<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1815-5901</journal-id>
<journal-title><![CDATA[Ingeniería Energética]]></journal-title>
<abbrev-journal-title><![CDATA[Energética]]></abbrev-journal-title>
<issn>1815-5901</issn>
<publisher>
<publisher-name><![CDATA[Universidad Tecnológica de La Habana José Antonio Echeverría, Cujae]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59012021000300045</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sistemas fotovoltaicos con limitaciones de terreno: la doble orientación como alternativa]]></article-title>
<article-title xml:lang="en"><![CDATA[Photovoltaic systems with land constraints: the two-sided orientation as an alternative]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Padrón Suárez]]></surname>
<given-names><![CDATA[Lenyer]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez Urdaneta]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valladares Aguilera]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Empresa de Fuentes Renovables de Energía  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Empresa de Ingeniería y Proyectos de la Electricidad  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>42</volume>
<numero>3</numero>
<fpage>45</fpage>
<lpage>55</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59012021000300045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59012021000300045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59012021000300045&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el hemisferio Norte, los sistemas fotovoltaicos de ángulo fijo, como regla, se orientan al Sur para la maximización de la energía por unidad de potencia. Recientemente se han instalado varios parques en terrenos y techos con la doble orientación Este-Oeste. Con ello se obtienen varias ventajas: más energía y potencia por unidad de superficie, reducción de sombreado entre paneles, mayor generación en horas tempranas y tardías del día y durante el verano, menor vulnerabilidad al viento y mejores resultados económicos, entre otras. Se realizan la simulación con los datos meteorológicos de un sitio en Cuba, comparan los resultados con aquellos obtenidos de simulaciones con sistemas de ángulo fijo, diferentes ángulos de inclinación, distancia entre inicios de filas, concluyendo que los sistemas de doble orientación incrementan la generación anual en la misma superficie, así como una &#8220;suavización&#8221; de la curva de generación durante el día.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In the Northern Hemisphere, fixed tilt systems, as a rule of thumb, face south for energy maximization per power unit. In relatively recent times, some solar parks have been mounted with two-sided orientation East-West in grounds and roofs. Several advantages are obtained: more energy and power per area unit, reduction of shading between panels, greater generation in early and late hours of the day and during the summer, less vulnerability to wind of the structures and better economic results, among others. The authors carry out the simulation with the meteorological data of a site in Cuba. They compared the results with those obtained from simulations with fixed tilt systems and different tilt angles and distance between the beginning of rows, and conclude that with the two-side systems, an increase in annual generation is obtained in the same area, as well as a "smoothing" of the generation curve during the day.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ángulo fijo]]></kwd>
<kwd lng="es"><![CDATA[limitación de superficie]]></kwd>
<kwd lng="es"><![CDATA[orientación Este-Oeste]]></kwd>
<kwd lng="en"><![CDATA[fixed tilt]]></kwd>
<kwd lng="en"><![CDATA[land constrain]]></kwd>
<kwd lng="en"><![CDATA[East-West orientation]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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