{"id":8499,"date":"2025-10-29T12:31:56","date_gmt":"2025-10-29T11:31:56","guid":{"rendered":"https:\/\/goodnewenergy.enagas.es\/uncategorized\/how-to-classify-the-new-types-of-hydrogen\/"},"modified":"2025-10-29T12:33:28","modified_gmt":"2025-10-29T11:33:28","slug":"classification-types-hydrogen","status":"publish","type":"post","link":"https:\/\/goodnewenergy.enagas.es\/en\/innovative\/classification-types-hydrogen\/","title":{"rendered":"How to classify the new types of hydrogen"},"content":{"rendered":"<p>The European Union has established\u00a0<strong>a new classification for the different types of hydrogen<\/strong> to replace the traditional colour system, focusing on technical and regulatory criteria. The aim is to\u00a0<strong>guarantee clear traceability\u00a0<\/strong>and prevent confusion regarding the true environmental impact of each form of production.<\/p>\n<p>In this article we review the\u00a0<strong>five recognised types of hydrogen<\/strong>, together with their characteristics, legal requirements and significance for the future of energy.<\/p>\n<h2><strong>The reasons for a new hydrogen classification<\/strong><\/h2>\n<p>Until recently, it was common to use a\u00a0<strong>colour-based <\/strong>system\u00a0<strong>to distinguish between the different types of hydrogen<\/strong>: \u201cgreen\u201d for renewable, \u201cgrey\u201d for fossil, \u201cblue\u201d for any produced with CO\u2082 capture, etc.<\/p>\n<p>While it was useful as a simplified explanation, the system posed three challenges:<\/p>\n<ul>\n<li>It didn\u2019t reflect the production conditions or the actual level of emissions in any great detail.<\/li>\n<li>There was no single consensus, and a single colour could have different meanings in different countries.<\/li>\n<li>The European Union needed verifiable regulatory criteria to implement its decarbonisation policies and allocate incentives.<\/li>\n<\/ul>\n<p>The new classification is therefore based on\u00a0<strong>regulated typologies that are linked to measurable parameters<\/strong>, such as the origin of the energy, the feedstock used and the cuts in emissions that are achieved.<\/p>\n<div class=\"su-youtube su-u-responsive-media-yes\"><iframe loading=\"lazy\" width=\"600\" height=\"400\" src=\"https:\/\/www.youtube.com\/embed\/MsMhDG3Vs8U?\" frameborder=\"0\" allowfullscreen allow=\"autoplay; encrypted-media; picture-in-picture\" title=\"\"><\/iframe><\/div>\n<h2><strong>The five types of hydrogen, according to the EU<\/strong><\/h2>\n<p>The current European regulation stipulates\u00a0<strong>five broad categories of hydrogen<\/strong>. They are each in keeping with a different production model and they have different implications for the market and sustainability.<\/p>\n<h3><strong>1. Renewable non-biological hydrogen (RFNBO)<\/strong><\/h3>\n<p>This is the strictest category and it sets the standard for sustainability within the European Union. Its main feature is its <strong>production by means of<\/strong> <strong>water electrolysis<\/strong>, using electricity taken from renewable sources such as solar and wind.<\/p>\n<p>Furthermore, it is regulated by\u00a0<strong>Delegated Regulations (EU) 2023\/1184 and 2023\/1185<\/strong>, two highly important standards when it comes to clarifying what can be regarded as truly renewable hydrogen.<\/p>\n<p>The first is Delegated Regulation (EU) 2023\/1184. This standard lists the conditions the electricity used in hydrogen production must meet in order for it to be considered renewable. It isn\u2019t enough for it to come from solar panels or windmills:\u00a0<strong>it has to be electricity produced by new plants<\/strong>\u00a0(what\u2019s known as additionality) in the same place and at the same time as it is used in the electrolysis (temporal and geographical correlation), and it has to be reliably demonstrated and documented that the energy is renewable.<\/p>\n<p>The second regulation is Delegated Regulation (EU) 2023\/1185, which goes a step further. It establishes that, for it to be accepted as renewable hydrogen or recycled carbon fuel,\u00a0<strong>the production process must reduce the greenhouse gas emissions by at least 70%<\/strong>\u00a0with respect to a fossil fuel. To verify the above, the standard includes a calculation methodology based on the hydrogen\u2019s entire life cycle, from the feedstock to the end use.<\/p>\n<h3><strong>2. Bio-based renewable hydrogen<\/strong><\/h3>\n<p>Bio-based hydrogen is <strong>produced using biomass or biogenic waste by means of sustainable processes<\/strong>, in other words, ones that meet the sustainability and greenhouse gas emission reduction criteria set out in Directive (EU) 2018\/2001 (RED II) and its updates. This includes hydrogen from biogas reforming or biomass gasification, provided that the feedstocks are sustainable.<\/p>\n<p>Its main benefit is its\u00a0<strong>capacity to recover organic waste and by-products of agricultural, forestry and industrial origin, reducing the environmental impact associated with waste management<\/strong>, particularly methane emissions resulting from its decomposition.<\/p>\n<h3><strong>3. Hypocarbon hydrogen<\/strong><\/h3>\n<p>This refers to hydrogen produced\u00a0<strong>using non-renewable sources<\/strong> which nevertheless leads to significant emission reductions. The main condition is that it must guarantee at least 70% lower GHG emissions than conventional fossil hydrogen.<\/p>\n<p>For example, this kind of hydrogen is produced by means of nuclear-powered electrolysis or natural gas reforming accompanied by CO\u2082 capture and storage systems.<\/p>\n<p>It may be a transitional option in countries with access to nuclear or natural gas, provided that the emission reduction threshold is met.<\/p>\n<h3><strong>4. Renewable hydrogen (Non-RFNBO)<\/strong><\/h3>\n<p>This category includes hydrogen produced\u00a0<strong>using renewable sources without meeting one or more of the RFNBO requirements<\/strong>.<\/p>\n<p>Differences with respect to RFNBO:<\/p>\n<ul>\n<li>It can use existing renewable electricity.<\/li>\n<li>It doesn\u2019t necessarily guarantee a temporal or geographical correlation with the energy source.<\/li>\n<li>It may not achieve the 70% emission reduction required for the RFNBO.<\/li>\n<\/ul>\n<p>One example is hydrogen produced by means of electrolysis connected to the existing renewable electricity grid without demonstrating any additionality.<\/p>\n<p>Although its conditions are less stringent, this type of hydrogen remains relevant as a transitional pathway, and it can contribute to decarbonisation in countries in which the regulatory conditions are still under development.<\/p>\n<h3><strong>\u00a0<\/strong><strong>5. Fossil hydrogen<\/strong><\/h3>\n<p>As for fossil hydrogen, it is produced\u00a0<strong>using non-renewable fuels<\/strong>\u00a0such as natural gas, coal and oil. The most common process is the steam reforming of natural gas, during which the methane reacts with water to generate hydrogen and CO\u2082.<\/p>\n<p>Fossil hydrogen therefore\u00a0<strong>fails to meet the rule for a 70% emission reduction<\/strong>\u00a0compared to traditional fuels, which is the criterion for it to be regarded as \u201cclean\u201d. Although there exist\u00a0<a href=\"https:\/\/goodnewenergy.enagas.es\/sostenibles\/ccus-futuro-sostenible\/\">carbon capture<\/a>variants, most of the production continues to be emission-intensive, unlike\u00a0<a href=\"https:\/\/goodnewenergy.enagas.es\/sostenibles\/hidrogeno-verde-preguntas-respuestas\/\">green hydrogen<\/a>, which is produced with water using renewable energy, without generating any CO\u2082.<\/p>\n<h2><strong>Certification: a key component of the hydrogen market<\/strong><\/h2>\n<p>Classification alone is not enough. For hydrogen to be officially recognised as RFNBO, renewable, low-carbon or in any other category,\u00a0<strong>certification and traceability systems must be in place.<\/strong><\/p>\n<p>Certification is essential because:<\/p>\n<ul>\n<li>It guarantees compliance with legal and environmental requirements<\/li>\n<li>It allows access to subsidies, grants and support programmes reserved for renewable hydrogen<\/li>\n<li>It facilitates integration into the European hydrogen market, which requires common standards for marketing and transport<\/li>\n<li>It bolsters investor and consumer confidence<\/li>\n<\/ul>\n<h2><strong>A classification for a more transparent market<\/strong><\/h2>\n<p>This classification of types of hydrogen constitutes a decisive step towards building a sustainable and credible energy market. The European Union will thus ensure that hydrogen investments are geared towards\u00a0<strong>solutions that actually cut emissions and add value to the energy transition<\/strong>.<\/p>\n<p>Within this context, certification will be the key tool that determines which projects prosper and which ones are excluded. Understanding and applying this classification will be a prerequisite for companies, investors and consumers wishing to form part of Europe\u2019s energy future.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discover the new European classification of hydrogen types, which replaces the old colour-coded system. The European Union distinguishes five categories: renewable hydrogen (RFNBO), bio-based, low-carbon, recycled carbon and fossil-based, based on their production method, emission reduction and traceability. Certification and transparency are key to building a clean, competitive energy market that is aligned with Europe&#8217;s climate goals.<\/p>\n","protected":false},"author":18,"featured_media":8448,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-8499","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innovative"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Classification of hydrogen types - Good New Energy<\/title>\n<meta name=\"description\" content=\"Discover the European Union&#039;s new classification of hydrogen types, focused on technical and regulatory criteria. 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