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Copyright of Anáhuac Journal is the property of Universidad Anahuac del Sur S.C. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

El artículo analiza la implementación de un sistema híbrido de energía solar-diesel-batería en La Guajira y las islas del Pacífico de Colombia, que aún se encuentra rezagado en la provisión del servicio eléctrico, ya que se encuentran alejadas del sistema interconectado nacional. El artículo también analiza la viabilidad de la energía solar como alternativa a la generación de energía tradicional.

In Colombia's rural areas, the main challenges of state public policy converge. In the case of energy, at the Non-Interconnected Areas - NIA, the needs to universalize access to energy, improve service quality, and introduce renewable sources converge and generate environmentally and socially sustainable projects. To fulfill the purposes of the State, the sector requires a robust institutionality, with the technical capacity to ensure that policy is translated into concrete projects that create well-being for the communities and development for the territories. For this purpose, specialized institutions, clear and reliable entities and procedures, coordination among funders and adequate information management are required. [ABSTRACT FROM AUTHOR]

The interconnection of the Central Interconnected System (SIC for its initials in Spanish) with the Northern Interconnected System (SING) have been one of the trending topics in the year 2013 in the Chilean electric industry. Two are the projects that are on target for the interconnection; a high voltage alternating current (HVAC) 500 kV connection, proposed by the French utility GDF SUEZ, and a high voltage direct current (HVDC) ±500 kV planned by the CNE, the Chilean electric regulator entity. Both projects have important differences in technology and there's not too much technical evidence of the problems that could arise in the operation, caused by the SIC-SING interconnection. Low frequency oscillations are studied in this work, using modal analysis for both interconnection projects. A SIC-SING model is developed using DigSilent software, considering 2019 as the year of a possible union of the networks. Two generation scenarios are studied; one where the central system (SIC) sends 1.000 MW to the northern system (SING), and another one where the SING sends 800 MW to the SIC. The modal analysis results show that interconnecting both systems with the HVAC gives arise to a 0.5 Hz unstable oscillation mode. This unstable mode has it origin on the interconnection and it's related to a group of steam machines on the SING system. Whether the SIC-SING system is connected with the HVAC or the HVDC, 0.9 Hz weakly damped modes are observed in both systems. These modes are related to the evolution of the systems at 2019. [ABSTRACT FROM AUTHOR]

Copyright of Revista Técnica Energía is the property of Centro Nacional de Control de Energia CENACE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Técnica Energía is the property of Centro Nacional de Control de Energia CENACE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Energy policy makers usually ignore the response of the demand for electricity to changing prices because they believe that the price elasticity is nil. We show that a "small" price elasticity of demand generates "large" changes in energy shortage probabilities and generation costs when the system operates near capacity for extended periods. The reason is that in the neighborhood of the system's capacity, the short run electricity supply curve is nearly vertical. We make our point by simulating the expected operation of Chile's Central Interconnected System between 2006 and 2010, after the onset of the Argentine gas supply cuts. We show that price increases wrought by the postponement of investments in new plant and gas supply cuts, combined with a "small" monthly price elasticity of demand (0.0548 in absolute value), were enough to drastically reduce the probability of an energy shortage and return it to normal levels. Furthermore, if one ignores the response of demand to price, expected marginal costs are overestimated by 32% and expected total operation costs by 41%. [ABSTRACT FROM AUTHOR]

This paper presents a procedure to study the dynamics of the frequency of the interconnected system Ecuador-Colombia when a generation unit comes out of the system, and when one doesn't have the necessary information of the electric Colombian system, furthermore the paper presents the results obtained when this procedure is applying it to a real example. [ABSTRACT FROM AUTHOR]