{"id":11256,"date":"2026-04-24T11:47:38","date_gmt":"2026-04-24T09:47:38","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=11256"},"modified":"2026-04-24T11:47:38","modified_gmt":"2026-04-24T09:47:38","slug":"a-promise-made-to-the-sea-first-hydrogen-refueling-in-port","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/en\/11256\/a-promise-made-to-the-sea-first-hydrogen-refueling-in-port\/","title":{"rendered":"A promise made to the sea, first hydrogen refueling in port"},"content":{"rendered":"<p>At the <a href=\"https:\/\/www.baglietto.com\/en\/sustainability\/bzero\/\" target=\"_blank\" rel=\"noopener\"><strong>Baglietto<\/strong><\/a> shipyard, located in the <strong>Port of La Spezia<\/strong>, the <strong>first hydrogen refueling test<\/strong> from a dockside mobile vessel to a boat was successfully completed on April 1, 2026. The test confirmed the feasibility of low-pressure hydrogen transfer (30 bar) using an <strong>onboard storage system based on metal hydrides<\/strong>, which have proven to guarantee the intrinsic safety of this type of operation.<\/p>\n<p>This is another important step towards the realization of Baglietto&#8217;s <a href=\"https:\/\/www.tempco.it\/blog\/en\/9340\/from-water-to-energy-baglietto-unfolds-the-future-of-zero-emission-yachting\/\" target=\"_blank\" rel=\"noopener\"><strong>Bzero project<\/strong><\/a>, a true &#8216;promise made to the sea&#8217; from the shipbuilder, aimed at implementing a green <a href=\"https:\/\/www.tempco.it\/blog\/en\/11151\/brazed-plate-exchangers-for-hydrogen-applications-electrolysis-and-fuel-cells\/\" target=\"_blank\" rel=\"noopener\">hydrogen production<\/a> module on its yachts for <strong>zero-emission navigation<\/strong>. Using filtered and deionized seawater, Bzero will be able to produce hydrogen with a purity of grade 5.0 at a maximum pressure of 35 bar, <strong>using a system of AEM electrolyzers<\/strong> (for a total power of approximately 55 kW), powered mainly by energy from renewable sources.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-11257\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-navigazione-a-idrogeno-1.jpg\" alt=\"Image illustrating the green hydrogen production systems using electrolyzers and fuel cells for zero-emission navigation onboard in Baglietto's Bzero yacht.\" width=\"570\" height=\"497\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-navigazione-a-idrogeno-1.jpg 1638w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-navigazione-a-idrogeno-1-300x262.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-navigazione-a-idrogeno-1-1024x893.jpg 1024w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-navigazione-a-idrogeno-1-768x670.jpg 768w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-navigazione-a-idrogeno-1-1536x1339.jpg 1536w\" sizes=\"auto, (max-width: 570px) 100vw, 570px\" \/><\/p>\n<p>Baglietto&#8217;s zero-emission yacht for sustainable navigation uses <strong>photovoltaics to power electrolyzers<\/strong>, which produce <strong>green hydrogen directly from seawater<\/strong>. These in turn power an <strong>onboard PEM fuel cell system<\/strong>, enabling navigation in full-electric or hybrid mode. The propulsion system is automatically selected by the yacht&#8217;s advanced navigation systems to ensure the best balance between performance and efficiency. The <strong>cooling systems<\/strong> provided by <strong>Tempco<\/strong>, one of the partners in this important project, play a key role in the entire process: precise, constant, and reliable temperature regulation of all the <a href=\"https:\/\/www.tempco.it\/blog\/en\/9970\/hybrid-propulsion-electronics-on-board-and-cooling-for-baglietto-luxury-yachts\/\" target=\"_blank\" rel=\"noopener\"><strong>yacht&#8217;s power electronics<\/strong><\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-11260\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-modalita-navigazione-yacht-1.jpg\" alt=\"Image illustrating Baglietto's Bzero yacht for zero-emission navigation with hybrid or full electric hydrogen propulsion modes.\" width=\"629\" height=\"305\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-modalita-navigazione-yacht-1.jpg 1843w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-modalita-navigazione-yacht-1-300x146.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-modalita-navigazione-yacht-1-1024x497.jpg 1024w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-modalita-navigazione-yacht-1-768x373.jpg 768w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-modalita-navigazione-yacht-1-1536x745.jpg 1536w\" sizes=\"auto, (max-width: 629px) 100vw, 629px\" \/><\/p>\n<p>Going more in depth, as detailed by Baglietto itself, the hydrogen produced is stored in solid state, at low pressure and ambient temperature, inside <strong>metal hydrides tanks<\/strong> (MH storage). The hydrogen storage and release process is managed by a <strong>thermal management system<\/strong> that heats the metal hydrides during discharge and cools them during recharging. The required thermal energy is recovered from the heat generated by a PEM fuel cell module, with a capacity of approximately 185 kW, which uses <strong>hydrogen as fuel to produce zero-emission and zero-noise electricity<\/strong>. The generated power is regulated via a DC\/DC converter on a 700 V DC central bus, a solution already tested on Baglietto yachts equipped with hybrid technology. Connected in parallel to the fuel cell on the same bus is a <strong>set of lithium-ion batteries<\/strong> designed to absorb peaks and sudden variations in user energy demand.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-11262\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-yacht-zero-emissioni-cantiere-La-Spezia-1.jpg\" alt=\"Image of the prototype for operational testing of Baglietto's Bzero zero-emission yacht, built at the Port of La Spezia.\" width=\"590\" height=\"424\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-yacht-zero-emissioni-cantiere-La-Spezia-1.jpg 1608w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-yacht-zero-emissioni-cantiere-La-Spezia-1-300x216.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-yacht-zero-emissioni-cantiere-La-Spezia-1-1024x736.jpg 1024w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-yacht-zero-emissioni-cantiere-La-Spezia-1-768x552.jpg 768w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2026\/04\/Tempco-Baglietto-Bzero-yacht-zero-emissioni-cantiere-La-Spezia-1-1536x1104.jpg 1536w\" sizes=\"auto, (max-width: 590px) 100vw, 590px\" \/><\/p>\n<p>The operations conducted on the prototype created in port are aimed at optimizing the technical aspects to obtain the necessary <strong>RINA certifications for hydrogen tank refueling operations<\/strong> and speeding up the procedure, while also ensuring the highest levels of process safety.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The first hydrogen refueling of a vessel was successfully completed at the Baglietto shipyard in the Port of La Spezia, as part of the Bzero yacht project for zero-emission hydrogen-powered navigation.<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,61,63,143,113,710,84],"tags":[3686,4071,751,127,3681,952,3682,145,2951,4711,4716,4713,4712,4714,499,824,4715,1111,3938,3962,342,3930,1098,3889,3685,1359],"class_list":["post-11256","post","type-post","status-publish","format-standard","hentry","category-cooling","category-energia-termica-en","category-heat-exchangers","category-heat-recovery","category-plate-heat-exchanger","category-temperature-control-unit","category-thermal-energy","tag-baglietto-en","tag-bzero-en","tag-certifications","tag-cooling-2","tag-electrolyzers","tag-fuel-cells","tag-green-hydrogen","tag-heat-recovery-2","tag-hydrogen","tag-hydrogen-refueling","tag-la-spezia-en","tag-metal-hydrides","tag-navigation","tag-photovoltaics","tag-power-electronics","tag-renewables","tag-rina-en","tag-safety","tag-solid-sustainability-en","tag-storage","tag-sustainability","tag-tempco-green-en","tag-testing","tag-thermal-management","tag-yacht-en","tag-zero-emissions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - 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