{"id":6577,"date":"2024-11-29T10:08:58","date_gmt":"2024-11-29T09:08:58","guid":{"rendered":"https:\/\/blog.structuralia.com\/uncategorized\/calificacion-energetica-g-0\/"},"modified":"2026-03-27T13:52:38","modified_gmt":"2026-03-27T12:52:38","slug":"calificacion-energetica-g-0","status":"publish","type":"post","link":"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0","title":{"rendered":"How Each Air-Source Heat Pump System Works and What Their Characteristics Are"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\"><\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0\/#Calificacion_energetica\" >Energy Rating<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0\/#Consecuencias_de_una_calificacion_energetica_G\" >Consequences of a G energy rating<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0\/#Como_mejorar_una_categoria_G\" >How to Improve a G Category<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0\/#Mejoras_de_los_sistemas_pasivos\" >Improvements to Passive Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0\/#Mejoras_de_sistemas_activos\" >Active System Improvements<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>In the wake of the global energy crisis, the European Union began taking action in 2002 with the <i>Directive on Energy Efficiency in Buildings<\/i>. One of the best-known directives in this area, as it introduces the concept of energy performance certification for buildings. <strong>Energy efficiency class G<\/strong> It is the lowest on this scale, which means it is the least efficient; A, on the other hand, is at the top of the list and represents the highest efficiency.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Calificacion_energetica\"><\/span>Energy Rating<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Directive 2002\/91\/EC introduces the concept of energy certification for buildings as an activity that <strong>must be performed by a licensed professional<\/strong> specifically for this purpose, in accordance with each member state\u2019s criteria. Subsequent updates to European regulations have introduced mandatory certification and rating requirements for buildings that are constructed, sold, or rented.<\/p>\n<p>To rate a property on this scale, several indicators must be considered that allow for the assessment of good or poor energy performance. These indicators are calculated on an annual basis and based on the property\u2019s usable floor area, and they provide information on the amount of energy required to meet, under specific climatic conditions, the conditions of <i>comfort <\/i>considered normal; this includes: heating, cooling, ventilation, domestic hot water, and lighting in certain cases.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Consecuencias_de_una_calificacion_energetica_G\"><\/span>Consequences of a G energy rating<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Since 2013, it has been mandatory to submit the <strong>Energy Certification for Buildings<\/strong>, the purchase, sale, or rental of a property. If a property is rated as energy efficiency class G, this means that it consumes a large amount of energy annually just to maintain minimal comfort levels\u2014well above the national average. In terms of a household\u2019s budget, this translates to higher costs for electricity, water, and gas.<\/p>\n<p>According to studies conducted by <i>Certicalia, <\/i>annually <strong>A Category G home can result in a difference of more than about 1,175 euros per year<\/strong>, in heating, cooling, and hot water, compared to the same home classified as Category C. It\u2019s not an amount to be taken lightly, but it\u2019s not the only consequence; an energy-efficient home is one that, thanks to its insulation properties, better withstands the cold of winter and the heat of summer; it has good natural ventilation and allows residents to enjoy the breeze; it does not experience temperature spikes in certain rooms; in short, it improves the quality of life for its residents.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Como_mejorar_una_categoria_G\"><\/span>How to Improve a G Category<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The way to improve the energy efficiency of a home or building is through renovations that optimize the <strong>passive systems<\/strong>, which improve efficiency without consuming any energy whatsoever, and <strong>assets<\/strong>, which are the ones that actually consume energy. It is usually necessary to carry out comprehensive renovations that address both types of <strong>systems designed to achieve a significant increase in efficiency<\/strong>, however, each case is unique, and the true scope of the intervention will be limited by its cost-benefit ratio.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mejoras_de_los_sistemas_pasivos\"><\/span>Improvements to Passive Systems<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The first step for this type of improvement is <strong>start with the windows<\/strong>, the most significant source of heat loss in a building or home, and they directly affect how easily a space can be heated or cooled using mechanical systems, thereby directly impacting annual energy costs for these purposes.<\/p>\n<p>Another passive improvement method is the installation of or <strong>improvement of the insulation material<\/strong> of walls that are in contact with the outside. Although this method yields better results, it is almost never possible to insulate from the outside, so the most common option is to add more insulation on the inside.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mejoras_de_sistemas_activos\"><\/span>Active System Improvements<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>As for active systems, the main problem has to do with the efficiency of the <strong>boilers<\/strong>, depending on their age, they consume a lot of energy to heat water; today, there is a huge difference in the amount of energy consumed by new boilers and the amount of CO2 they emit into the atmosphere, followed by the <strong>refrigeration systems<\/strong>, and in large buildings, the <strong>air exchange systems<\/strong>. Another type of active improvement is the implementation of energy-generation systems using renewable sources, such as the installation of <strong>solar panels<\/strong> solar panels to generate part of the electricity, and thermal systems to help heat domestic water.<\/p>\n<p>For those interested in this field, Structuralia has developed the Master\u2019s Degree in Building Renovation and Energy Efficiency, accredited by the Polytechnic University of Madrid, with the goal of training professionals to carry out engineering, consulting, and project management tasks in buildings in the areas of energy efficiency, energy system efficiency, and the integration of renewable energy sources to achieve more sustainable buildings.<\/p>","protected":false},"excerpt":{"rendered":"<p>A ra\u00edz de la crisis energ\u00e9tica mundial, la uni\u00f3n europea en 2002, comienza a tomar cartas en el asunto con la Directiva de eficiencia energ\u00e9tica en edificios. Una de las directivas m\u00e1s familiares en este aspecto, ya que introduce el concepto de la calificaci\u00f3n energ\u00e9tica de los inmuebles. La calificaci\u00f3n energ\u00e9tica G es la m\u00e1s [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":5402,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_ayudawp_aiss_exclude":false,"_ayudawp_aiss_summary":"","_ayudawp_aiss_summary_provider":"","_ayudawp_aiss_summary_hash":"","footnotes":""},"categories":[269],"tags":[],"class_list":["post-6577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energia-y-medioambiente"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Calificaci\u00f3n energ\u00e9tica G: qu\u00e9 significa y c\u00f3mo mejorarla<\/title>\n<meta name=\"description\" content=\"Conoce qu\u00e9 implica tener una calificaci\u00f3n energ\u00e9tica G, sus consecuencias legales y c\u00f3mo mejorar la eficiencia de una vivienda o edificio.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/posts\/6577\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calificaci\u00f3n energ\u00e9tica G: qu\u00e9 significa y c\u00f3mo mejorarla\" \/>\n<meta property=\"og:description\" content=\"Conoce qu\u00e9 implica tener una calificaci\u00f3n energ\u00e9tica G, sus consecuencias legales y c\u00f3mo mejorar la eficiencia de una vivienda o edificio.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog de Structuralia\" \/>\n<meta property=\"article:published_time\" content=\"2024-11-29T09:08:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-27T12:52:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2024\/11\/calificacion-energetica-g-0.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"427\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Equipo de redactores\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Equipo de redactores\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Calificaci\u00f3n energ\u00e9tica G: qu\u00e9 significa y c\u00f3mo mejorarla","description":"Conoce qu\u00e9 implica tener una calificaci\u00f3n energ\u00e9tica G, sus consecuencias legales y c\u00f3mo mejorar la eficiencia de una vivienda o edificio.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/posts\/6577","og_locale":"en_US","og_type":"article","og_title":"Calificaci\u00f3n energ\u00e9tica G: qu\u00e9 significa y c\u00f3mo mejorarla","og_description":"Conoce qu\u00e9 implica tener una calificaci\u00f3n energ\u00e9tica G, sus consecuencias legales y c\u00f3mo mejorar la eficiencia de una vivienda o edificio.","og_url":"https:\/\/blog.structuralia.com\/en\/calificacion-energetica-g-0\/","og_site_name":"Blog de Structuralia","article_published_time":"2024-11-29T09:08:58+00:00","article_modified_time":"2026-03-27T12:52:38+00:00","og_image":[{"width":640,"height":427,"url":"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2024\/11\/calificacion-energetica-g-0.jpg","type":"image\/jpeg"}],"author":"Equipo de redactores","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Equipo de redactores","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#article","isPartOf":{"@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0"},"author":{"name":"Equipo de redactores","@id":"https:\/\/blog.structuralia.com\/#\/schema\/person\/87ddd066f2b0e01e832284f797138b7b"},"headline":"C\u00f3mo funciona cada esquema de aerotermia y cu\u00e1les son sus caracter\u00edsticas","datePublished":"2024-11-29T09:08:58+00:00","dateModified":"2026-03-27T12:52:38+00:00","mainEntityOfPage":{"@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0"},"wordCount":901,"commentCount":0,"publisher":{"@id":"https:\/\/blog.structuralia.com\/#organization"},"image":{"@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#primaryimage"},"thumbnailUrl":"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2024\/11\/calificacion-energetica-g-0.jpg","articleSection":["Energ\u00eda y medioambiente"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#respond"]}]},{"@type":"WebPage","@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0","url":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0","name":"Calificaci\u00f3n energ\u00e9tica G: qu\u00e9 significa y c\u00f3mo mejorarla","isPartOf":{"@id":"https:\/\/blog.structuralia.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#primaryimage"},"image":{"@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#primaryimage"},"thumbnailUrl":"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2024\/11\/calificacion-energetica-g-0.jpg","datePublished":"2024-11-29T09:08:58+00:00","dateModified":"2026-03-27T12:52:38+00:00","description":"Conoce qu\u00e9 implica tener una calificaci\u00f3n energ\u00e9tica G, sus consecuencias legales y c\u00f3mo mejorar la eficiencia de una vivienda o edificio.","breadcrumb":{"@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blog.structuralia.com\/calificacion-energetica-g-0"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#primaryimage","url":"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2024\/11\/calificacion-energetica-g-0.jpg","contentUrl":"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2024\/11\/calificacion-energetica-g-0.jpg","width":640,"height":427},{"@type":"BreadcrumbList","@id":"https:\/\/blog.structuralia.com\/calificacion-energetica-g-0#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Inicio","item":"https:\/\/blog.structuralia.com"},{"@type":"ListItem","position":2,"name":"Energ\u00eda y medioambiente","item":"https:\/\/blog.structuralia.com\/energia-y-medioambiente"},{"@type":"ListItem","position":3,"name":"C\u00f3mo funciona cada esquema de aerotermia y cu\u00e1les son sus caracter\u00edsticas"}]},{"@type":"WebSite","@id":"https:\/\/blog.structuralia.com\/#website","url":"https:\/\/blog.structuralia.com\/","name":"Structuralia's Official Blog","description":"On our blog, we create specialized content to keep you up to date on all the latest news, trends, and tips related to engineering.","publisher":{"@id":"https:\/\/blog.structuralia.com\/#organization"},"alternateName":"STRUCTURALIA","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blog.structuralia.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/blog.structuralia.com\/#organization","name":"Structuralia Blog","url":"https:\/\/blog.structuralia.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/blog.structuralia.com\/#\/schema\/logo\/image\/","url":"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2026\/01\/logo.svg","contentUrl":"https:\/\/blog.structuralia.com\/wp-content\/uploads\/2026\/01\/logo.svg","width":36,"height":38,"caption":"Blog de Structuralia"},"image":{"@id":"https:\/\/blog.structuralia.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/blog.structuralia.com\/#\/schema\/person\/87ddd066f2b0e01e832284f797138b7b","name":"Editorial Team","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/6047234e84771ae0815c2fc62265d85296754868378b6dd88865366408801df4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/6047234e84771ae0815c2fc62265d85296754868378b6dd88865366408801df4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6047234e84771ae0815c2fc62265d85296754868378b6dd88865366408801df4?s=96&d=mm&r=g","caption":"Equipo de redactores"},"url":"https:\/\/blog.structuralia.com\/en\/autor\/equipo-de-redactores"}]}},"views":300,"_links":{"self":[{"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/posts\/6577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/comments?post=6577"}],"version-history":[{"count":0,"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/posts\/6577\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/media\/5402"}],"wp:attachment":[{"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/media?parent=6577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/categories?post=6577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.structuralia.com\/en\/wp-json\/wp\/v2\/tags?post=6577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}