{"id":3193,"date":"2023-04-12T09:57:00","date_gmt":"2023-04-12T08:57:00","guid":{"rendered":"https:\/\/portstrategy.nfdtesting.uk\/greenport\/2023\/04\/12\/the-benefits-of-conversion-over-replacement\/"},"modified":"2026-08-27T14:02:43","modified_gmt":"2026-08-27T13:02:43","slug":"the-benefits-of-conversion-over-replacement","status":"publish","type":"post","link":"https:\/\/www.portstrategy.com\/greenport\/news\/projects-initiatives-greenport\/the-benefits-of-conversion-over-replacement\/","title":{"rendered":"The benefits of conversion over replacement"},"content":{"rendered":"<p>Having been in service around the clock as an inspection vessel at the Port of Gothenburg since 1979, M\/S Hamnen is being converted to run on electrical power. This means the vessel can be expected to remain in the port\u2019s service for many more years to come.<\/p>\n<p>\u201cThe strength of M\/S Hamnen is its versatility and the fact that we\u2019re always at hand when things happen. The vessel has many different duties, but essentially it\u2019s there to represent the port authority and to make sure that the rules set out in the port regulations are observed,\u201d says David Falk, skipper of M\/S Hamnen.<\/p>\n<p><strong>Conversion vs replacement<\/strong><\/p>\n<p>As well as being skipper of M\/S Hamnen, Mr Falk is also project manager of the vessel\u2019s electrification. Replacing M\/S Hamnen completely was considered, but deemed unnecessary.<\/p>\n<p>\u201cM\/S Hamnen is in really good condition, and there\u2019s no other vessel that\u2019s better suited to its assignment. By converting it rather than replacing it, we further reduce emissions, as the vessel will then not be taken into use by a new owner,\u201d says Mr Falk.<\/p>\n<p>At present, M\/S Hamnen is in operation for around 1,200 hours a year, consuming approximately 25,000 litres of diesel. This represents 67 tonnes of carbon dioxide emissions, which is 15% of the Gothenburg Port Authority\u2019s total emissions.<\/p>\n<p>The engine room will be undergoing a total transformation during the conversion, as M\/S Hamnen\u2019s existing diesel engine will be replaced by a totally new electric engine with an output of 250 kW.<\/p>\n<p>A four to five tonne bank of batteries with 520 kWh will also be installed, and these can be supplemented by additional battery capacity in the future if required.<\/p>\n<p>\u201cIn exceptional cases, special call-outs, unforeseen events or extreme weather conditions may require additional range, so we\u2019re also installing an auxiliary diesel engine that runs on HVO. The vessel\u2019s task is to be available in all contexts 24\/7, so we need that flexibility. But the goal is to run on battery power for 90% of the time,\u201d adds Mr Falk.<\/p>\n<p>M\/S Hamnen\u2019s regular berth position in the Port of Gothenburg will be fitted with a 63 amp charger, which is sufficient for charging between regular assignments.<\/p>\n<p>The vessel will be taken to the \u00d6-varvet shipyard on the island of \u00d6cker\u00f6 in the Gothenburg archipelago during the spring and will return to service in the autumn.<\/p>\n<p>While the vessel is laid up, Mr Falk and the rest of the crew will be using a smaller replacement boat to perform their inspection assignment.<\/p>\n<p><strong>Climate goal<\/strong><\/p>\n<p>For the Gothenburg Port Authority, the electrification of M\/S Hamnen is another step forward in the quest to achieve the port\u2019s climate goal of a 70% reduction in port-related emissions from the whole Gothenburg land-side by 2030.<\/p>\n<p>Viktor Allgur\u00e9n, head of innovation at the Gothenburg Port Authority, said that for the goal to be completely realised though, it will take all stakeholders at the port working together.<\/p>\n<p>\u201cAs far as the Gothenburg Port Authority is concerned, we have high expectations of our partners both in and around the port and the decision-makers we collaborate with when it comes to climate change and we need to have everyone on board if we\u2019re going to meet our goals.\u201d<\/p>\n<p>\u201cIf we\u2019re going to be able to demand that others contribute to the transition, we must show in all ways that we\u2019re setting an example in the transition. It\u2019s a question of credibility,\u201d he says.<\/p>\n<p>&nbsp;<\/p>\n<h2>Key facts: M\/S Hamnen<\/h2>\n<p><strong>Owner and operator:<\/strong> The Gothenburg Port Authority, through the Harbour Master\u2019s Office and Harbour Master \u00c5sa K\u00e4rnebro who is responsible for the vessel.<\/p>\n<p><strong>Length:<\/strong> 20.3 m<\/p>\n<p><strong>Width:<\/strong> 5.7 m<\/p>\n<p><strong>Draught:<\/strong> 2.6 m<\/p>\n<p><strong>Cruising speed:<\/strong> 8 knots<\/p>\n<p><strong>Operating hours\/year:<\/strong> 1,200<\/p>\n<p><strong>New electric engine:<\/strong> 250 kW<\/p>\n<p><strong>Battery bank:<\/strong> 520 kWh<\/p>\n<p><strong>Range on electrical power after conversion:<\/strong> at least 4 hours at 6 knots<\/p>\n<p><strong>Investment:<\/strong> SEK 17.3 million<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Port of Gothenburg\u2019s inspection vessel is being converted to electric, rather than being replaced, cutting 15% of emissions at the port.<\/p>\n","protected":false},"author":8,"featured_media":3194,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22,8],"tags":[288,936,361,23,238,935,937],"sponsor":[],"class_list":["post-3193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products-services-greenport","category-projects-initiatives-greenport","tag-electric-vessels","tag-m-s-hamnen","tag-port-emissions","tag-port-equipment","tag-port-of-gothenburg","tag-port-vessel","tag-vessel-conversion"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/posts\/3193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/comments?post=3193"}],"version-history":[{"count":1,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/posts\/3193\/revisions"}],"predecessor-version":[{"id":3195,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/posts\/3193\/revisions\/3195"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/media\/3194"}],"wp:attachment":[{"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/media?parent=3193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/categories?post=3193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/tags?post=3193"},{"taxonomy":"sponsor","embeddable":true,"href":"https:\/\/www.portstrategy.com\/greenport\/wp-json\/wp\/v2\/sponsor?post=3193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}