Progress in Photovoltaics: Research and Applications, 7(1), 1-19.
Watanabe, C., Wakabayashi, K., & Miyazawa, T. (2000). Industrial dynamism and the creation of a “virtuous cycle” between R&D, market growth and price reduction: The case of photovoltaic power generation (PV) development in Japan. Technovation, 20(6), 299-312.
Willarms, R. H., & Terziari, G. (1993). A benefit/cost analysis of accelerated development of photovoltaic technology. NJ: Princeton University.