{"id":1145,"date":"2026-09-19T21:43:26","date_gmt":"2026-09-19T21:43:26","guid":{"rendered":"https:\/\/therailchannel.com\/?p=1145"},"modified":"2026-09-19T21:43:26","modified_gmt":"2026-09-19T21:43:26","slug":"alstom-and-partners-pioneer-world-first-hydrogen-converted-shunting-locomotive-in-salzgitter","status":"publish","type":"post","link":"https:\/\/therailchannel.com\/?p=1145","title":{"rendered":"Alstom and Partners Pioneer World-First Hydrogen-Converted Shunting Locomotive in Salzgitter"},"content":{"rendered":"<p><strong>SALZGITTER, GERMANY<\/strong> \u2014 In a landmark development for the European rail sector, global rail leader Alstom has successfully completed the world\u2019s first operational test run of a shunting locomotive retrofitted from diesel propulsion to direct hydrogen combustion. Conducted at Alstom\u2019s facility in Salzgitter, Lower Saxony, this milestone marks a decisive stride toward the complete decarbonisation of heavy industrial rail operations, proving that hydrogen technology is viable not only for passenger trains but also for heavy-duty, utilitarian yard locomotives. <\/p>\n<p>The successful trial is the result of a multi-sector collaborative effort involving industry innovators, regional transit operators, and top-tier academic and research institutions. As railways across Europe search for scalable pathways to meet aggressive net-zero emissions targets, this retrofitting initiative offers an economically and environmentally compelling blueprint: rather than scrapping functional fleets for expensive new zero-emission builds, operators can modernize their existing locomotives to run on green energy.<\/p>\n<hr \/>\n<h2>Main Facts<\/h2>\n<p>The core of this groundbreaking project is the successful conversion of a traditional diesel shunting locomotive to run entirely on direct, $textCO_2$-free hydrogen combustion. Shunting locomotives\u2014often referred to as switchers\u2014are essential workhorses in rail yards, ports, and heavy industrial facilities, where they are tasked with assembling trains, moving railcars, and managing logistical flows. Because these locomotives operate continuously under demanding stop-and-start conditions, they have traditionally relied on heavy-duty diesel engines, making them significant contributors to localized emissions and industrial carbon footprints.<\/p>\n<p>The modernized locomotive has now entered a rigorous phase of industrial testing. Until October 2025, the vehicle will be deployed in real-world operational trials within the heavy-duty steel production facilities of the Salzgitter Group. Managed by logistics subsidiary VPS Verkehrsbetriebe Peine-Salzgitter, these tests will evaluate the locomotive&#8217;s performance, durability, and efficiency under genuine industrial conditions. Once the testing phase concludes, the locomotive is scheduled to be returned to its original baseline configuration, though the data harvested from the trial will serve as the foundation for potential commercial series production.<\/p>\n<p>This pioneering modernization project is backed by a robust consortium of partners:<\/p>\n<ul>\n<li><strong>Alstom:<\/strong> Providing system integration, technological leadership, and project oversight.<\/li>\n<li><strong>VPS Verkehrsbetriebe Peine-Salzgitter:<\/strong> Managing the operational testing environment within industrial rail networks.<\/li>\n<li><strong>WTZ Ro\u00dflau gGmbH:<\/strong> Contributing advanced engineering expertise in engine conversion and combustion processes.<\/li>\n<li><strong>TU Braunschweig (Technical University of Brunswick):<\/strong> Overseeing specialized academic research, notably exhaust gas turbocharging systems.<\/li>\n<li><strong>The Fraunhofer Institute for Surface Engineering and Thin Films:<\/strong> Providing cutting-edge material science and engineering support.<\/li>\n<\/ul>\n<p>Financially, the initiative is heavily supported by regional structural transformation funds. The city of Salzgitter contributed EUR 1.5 million to the project, drawn from a larger EUR 50 million structural aid package provided by the State of Lower Saxony.<\/p>\n<hr \/>\n<h2>Chronology of the Salzgitter Hydrogen Initiative<\/h2>\n<p>The journey toward the world&#8217;s first hydrogen-converted shunting locomotive is the culmination of years of targeted research, strategic regional planning, and cross-sector engineering collaboration. <\/p>\n<ul>\n<li><strong>Phase 1: Conceptualization and Consortium Formation (22nd\u2013Early 21st Century Context):<\/strong> As Lower Saxony and the city of Salzgitter positioned themselves as European hubs for green energy and industrial transformation, stakeholders recognized that decarbonizing steel manufacturing under the SALCOS program must be matched by greening internal logistics. Plans were laid to adapt internal combustion engines to hydrogen rather than relying purely on fuel cells, capitalizing on the unique high-torque properties required by heavy industrial switchers.<\/li>\n<li><strong>Funding and Administrative Approval:<\/strong> With the backing of the Braunschweig Regional Development Office, the project secured crucial regional funding, anchored by Salzgitter\u2019s EUR 1.5 million financial contribution. This unlocked the capital needed for engineering design, bench testing, and component redesign.<\/li>\n<li><strong>Engineering and Laboratory Testing (2023\u20132024):<\/strong> Engineers from WTZ Ro\u00dflau and TU Braunschweig worked intensively on the complexities of hydrogen combustion. A major technical hurdle involved designing advanced exhaust gas turbocharging systems capable of managing the high excess air ratios inherent in hydrogen engines. <\/li>\n<li><strong>The World-First Test Run (September 2025):<\/strong> Alstom successfully executed the world&#8217;s first operational trial of the converted shunting locomotive at its Salzgitter site, demonstrating that direct hydrogen combustion can be seamlessly integrated into existing locomotive architecture.<\/li>\n<li><strong>Industrial Field Testing (September 2025 \u2013 October 2025):<\/strong> The locomotive was handed over to VPS for live operational trials at the Salzgitter steelworks. This phase is designed to stress-test the vehicle under real-world industrial logistics demands.<\/li>\n<li><strong>Project Conclusion and Scalability Evaluation (Autumn 2025 onwards):<\/strong> Following the collection of telemetry and performance data in October 2025, the project partners will analyze results to determine the commercial viability of a standardized retrofitting kit for European railway operators.<\/li>\n<\/ul>\n<hr \/>\n<h2>Supporting Data and Environmental Impact<\/h2>\n<p>The environmental justification for retrofitting diesel shunting locomotives is immense. According to industry data, Germany alone operates approximately 1,000 diesel shunting locomotives, with an estimated 4,000 additional units active across the wider European rail network. Because these engines run frequently at low speeds or idle for extended periods, their emissions profile per operational hour is disproportionately high relative to mainline freight transport.<\/p>\n<p>Alstom\u2019s calculated metrics highlight the staggering carbon-saving potential of the Salzgitter conversion project:<\/p>\n<ul>\n<li><strong>Annual Savings per Locomotive:<\/strong> A single retrofitted shunting locomotive can eliminate up to <strong>150 tonnes of $textCO_2$ per year<\/strong>.<\/li>\n<li><strong>Lifecycle Savings:<\/strong> Over a remaining operational service life of 15 to 20 years, a single converted unit can prevent up to <strong>3,000 tonnes of $textCO_2$<\/strong> from entering the atmosphere.<\/li>\n<li><strong>Equivalencies:<\/strong> Eliminating 3,000 tonnes of carbon dioxide is equivalent to taking roughly <strong>650 passenger cars<\/strong> off the road permanently or planting approximately <strong>200,000 trees<\/strong>.<\/li>\n<\/ul>\n<p>Beyond carbon dioxide reductions, hydrogen combustion significantly lowers particulate matter and sulfur oxide emissions, drastically improving local air quality around rail yards, ports, and industrial manufacturing plants.<\/p>\n<hr \/>\n<h2>Official Responses and Stakeholder Insights<\/h2>\n<p>The successful debut of the hydrogen shunting locomotive elicited enthusiastic responses from corporate leadership, municipal authorities, and academic partners alike.<\/p>\n<p><strong>Fran\u00e7ois Muller, Vice President Services for Central and Northern Europe at Alstom, emphasized the strategic advantage of fleet retention:<\/strong>  <\/p>\n<blockquote>\n<p><em>&quot;With this research project, we are once again pioneering the use of hydrogen in rail transport. We are expanding the spectrum of vehicle modernisation with a doubly sustainable approach\u2014thanks to this solution, our customers can switch to emission-free operation without having to replace their existing fleet.&quot;<\/em><\/p>\n<\/blockquote>\n<p><strong>Frank Klingebiel, Mayor of Salzgitter, highlighted the city\u2019s proactive role in the green energy transition:<\/strong>  <\/p>\n<blockquote>\n<p><em>&quot;At our Hydrogen Campus, we are developing the technologies of tomorrow in the areas of factory transformation, green hydrogen and hydrogen storage. In the joint project to decarbonise shunting traffic, the city is not only on the sidelines but is also an active player with a financial contribution of EUR 1.5 million.&quot;<\/em><\/p>\n<\/blockquote>\n<p><strong>Dr Johannes Dreier, Managing Director of VPS, pointed to the operational synergy with industrial logistics:<\/strong>  <\/p>\n<blockquote>\n<p><em>&quot;This trial fits perfectly into our group\u2019s transition plans. Operating 42 shunting locomotives within our steel production network gives us a unique testing ground to prove that sustainable logistics can match the reliability and power of traditional fossil-fuel operations.&quot;<\/em><\/p>\n<\/blockquote>\n<p><strong>Dr Christian Reiser of WTZ Ro\u00dflau underscored the engineering achievement:<\/strong>  <\/p>\n<blockquote>\n<p><em>&quot;This milestone represents the successful transfer of complex hydrogen combustion technology directly from the test bench to the real track, proving that our engineering models hold up under actual operational stress.&quot;<\/em><\/p>\n<\/blockquote>\n<p><strong>Prof Dr Peter Eilts of TU Braunschweig addressed the technical complexities overcome during development:<\/strong>  <\/p>\n<blockquote>\n<p><em>&quot;We have worked intensively on the design of the exhaust gas turbocharging, as the high excess air poses a particular challenge here. With success! Hydrogen\u2019s unique combustion properties allow for improved thermal efficiency while drastically curbing harmful emissions.&quot;<\/em><\/p>\n<\/blockquote>\n<p><strong>Astrid Paus of the Braunschweig Regional Development Office summarized the regional economic perspective:<\/strong>  <\/p>\n<blockquote>\n<p><em>&quot;This project demonstrates exceptionally well-invested funding in innovation, $textCO_2$ savings, and climate protection, cementing Lower Saxony\u2019s position as a leader in green industrial technology.&quot;<\/em><\/p>\n<\/blockquote>\n<hr \/>\n<h2>Wider Implications for European Rail and Heavy Industry<\/h2>\n<p>The implications of Alstom\u2019s Salzgitter project extend far beyond a single locomotive trial. As European Union regulations on industrial and transportation emissions tighten, rail operators face mounting pressure to eliminate diesel reliance by mid-century. While electrification via overhead catenary wires remains the gold standard for high-density passenger and freight corridors, electrifying every remote rail siding, private industrial yard, and port facility is economically prohibitive.<\/p>\n<h3>A Cost-Effective Alternative to Fleet Replacement<\/h3>\n<p>Purchasing brand-new zero-emission locomotives\u2014whether battery-electric or hydrogen fuel cell-powered\u2014requires massive capital expenditure. For private rail operators, regional logistics companies, and industrial giants, the capital hurdle of buying entirely new fleets can stall climate action. <\/p>\n<p>Alstom\u2019s retrofitting approach solves this economic bottleneck. By converting existing internal combustion engines to direct hydrogen combustion, operators can:<\/p>\n<ol>\n<li>Retain the structural chassis, transmissions, and heavy-duty towing gear of their trusted rolling stock.<\/li>\n<li>Avoid the lengthy delivery backlogs associated with manufacturing custom new locomotives.<\/li>\n<li>Rapidly slash emissions using existing maintenance infrastructure with minor modifications.<\/li>\n<\/ol>\n<h3>Integration with the SALCOS Programme<\/h3>\n<p>The project is deeply intertwined with Salzgitter AG\u2019s broader corporate transformation strategy, most notably the <strong>SALCOS (Salzgitter Low CO\u2082 Steelmaking)<\/strong> initiative. SALCOS aims to fundamentally revolutionize steel production by replacing traditional carbon-heavy blast furnaces with hydrogen-based direct reduction plants. By aligning internal logistics\u2014specifically the VPS shunting fleet\u2014with green hydrogen systems, the entire industrial ecosystem moves closer to a truly circular, zero-emission manufacturing model.<\/p>\n<h3>Paving the Way for Commercial Scalability<\/h3>\n<p>As the locomotive undergoes its final weeks of industrial trials at the Salzgitter steelworks through October 2025, eyes across the European rail industry remain fixed on the data. If the field tests confirm long-term durability, fuel efficiency, and cost-effectiveness, Alstom and its partners plan to lay the groundwork for a standardized, scalable series-production solution. <\/p>\n<p>Should this retrofitting kit become commercially available on a broader market, thousands of diesel shunting locomotives across Europe could find a second life as clean, hydrogen-powered workhorses\u2014accelerating the continent&#8217;s transition to a sustainable, carbon-neutral rail network without the prohibitive costs of wholesale fleet replacement.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SALZGITTER, GERMANY \u2014 In a landmark development for the European rail sector, global rail leader Alstom has successfully completed the world\u2019s first operational test run of a shunting locomotive retrofitted from diesel propulsion to direct hydrogen combustion. Conducted at Alstom\u2019s facility in Salzgitter, Lower Saxony, this milestone marks a decisive stride toward the complete decarbonisation [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":1144,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[201],"tags":[205,263,202,203,262,204,207,264,394,742,908,209,261],"class_list":["post-1145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-railway-sustainability","tag-alstom","tag-converted","tag-decarbonisation","tag-environment","tag-first","tag-green-rail","tag-hydrogen","tag-locomotive","tag-partners","tag-pioneer","tag-salzgitter","tag-shunting","tag-world"],"_links":{"self":[{"href":"https:\/\/therailchannel.com\/index.php?rest_route=\/wp\/v2\/posts\/1145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/therailchannel.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/therailchannel.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/therailchannel.com\/index.php?rest_route=\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/therailchannel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1145"}],"version-history":[{"count":0,"href":"https:\/\/therailchannel.com\/index.php?rest_route=\/wp\/v2\/posts\/1145\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/therailchannel.com\/index.php?rest_route=\/wp\/v2\/media\/1144"}],"wp:attachment":[{"href":"https:\/\/therailchannel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/therailchannel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/therailchannel.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}