The systems to charge batteries of mobile devices are evolving, nevertheless in off-grid photovoltaic systems the traditional battery charging system is still being used, which presents drawbacks regarding the time it takes for them to complete their charge. The present work implemented a fast charging system using quick charge 3.0 technology to achieve faster and more efficient loading of mobile devices. For this, we experimented with a mobile device charging it with a photovoltaic solar system with quick charge 3.0 technology and a photovoltaic solar system with a conventional charging method of 5V to 2A. The results showed differences of up to 100 minutes in the loading time between one and another technology. Concluding that photovoltaic systems with quick charge 3.0 technology are faster when loading mobile devices.

El objetivo principal de esta investigación consistió en analizar el impacto de la inversión pública en el crecimiento económico de las regiones del Perú, durante el periodo 2001 -2013. La inversión pública se aproxima mediante la ejecución del gasto público en Proyectos de Inversión Pública, las mismas, que se desagregaron en cuatro sectores: social, productivo, infraestructura y otros. Como fuente de información se recurrió a la base de datos del Instituto Nacional de Estadística e Informática y del Portal de Transparencia Económica del Ministerio de Economía y Finanzas. Para el análisis de datos, se utilizó un enfoque metodológico econométrico de datos de panel dinámico propuesto por Arellano y Bond (1991). Los resultados alcanzados sugieren que la inversión pública social tiene un impacto positivo y estadísticamente significativo en el crecimiento económico; además, la evidencia señala que los sectores infraestructura y productivo han generado un impacto positivo sobre el crecimiento, pero resultaron no significativos estadísticamente a un nivel de significancia de 5%; la inversión en otros sectores presentó un impacto negativo sobre el crecimiento económico por ser estadísticamente significativo. Las conclusiones apuntan a demostrar que una buena programación y ejecución del gasto en Proyectos de Inversión Pública pueden ayudar a incrementar el crecimiento económico.

The main objective of this research was to analyze the impact of public investment on the economic growth of the regions of Peru, during the period 2001-2013. Public investment is approached through the execution of public expenditure on Public Investment Projects, which were disaggregated into four sectors: social, productive, infrastructure and others. As a source of information, the database of the National Institute of Statistics and Information and the Portal of Economic Transparency of the Ministry of Economy and Finance were used. For data analysis, an econometric methodological dynamic panel data approach proposed by Arellano and Bond (1991) was used. The results achieved suggest that public investment social has a positive and statistically significant impact on economic growth; In addition, the evidence indicates the sectors infrastructure and productive have generated a positive impact on growth, but were not statistically significant at a level of significance of 5%; investment in other sectors presented a negative impact on economic growth because it is statistically significant. The conclusions point to demonstrate that good programming and execution of spending on Public Investment Projects can help increase economic growth.

No abstract