{"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":"

At the Baglietto<\/strong><\/a> shipyard, located in the Port of La Spezia<\/strong>, the 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 onboard storage system based on metal hydrides<\/strong>, which have proven to guarantee the intrinsic safety of this type of operation.<\/p>\n

This is another important step towards the realization of Baglietto’s Bzero project<\/strong><\/a>, a true ‘promise made to the sea’ from the shipbuilder, aimed at implementing a green hydrogen production<\/a> module on its yachts for 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, using a system of AEM electrolyzers<\/strong> (for a total power of approximately 55 kW), powered mainly by energy from renewable sources.<\/p>\n

\"Image<\/p>\n

Baglietto’s zero-emission yacht for sustainable navigation uses photovoltaics to power electrolyzers<\/strong>, which produce green hydrogen directly from seawater<\/strong>. These in turn power an onboard PEM fuel cell system<\/strong>, enabling navigation in full-electric or hybrid mode. The propulsion system is automatically selected by the yacht’s advanced navigation systems to ensure the best balance between performance and efficiency. The cooling systems<\/strong> provided by 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 yacht’s power electronics<\/strong><\/a>.<\/p>\n

\"Image<\/p>\n

Going more in depth, as detailed by Baglietto itself, the hydrogen produced is stored in solid state, at low pressure and ambient temperature, inside metal hydrides tanks<\/strong> (MH storage). The hydrogen storage and release process is managed by a 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 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 set of lithium-ion batteries<\/strong> designed to absorb peaks and sudden variations in user energy demand.<\/p>\n

\"Image<\/p>\n

The operations conducted on the prototype created in port are aimed at optimizing the technical aspects to obtain the necessary 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>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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":[],"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],"yoast_head":"\nA promise made to the sea, first hydrogen refueling in port - Tempco Blog<\/title>\n<meta name=\"description\" content=\"The first hydrogen refueling of a vessel was successfully completed at the Baglietto shipyard in the Port of La Spezia.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tempco.it\/blog\/en\/11256\/a-promise-made-to-the-sea-first-hydrogen-refueling-in-port\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A promise made to the sea, first hydrogen refueling in port - 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