{"id":278982,"date":"2026-03-30T00:24:05","date_gmt":"2026-03-29T23:24:05","guid":{"rendered":"https:\/\/theprisma.co.uk\/?p=278982"},"modified":"2026-03-30T01:21:26","modified_gmt":"2026-03-30T00:21:26","slug":"el-dilema-energetico-seguridad-y-sostenibilidad","status":"publish","type":"post","link":"https:\/\/theprisma.co.uk\/es\/2026\/03\/30\/el-dilema-energetico-seguridad-y-sostenibilidad\/","title":{"rendered":"El dilema energ\u00e9tico: seguridad y sostenibilidad"},"content":{"rendered":"<p><em>Entre los peligros de accidentes nucleares y las limitaciones de las energ\u00edas renovables, los pa\u00edses enfrentan decisiones complejas para garantizar electricidad limpia y segura. La discusi\u00f3n sobre eficiencia, riesgo ambiental y disponibilidad de recursos marca el futuro del suministro energ\u00e9tico mundial.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #003366;\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-260485\" src=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2023\/03\/Bombilla-luz-pensamiento-hombre-energia-Pixabay.jpg\" alt=\"\" width=\"470\" height=\"311\" srcset=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2023\/03\/Bombilla-luz-pensamiento-hombre-energia-Pixabay.jpg 960w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2023\/03\/Bombilla-luz-pensamiento-hombre-energia-Pixabay-300x200.jpg 300w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2023\/03\/Bombilla-luz-pensamiento-hombre-energia-Pixabay-431x286.jpg 431w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2023\/03\/Bombilla-luz-pensamiento-hombre-energia-Pixabay-862x571.jpg 862w\" sizes=\"auto, (max-width: 470px) 100vw, 470px\" \/>Arnaldo Gonz\u00e1lez Arias<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p>Las termoel\u00e9ctricas emiten CO2, principal gas del efecto invernadero, pero tambi\u00e9n otros gases como el SO2, que produce lluvia \u00e1cida.<\/p>\n<p>Adicionalmente env\u00edan a la atm\u00f3sfera miles de toneladas de cenizas, residuos de carb\u00f3n y metales pesados, e incluso concentrados de material radiactivo natural. Por su parte, los reactores nucleares contempor\u00e1neos casi no emiten contaminantes al aire, aunque peri\u00f3dicamente expulsan peque\u00f1as cantidades de gases radiactivos. Sus residuos son menores en volumen (del orden de un mill\u00f3n de veces) y se controlan mejor que los de las termoel\u00e9ctricas.<\/p>\n<p><strong>Pros y contras<\/strong><\/p>\n<p>Su principal desventaja radica en la alta peligrosidad de los posibles accidentes, sumada al riesgo de los residuos radiactivos y a su alto poder contaminante del medio ambiente, que puede extenderse a cientos y miles de a\u00f1os.<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-229102 alignright\" src=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/ENERGIA-INGLATERRA-BRITANICO-LUCES-CIUDAD-pIXABAY.jpg\" alt=\"\" width=\"469\" height=\"296\" srcset=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/ENERGIA-INGLATERRA-BRITANICO-LUCES-CIUDAD-pIXABAY.jpg 864w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/ENERGIA-INGLATERRA-BRITANICO-LUCES-CIUDAD-pIXABAY-300x189.jpg 300w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/ENERGIA-INGLATERRA-BRITANICO-LUCES-CIUDAD-pIXABAY-87x55.jpg 87w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/ENERGIA-INGLATERRA-BRITANICO-LUCES-CIUDAD-pIXABAY-650x410.jpg 650w\" sizes=\"auto, (max-width: 469px) 100vw, 469px\" \/><\/strong>En la central nuclear de Fukushima, durante la reacci\u00f3n nuclear controlada que tiene lugar en el n\u00facleo del reactor, el uranio enriquecido se divide o fisiona y se transforma en otros elementos, generando calor y gran cantidad de neutrones y otras part\u00edculas subat\u00f3micas durante el proceso.<br \/>\nLos neutrones chocan con otros \u00e1tomos de uranio, que tambi\u00e9n se dividen y emiten m\u00e1s neutrones. El calor generado se usa para calentar agua a presi\u00f3n, que se vaporiza s\u00f3lo al alcanzar los 600 grados.<\/p>\n<p>El proceso es m\u00e1s eficiente que si se lleva a cabo a presi\u00f3n atmosf\u00e9rica, cuando el agua hierve a los 100 grados. El vapor pasa a un intercambiador, donde se licua y regresa al n\u00facleo del reactor para repetir el proceso. Un circuito secundario conteniendo agua limpia recoge el calor del intercambiador y genera vapor, que se env\u00eda a una turbina-generador para producir electricidad.<\/p>\n<p>Este \u00faltimo paso es similar al de una termoel\u00e9ctrica convencional, donde el calor se genera quemando combustible.<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-229565\" src=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/nuclear-planta-Pixabay.jpg\" alt=\"\" width=\"467\" height=\"311\" srcset=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/nuclear-planta-Pixabay.jpg 922w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/nuclear-planta-Pixabay-300x200.jpg 300w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/nuclear-planta-Pixabay-82x55.jpg 82w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/nuclear-planta-Pixabay-650x434.jpg 650w\" sizes=\"auto, (max-width: 467px) 100vw, 467px\" \/>El peligro<\/strong><\/p>\n<p>El reactor y el agua a presi\u00f3n se confinan en un recinto de seguridad para evitar el escape de sustancias radiactivas. Los neutrones destruyen las c\u00e9lulas; las altas concentraciones son letales de inmediato.<\/p>\n<p>Los residuos de elementos radiactivos, incluso a baja concentraci\u00f3n, se alojan en los tejidos y producen cambios en el ADN celular, causando enfermedades que pueden ser irreversibles a largo plazo. El agua contaminada, en contacto con el n\u00facleo radiactivo, nunca se mezcla con el agua que hace mover las turbinas, a no ser que ocurra un accidente. En ese caso, a pesar de las medidas previstas para estas contingencias, m\u00e1s de una vez la realidad se ha ido por encima de las previsiones.<\/p>\n<p>Despu\u00e9s que se interrumpe la reacci\u00f3n para detener la central, el problema m\u00e1s importante es enfriar el n\u00facleo a alta temperatura sin que cause da\u00f1os. Para lograrlo se debe garantizar el suministro el\u00e9ctrico a las bombas de agua y otros equipos auxiliares de enfriamiento.<\/p>\n<p>Incluso si el suministro el\u00e9ctrico falla, existen sistemas alternativos, usualmente generadores diesel, para proveer la electricidad necesaria.<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-229314 alignright\" src=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/Hombre-explosion-nuclear-guerra-Pixabay.jpg\" alt=\"\" width=\"472\" height=\"324\" srcset=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/Hombre-explosion-nuclear-guerra-Pixabay.jpg 960w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/Hombre-explosion-nuclear-guerra-Pixabay-291x200.jpg 291w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/Hombre-explosion-nuclear-guerra-Pixabay-80x55.jpg 80w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/Hombre-explosion-nuclear-guerra-Pixabay-650x446.jpg 650w\" sizes=\"auto, (max-width: 472px) 100vw, 472px\" \/><\/strong>Pero en la pr\u00e1ctica, en un accidente m\u00faltiple como el de Fukushima (terremoto + tsunami) todos los sistemas fallaron; no se pudo enfriar a tiempo el n\u00facleo del reactor, la presi\u00f3n del vapor aument\u00f3 sobre lo previsto, hubo explosiones y el vapor contaminado y otras sustancias radiactivas escaparon al exterior.<\/p>\n<p>Se prev\u00e9n nuevos dise\u00f1os de seguridad que, en caso de accidente, garanticen el enfriamiento del n\u00facleo sin usar electricidad y sin operarios, mediante flujo de agua por gravedad. No obstante, el riesgo nunca podr\u00e1 reducirse a cero.<\/p>\n<p><strong>Energ\u00eda renovable <\/strong><\/p>\n<p>La opci\u00f3n es la energ\u00eda limpia y renovable proveniente de celdas solares, olas y mareas, pilas de combustible o molinos de viento, pues no todos tienen la opci\u00f3n de la energ\u00eda hidr\u00e1ulica o geot\u00e9rmica.<\/p>\n<p>Por el momento esta energ\u00eda s\u00f3lo alcanza para cubrir una \u00ednfima parte de las necesidades energ\u00e9ticas. Otras fuentes renovables en pleno desarrollo, como la bionerg\u00eda proveniente del etanol extra\u00eddo del ma\u00edz o de la ca\u00f1a de az\u00facar, han sido muy criticadas.<\/p>\n<p>La bionerg\u00eda no causa incrementos del CO2 en la atm\u00f3sfera, pues en cada cosecha se reabsorbe el que fue generado al quemar la cosecha anterior.<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-229561\" src=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/mascara-nuclear-virus-guerra-Pixabay.jpg\" alt=\"\" width=\"472\" height=\"314\" srcset=\"https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/mascara-nuclear-virus-guerra-Pixabay.jpg 922w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/mascara-nuclear-virus-guerra-Pixabay-300x200.jpg 300w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/mascara-nuclear-virus-guerra-Pixabay-82x55.jpg 82w, https:\/\/theprisma.co.uk\/wp-content\/uploads\/2022\/03\/mascara-nuclear-virus-guerra-Pixabay-650x434.jpg 650w\" sizes=\"auto, (max-width: 472px) 100vw, 472px\" \/><\/strong>Pero al emplear tierras de cultivo para obtener combustible, su implementaci\u00f3n masiva podr\u00eda contribuir a incrementar la escasez de alimentos en muchos lugares del mundo y promover el hambre.<\/p>\n<p>Obviamente, el problema energ\u00e9tico presenta muchos matices, y constituye una seria disyuntiva para el futuro inmediato, mas a\u00fan para los pa\u00edses que cuentan con fuentes muy limitadas. (PL)<\/p>\n<p><em><span style=\"color: #003366;\">(Fotos: Pixabay)<\/span><\/em><\/p>\n<div class=\"twttr_buttons\"><div class=\"twttr_twitter\">\n\t\t\t\t\t<a href=\"http:\/\/twitter.com\/share?text=El+dilema+energ%C3%A9tico%3A+seguridad+y+sostenibilidad\" class=\"twitter-share-button\" data-via=\"\" data-hashtags=\"\"  data-size=\"default\" data-url=\"https:\/\/theprisma.co.uk\/es\/2026\/03\/30\/el-dilema-energetico-seguridad-y-sostenibilidad\/\" data-dnt=\"true\" data-related=\"\" target=\"_blank\">Tweet<\/a>\n\t\t\t\t<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Entre los peligros de accidentes nucleares y las limitaciones de las energ\u00edas renovables, los pa\u00edses enfrentan decisiones complejas para garantizar electricidad limpia y segura. La discusi\u00f3n sobre eficiencia, riesgo ambiental y disponibilidad de recursos marca el futuro del suministro energ\u00e9tico mundial. &nbsp; Arnaldo Gonz\u00e1lez Arias &nbsp; Las termoel\u00e9ctricas emiten CO2, [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":229565,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,14,7],"tags":[],"class_list":["post-278982","post","type-post","status-publish","format-standard","has-post-thumbnail","category-okologie","category-en-foco","category-opinion"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>El dilema energ\u00e9tico: seguridad y sostenibilidad - ThePrisma.co.uk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/theprisma.co.uk\/es\/2026\/03\/30\/el-dilema-energetico-seguridad-y-sostenibilidad\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"El dilema energ\u00e9tico: seguridad y sostenibilidad\" \/>\n<meta property=\"og:description\" content=\"Entre los peligros de accidentes nucleares y las limitaciones de las energ\u00edas renovables, los pa\u00edses enfrentan decisiones complejas para garantizar electricidad limpia y segura. 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