{"id":20464,"date":"2025-11-27T16:27:31","date_gmt":"2025-11-27T15:27:31","guid":{"rendered":"https:\/\/ganaenergia.com\/blog\/?p=20464"},"modified":"2026-08-06T10:12:43","modified_gmt":"2026-08-06T08:12:43","slug":"como-se-fija-el-precio-del-kwh","status":"publish","type":"post","link":"https:\/\/ganaenergia.com\/blog\/como-se-fija-el-precio-del-kwh\/","title":{"rendered":"\u00bfC\u00f3mo se fija el precio del kWh? Explicado f\u00e1cil (de verdad)"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">\u00bfAlguna vez te has preguntado c\u00f3mo se fija el precio del kWh?<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> S\u00ed, esa cifra que ves en tu factura y que determina gran parte de lo que pagas cada mes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pues bien: <\/span><b>ese n\u00famero no lo \u201cinventa\u201d tu compa\u00f1\u00eda<\/b><span style=\"font-weight: 400;\">. Viene de un proceso mucho m\u00e1s largo que empieza antes incluso de que t\u00fa enciendas una luz.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Aqu\u00ed te lo explico paso a paso y sin l\u00edos.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\u00bfC\u00f3mo se fija exactamente el precio del kWh?<\/span><\/h2>\n<p>Antes de llegar a tu factura, el precio del kWh se define en lo que se conoce como mercado mayorista el\u00e9ctrico (OMIE).<br \/>\nEs una especie de \u201clonja\u201d donde la electricidad se compra y se vende cada d\u00eda para el d\u00eda siguiente y para cada hora.<\/p>\n<h3><span style=\"font-weight: 400;\">\u00bfQu\u00e9 pasa ah\u00ed dentro?<\/span><\/h3>\n<ol>\n<li>Los productores dicen cu\u00e1nta energ\u00eda pueden generar y a qu\u00e9 precio.<\/li>\n<li>Las comercializadoras (las compa\u00f1\u00edas que te vendemos la energ\u00eda) dicen cu\u00e1nta energ\u00eda necesitan.<\/li>\n<li>OMIE cruza oferta y demanda para cada hora.<\/li>\n<\/ol>\n<p>La \u00faltima tecnolog\u00eda necesaria para cubrir la demanda marca el precio marginal, que es el precio mayorista por esa hora.<br \/>\nEse precio se publica diariamente y es la \u201cmateria prima\u201d del precio que te acaba llegando en tu factura.<br \/>\nPuedes consultar el resultado de esa subasta diaria en la web de <a href=\"https:\/\/www.omie.es\/\">OMIE.<\/a><\/p>\n<h2><span style=\"font-weight: 400;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-20465\" src=\"https:\/\/ganaenergia.com\/blog\/wp-content\/uploads\/2025\/11\/como-se-fija-el-precio-del-kWh.png\" alt=\"\" width=\"800\" height=\"534\" srcset=\"https:\/\/ganaenergia.com\/blog\/wp-content\/uploads\/2025\/11\/como-se-fija-el-precio-del-kWh.png 800w, https:\/\/ganaenergia.com\/blog\/wp-content\/uploads\/2025\/11\/como-se-fija-el-precio-del-kWh-300x200.png 300w, https:\/\/ganaenergia.com\/blog\/wp-content\/uploads\/2025\/11\/como-se-fija-el-precio-del-kWh-768x513.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/span><\/h2>\n<h2><span style=\"font-weight: 400;\">P<\/span><span style=\"font-weight: 400;\">ero en tu factura no aparece ese precio\u2026 \u00bfqu\u00e9 pasa despu\u00e9s?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">El precio del mercado mayorista <\/span><b>no es directamente<\/b><span style=\"font-weight: 400;\"> el que t\u00fa pagas. A ese precio se le suman otros conceptos regulados y el margen comercial.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Componente del precio final<\/b><\/td>\n<td><b>\u00bfQui\u00e9n lo fija?<\/b><\/td>\n<td><b>\u00bfQu\u00e9 significa?<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Precio mayorista<\/b><\/td>\n<td><span style=\"font-weight: 400;\">OMIE<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Base del coste de la energ\u00eda.<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Peajes de transporte y distribuci\u00f3n<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Gobierno<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Costes de llevar la luz a tu casa.<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Cargos del sistema<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Gobierno<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Costes regulados (mantenimiento, pagos al sistema).<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Margen de comercializadora<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Cada compa\u00f1\u00eda<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Su beneficio y gesti\u00f3n.<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Impuestos<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Gobierno<\/span><\/td>\n<td><span style=\"font-weight: 400;\">IVA + <a href=\"https:\/\/ganaenergia.com\/blog\/impuesto-electrico-factura\/\" target=\"_blank\">Impuesto el\u00e9ctrico<\/a>.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Tu compa\u00f1\u00eda <\/span><b>no puede cambiar<\/b><span style=\"font-weight: 400;\"> el precio del mercado mayorista ni los peajes ni los impuestos. Pero s\u00ed cambia <\/span><b>el margen<\/b><span style=\"font-weight: 400;\"> que aplica y <\/span><b>el tipo de tarifa<\/b><span style=\"font-weight: 400;\"> con la que te ofrece la energ\u00eda.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ah\u00ed es donde aparece la diferencia real entre compa\u00f1\u00edas.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En Gana Energ\u00eda trabajamos con <\/span><b>precios ajustados y claros<\/b><span style=\"font-weight: 400;\">, sin a\u00f1adidos innecesarios, para que consigas el mayor ahorro posible.\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\u00bfC\u00f3mo influye tu tarifa en el precio del kWh?\u00a0<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">El precio del kWh que ves en tu factura depende <\/span><b>directamente<\/b><span style=\"font-weight: 400;\"> del tipo de tarifa que tengas.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Esto es lo que de verdad explica por qu\u00e9 tu vecino paga distinto aunque viva en tu edificio.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Tarifa indexada (al precio del mercado mayorista)<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Es el caso de nuestra <\/span><a href=\"https:\/\/ganaenergia.com\/tarifas-luz\/precio-mercado\"><span style=\"font-weight: 400;\">Tarifa Precio de Mercado<\/span><\/a><span style=\"font-weight: 400;\">. Pagas la energ\u00eda <\/span><b>al precio real del mercado + margen<\/b><span style=\"font-weight: 400;\">. Ese precio cambia <\/span><b>cada d\u00eda<\/b><span style=\"font-weight: 400;\"> y <\/span><b>cada hora<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cuando el mercado sube o baja, <\/span><b>t\u00fa lo notas directamente<\/b><span style=\"font-weight: 400;\"> en tu factura de luz.\u00a0<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">Tarifa de luz fija (precio estable)<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">En ellas pagas <\/span><b>siempre el mismo precio por kWh<\/b><span style=\"font-weight: 400;\">, durante el periodo contratado (normalmente 12 meses).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Es decir: pagas un margen mayor a modo de \u201cseguro\u201d que hace que aunque el mercado suba o baje, t\u00fa mantienes un precio estable.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Hablamos, en este caso, de nuestra <\/span><a href=\"https:\/\/ganaenergia.com\/tarifas-luz\/24-horas\"><span style=\"font-weight: 400;\">Tarifa 24 Horas<\/span><\/a><span style=\"font-weight: 400;\"> y la <\/span><a href=\"https:\/\/ganaenergia.com\/tarifas-luz\/tramos-horarios\"><span style=\"font-weight: 400;\">Tarifa Tramos Horarios.\u00a0<\/span><\/a><\/p>\n<p><span style=\"font-weight: 400;\">\u00bfC\u00f3mo podemos mantener ese precio si en el mercado cambia cada hora? Porque <\/span><b>compramos la energ\u00eda con antelaci\u00f3n<\/b><span style=\"font-weight: 400;\">, planificamos y te trasladamos un precio en el que ya est\u00e1 incluido el margen comercial.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Preguntas frecuentas sobre la fijaci\u00f3n del precio del kWh<\/span><\/h2>\n<div class=\"faq-elementor\"><details class=\"faq-item\"><summary class=\"faq-summary\"><span class=\"faq-question\">\u00bfTodas las compa\u00f1\u00edas tienen el mismo precio mayorista?<\/span><span class=\"faq-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                    width=\"24\"\n                    height=\"24\"\n                    viewBox=\"0 0 24 24\"\n                    fill=\"none\"><path d=\"M12.1054 5.25L12.1055 12.25M12.1055 12.25L5.10547 12.25M12.1055 12.25L12.1055 19.2499M12.1055 12.25L19.1055 12.25\"\n                    stroke=\"#353646\"\n                    stroke-width=\"1.5\"\n                    stroke-linecap=\"round\"\n                    stroke-linejoin=\"round\"\/><\/svg><\/span><\/summary><div class=\"faq-answer\">S\u00ed. Todas compran en el mismo mercado. Lo que cambia son sus m\u00e1rgenes, sus tarifas y c\u00f3mo gestionan el riesgo.<\/div><\/details><details class=\"faq-item\"><summary class=\"faq-summary\"><span class=\"faq-question\">\u00bfPor qu\u00e9 cambia entonces el precio del kWh entre compa\u00f1\u00edas?<\/span><span class=\"faq-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                    width=\"24\"\n                    height=\"24\"\n                    viewBox=\"0 0 24 24\"\n                    fill=\"none\"><path d=\"M12.1054 5.25L12.1055 12.25M12.1055 12.25L5.10547 12.25M12.1055 12.25L12.1055 19.2499M12.1055 12.25L19.1055 12.25\"\n                    stroke=\"#353646\"\n                    stroke-width=\"1.5\"\n                    stroke-linecap=\"round\"\n                    stroke-linejoin=\"round\"\/><\/svg><\/span><\/summary><div class=\"faq-answer\">Porque aunque todas parten del mismo precio mayorista y de los mismos peajes e impuestos, cada compa\u00f1\u00eda aplica un margen distinto y ofrece tipos de tarifa diferentes. Ah\u00ed es donde aparece la diferencia real. En Gana Energ\u00eda trabajamos con tarifas claras y precios ajustados, sin a\u00f1adidos innecesarios. <\/div><\/details><details class=\"faq-item\"><summary class=\"faq-summary\"><span class=\"faq-question\">Entonces, \u00bfmi compa\u00f1\u00eda fija \u201csu\u201d precio del kWh?<\/span><span class=\"faq-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                    width=\"24\"\n                    height=\"24\"\n                    viewBox=\"0 0 24 24\"\n                    fill=\"none\"><path d=\"M12.1054 5.25L12.1055 12.25M12.1055 12.25L5.10547 12.25M12.1055 12.25L12.1055 19.2499M12.1055 12.25L19.1055 12.25\"\n                    stroke=\"#353646\"\n                    stroke-width=\"1.5\"\n                    stroke-linecap=\"round\"\n                    stroke-linejoin=\"round\"\/><\/svg><\/span><\/summary><div class=\"faq-answer\">S\u00ed, si tienes tarifa fija. Y ese precio depende de su pol\u00edtica comercial. <\/div><\/details><details class=\"faq-item\"><summary class=\"faq-summary\"><span class=\"faq-question\">\u00bfEs mejor una tarifa fija o indexada?<\/span><span class=\"faq-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                    width=\"24\"\n                    height=\"24\"\n                    viewBox=\"0 0 24 24\"\n                    fill=\"none\"><path d=\"M12.1054 5.25L12.1055 12.25M12.1055 12.25L5.10547 12.25M12.1055 12.25L12.1055 19.2499M12.1055 12.25L19.1055 12.25\"\n                    stroke=\"#353646\"\n                    stroke-width=\"1.5\"\n                    stroke-linecap=\"round\"\n                    stroke-linejoin=\"round\"\/><\/svg><\/span><\/summary><div class=\"faq-answer\">Depende de ti: Fija \u2192 estabilidad y control a cambio de pagar un margen extra en cada kWh Indexada \u2192 transparencia y mayor ahorro anual, pero m\u00e1s volatilidad. <\/div><\/details><details class=\"faq-item\"><summary class=\"faq-summary\"><span class=\"faq-question\">\u00bfPor qu\u00e9 el mercado mayorista afecta tanto?<\/span><span class=\"faq-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                    width=\"24\"\n                    height=\"24\"\n                    viewBox=\"0 0 24 24\"\n                    fill=\"none\"><path d=\"M12.1054 5.25L12.1055 12.25M12.1055 12.25L5.10547 12.25M12.1055 12.25L12.1055 19.2499M12.1055 12.25L19.1055 12.25\"\n                    stroke=\"#353646\"\n                    stroke-width=\"1.5\"\n                    stroke-linecap=\"round\"\n                    stroke-linejoin=\"round\"\/><\/svg><\/span><\/summary><div class=\"faq-answer\">Porque es la \u201cmateria prima\u201d del precio final. En una tarifa de luz indexada, lo notas de inmediato. En una tarifa fija, influye a medio plazo (cuando se revisa el precio anual). <\/div><\/details><\/div><br\/>\n<h2><span style=\"font-weight: 400;\">Conclusi\u00f3n: ahora ya sabes de d\u00f3nde sale el precio del kWh<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">El n\u00famero que ves en tu factura no aparece por arte de magia.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Viene de un mercado donde se compra la electricidad hora a hora, y despu\u00e9s se transforma seg\u00fan: el tipo de tarifa que tienes, el margen de la compa\u00f1\u00eda, y los costes regulados del sistema.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Si quieres algo claro y ajustado, en Gana Energ\u00eda trabajamos con tarifas de luz y gas dise\u00f1adas para ayudarte a ahorrar.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00bfQu\u00e9 te recomiendo ahora? Echar un vistazo a nuestro <\/span><a href=\"https:\/\/ganaenergia.com\/comparativa-luz\"><span style=\"font-weight: 400;\">comparador de la factura<\/span><\/a><span style=\"font-weight: 400;\"> para ver si tienes un buen precio.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tambi\u00e9n puedes llamarnos al <\/span><a href=\"tel:960202543\"><b>960 202 543<\/b><\/a><span style=\"font-weight: 400;\">, revisamos tu factura <\/span><b>gratis y sin compromiso<\/b><span style=\"font-weight: 400;\"> para decirte cu\u00e1nto ahorrar\u00edas al cambiarte con Gana Energ\u00eda.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;20464&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;2&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Punt\u00faa este Post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (2 votos)&quot;,&quot;size&quot;:&quot;20&quot;,&quot;title&quot;:&quot;\u00bfC\u00f3mo se fija el precio del kWh? Explicado f\u00e1cil (de verdad)&quot;,&quot;width&quot;:&quot;122.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 122.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 20px; height: 20px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 16px;\">\n            5\/5 - (2 votos)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00bfAlguna vez te has preguntado c\u00f3mo se fija el precio del kWh? Pues bien: ese n\u00famero no lo \u201cinventa\u201d tu compa\u00f1\u00eda. Viene de un proceso mucho m\u00e1s largo que empieza antes incluso de que t\u00fa enciendas una luz.<\/p>\n","protected":false},"author":28,"featured_media":20469,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[875],"tags":[748],"class_list":["post-20464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-luz","tag-como-se-fija-el-precio-del-kwh"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>C\u00f3mo se fija el precio del kWh en Espa\u00f1a: explicaci\u00f3n f\u00e1cil<\/title>\n<meta name=\"description\" content=\"Descubre c\u00f3mo se fija el precio, de d\u00f3nde sale el valor de tu factura y c\u00f3mo influye tu tarifa. 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