{ "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://kilowatts.uk#organization", "department": { "@id": "https://kilowatts.uk#organization/local" }, "name": "Kilowatts UK", "legalName": "Vangarda Build Limited", "url": "https://kilowatts.uk", "logo": { "@type": "ImageObject", "url": "https://kilowatts.uk/images/kw-logo-large.png", "width": 1024, "height": 1024 }, "description": "kilowatts.uk is the UK's renewable energy marketplace — connecting homeowners and businesses with MCS-certified solar, heat pump, battery storage, wind power, and EV charging installers, with free comparison tools and independent guides.", "contactPoint": [ { "@type": "ContactPoint", "telephone": "+448000096058", "contactType": "customer service", "contactOption": "TollFree", "areaServed": "GB", "availableLanguage": "English" }, { "@type": "ContactPoint", "telephone": "+447378472152", "contactType": "mobile", "areaServed": "GB", "availableLanguage": "English" } ], "sameAs": [ "https://www.facebook.com/kilowatts.uk", "https://www.instagram.com/kilowatts.uk", "https://www.tiktok.com/@kilowatts.uk", "https://www.youtube.com/@kilowattsuk", "https://twitter.com/kilowattsuk" ], "address": { "@type": "PostalAddress", "streetAddress": "Carey, Northwood Rd", "addressLocality": "Broadstairs", "addressRegion": "Kent", "postalCode": "CT10 2RZ", "addressCountry": "GB" } }, { "@type": "LocalBusiness", "parentOrganization": { "@id": "https://kilowatts.uk#organization" }, "@id": "https://kilowatts.uk#organization/local", "name": "Kilowatts UK", "description": "kilowatts.uk is the UK's renewable energy marketplace — connecting homeowners and businesses with MCS-certified solar, heat pump, battery storage, wind power, and EV charging installers, with free comparison tools and independent guides.", "url": "https://kilowatts.uk", "image": "https://kilowatts.uk/images/kw-logo-large.png", "priceRange": "££", "telephone": "+447378472152", "legalName": "Vangarda Build Limited", "address": { "@type": "PostalAddress", "streetAddress": "Carey, Northwood Rd", "addressLocality": "Broadstairs", "addressRegion": "Kent", "postalCode": "CT10 2RZ", "addressCountry": "GB" }, "geo": { "@type": "GeoCoordinates", "latitude": 51.3588923, "longitude": 1.4062795 }, "openingHoursSpecification": [ { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday" ], "opens": "09:00", "closes": "17:00" } ], "areaServed": { "@type": "Country", "name": "United Kingdom" } }, { "@type": "WebSite", "@id": "https://kilowatts.uk/#website", "url": "https://kilowatts.uk", "name": "Kilowatts UK", "description": "kilowatts.uk is the UK's renewable energy marketplace — connecting homeowners and businesses with MCS-certified solar, heat pump, battery storage, wind power, and EV charging installers, with free comparison tools and independent guides.", "inLanguage": "en-GB", "publisher": { "@type": "Organization", "@id": "https://kilowatts.uk#organization" }, "potentialAction": { "@type": "SearchAction", "target": { "@type": "EntryPoint", "urlTemplate": "https://kilowatts.uk/tags/{search_term_string}/" }, "query-input": "required name=search_term_string" }, "hasPart": [ { "@type": "WebApplication", "@id": "https://kilowatts.uk/#solar-residential-app", "name": "Residential Solar Panel Comparison Tool", "description": "Compare residential solar panel systems and estimate savings for UK homes.", "url": "https://kilowatts.uk/services/residential/renewable-energy/residential-solar-panel-installation/compare/", "applicationCategory": "Utility", "operatingSystem": "All" }, { "@type": "WebApplication", "@id": "https://kilowatts.uk/#solar-commercial-app", "name": "Commercial Solar Comparison Tool", "description": "Compare commercial solar installations and estimate business energy savings.", "url": "https://kilowatts.uk/services/commercial/renewable-energy/commercial-solar-panel-installation/compare/", "applicationCategory": "BusinessApplication", "operatingSystem": "All" }, { "@type": "WebApplication", "@id": "https://kilowatts.uk/#solar-industrial-app", "name": "Industrial Solar Comparison Tool", "description": "Compare industrial-scale solar systems and project energy output.", "url": "https://kilowatts.uk/services/industrial/renewable-energy/industrial-solar-panel-installation/compare/", "applicationCategory": "BusinessApplication", "operatingSystem": "All" }, { "@type": "WebApplication", "@id": "https://kilowatts.uk/#wind-tool", "name": "Flower Turbines quote tool", "description": "Discover Flower Turbines performance and pricing with our interactive quote tool. View generation, savings, and environmental benefits instantly.", "url": "https://kilowatts.uk/services/wind-power/flower-turbines/", "applicationCategory": "Utility", "operatingSystem": "All" } ], "about": { "@id": "https://kilowatts.uk/about-us/#webpage" } }, { "@type": "BreadcrumbList", "name": "Breadcrumb", "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#webpage-breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "url": "https://kilowatts.uk/", "item": "https://kilowatts.uk/" }, { "@type": "ListItem", "position": 2, "name": "Resources", "url": "https://kilowatts.uk/resources/", "item": "https://kilowatts.uk/resources/" }, { "@type": "ListItem", "position": 3, "name": "World’s First Hydrogen-Engine Tanker Completes Voyage—But Was It Really Hydrogen-Only", "url": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/", "item": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/" } ] }, { "@type": "FAQPage", "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#faq", "url": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#faq", "inLanguage": "en-GB", "isPartOf": [ { "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#webpage" }, { "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#content" } ], "mainEntity": [ { "@type": "Question", "name": "Was the Kikomaru’s voyage really powered by hydrogen only?", "acceptedAnswer": { "@type": "Answer", "text": "No. On the Nippon Foundation announcement of 30 September 2026, hydrogen was the principal energy source for the short Osaka Bay demonstration, but a small quantity of hydrotreated vegetable oil (HVO) was used to start combustion. That is pilot ignition, not a second main fuel, yet it is enough to rule out a literal reading of hydrogen-only. The organiser’s phrase “fitted with a hydrogen-only engine” describes the machinery category, not a logbook showing that no other fuel was burned." } }, { "@type": "Question", "name": "What did the 25 September 2026 demonstration actually show?", "acceptedAnswer": { "@type": "Answer", "text": "As reported by the Nippon Foundation, the 4,500-tonne Kikomaru ran about 33 kilometres in two hours in Osaka Bay using a hydrogen-engine generating system. It was a real, supervised transit, not a drawing, but two hours in a bay does not show range, overnight reliability, crew routine or commercial bunkering. The “world first” wording is the organiser’s claim based on its own research, not a finding settled by an independent register of every earlier trial." } }, { "@type": "Question", "name": "How did the hydrogen system drive the ship?", "acceptedAnswer": { "@type": "Answer", "text": "The propeller was not turned directly by a hydrogen engine in the conventional machinery-space sense. Containerised generators on deck, together with batteries, supplied an electric propulsion system. The share of energy that came from the battery on this run was not published, so it is not clear whether the engine carried the voyage or mainly topped up a battery charged beforehand. Deck modules still need structure, weight margin, ventilation, fire protection, cabling and a bunkering connection, none of which were set out in the announcement." } }, { "@type": "Question", "name": "Why did the engine still need HVO, and does that mean zero carbon dioxide?", "acceptedAnswer": { "@type": "Answer", "text": "HVO, a biofuel made by treating vegetable oils or similar feedstocks with hydrogen, was injected to light the hydrogen-air mixture. The quantity was not published, so “small” has to stay qualitative. Burning HVO still releases carbon dioxide at the funnel. Treating that carbon as biogenic across the fuel’s life cycle is an accounting choice about origins, not the same as a smokestack with no carbon dioxide." } }, { "@type": "Question", "name": "What does the reported 1.2 tonnes of avoided carbon dioxide mean?", "acceptedAnswer": { "@type": "Answer", "text": "The 1.2 tonnes is an organiser estimate, in the 30 September 2026 announcement, of carbon dioxide avoided against conventional fossil-fuel operation for this one demonstration. The calculation method was not set out in the English material that has circulated, and the carbon intensity of the hydrogen was not disclosed, so it is not a well-to-wake result. It also cannot be multiplied into a yearly total: hydrogen use, efficiency and storage volume were not published." } }, { "@type": "Question", "name": "Does a NOx certificate mean the exhaust was clean?", "acceptedAnswer": { "@type": "Answer", "text": "No. Hydrogen combustion does not produce carbon dioxide from the hydrogen itself, but high flame temperatures can still form nitrogen oxides from the air. An IMO Tier II certificate, as reported for this engine, means the engine met that tier’s NOx limit under the relevant test conditions. It does not mean pollutant-free exhaust, and it is not the tighter Tier III standard used in designated NOx emission control areas for ships that fall under those rules." } }, { "@type": "Question", "name": "Would Japanese approval let a similar ship operate in UK waters?", "acceptedAnswer": { "@type": "Answer", "text": "No. Nothing in the Japanese trial clears this package for UK waters. For a UK-flag ship, the Maritime and Coastguard Agency is the flag administration, and a survey would start from the IGF Code for low-flashpoint gas fuels, plus any flag guidance that applies to hydrogen. Classification society, harbour authority and insurer are separate gates, and a foreign-flag ship calling in the UK would still face port-state control and harbour directions. Naming those roles is a map of the decision, not evidence that this containerised arrangement has been accepted." } }, { "@type": "Question", "name": "Does this trial change what UK homeowners should expect from hydrogen or home batteries?", "acceptedAnswer": { "@type": "Answer", "text": "Not in any practical buying sense. The demonstration is a short coastal-shipping trial with an undisclosed hydrogen source, not a domestic heating, solar or battery product. Home battery storage and shipboard batteries solve different jobs, and this announcement does not set UK retrofit cost, availability or safety clearance for either. Claims of hydrogen-only or zero-emission operation should be read against the fuel actually burned and the pathway used to make the hydrogen." } } ], "about": { "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#content" } }, { "@type": "WebPage", "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#webpage", "url": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/", "encoding": [ { "@type": "MediaObject", "encodingFormat": "text/markdown", "contentUrl": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o.md" }, { "@type": "MediaObject", "encodingFormat": "application/ld+json", "contentUrl": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o.schema" } ], "name": "World’s First Hydrogen-Engine Tanker Completes Voyage—But Was It Really Hydrogen-Only", "headline": "World’s First Hydrogen-Engine Tanker Completes Voyage—But Was It Really Hydrogen-Only", "description": "Japan’s Kikomaru tanker completed a short hydrogen-engine voyage, but HVO pilot fuel means it was not hydrogen-only. What UK ports should note.", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "publisher": { "@id": "https://kilowatts.uk#organization" }, "inLanguage": "en-GB", "primaryImageOfPage": { "@type": "ImageObject", "url": "https://kilowatts.uk/uploads_resolved/images/880/960.webp", "width": 960, "height": 960 }, "breadcrumb": { "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#webpage-breadcrumb" }, "datePublished": "2026-10-05T16:47:28+00:00", "dateModified": "2026-10-05T16:47:28+00:00", "author": { "@type": "Person", "@id": "https://kilowatts.uk/authors/david-coleman/#person", "name": "David Coleman", "url": "https://kilowatts.uk/authors/david-coleman/", "sameAs": [ "https://kilowatts.uk/authors/david-coleman/", "https://www.linkedin.com/in/david-martyn-coleman/" ] }, "mainEntity": { "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#content" }, "relatedLink": [ "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/", "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/", "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/", "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/" ], "significantLink": [ "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/", "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/", "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/", "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/" ], "mentions": [ { "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#related-articles" } ] }, { "@type": "ItemList", "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#related-articles", "name": "Related articles", "itemListOrder": "https://schema.org/ItemListOrderUnordered", "numberOfItems": 4, "isPartOf": { "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#webpage" }, "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "BUS Grant for Heat Pumps 2026: Eligibility and £7,500 Subsidy", "url": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/", "item": { "@type": "Article", "@id": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/#content", "name": "BUS Grant for Heat Pumps 2026: Eligibility and £7,500 Subsidy", "headline": "BUS Heat Pump Grant 2026", "url": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/#webpage", "name": "BUS Grant for Heat Pumps 2026: Eligibility and £7,500 Subsidy", "url": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/", "description": "The grant is not based on heat pump size, so an eligible 4 kW air source heat pump and an eligible 6 kW air source heat pump receive the same subsidy.", "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "breadcrumb": { "@type": "BreadcrumbList", "@id": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "url": "https://kilowatts.uk/", "item": "https://kilowatts.uk/" }, { "@type": "ListItem", "position": 2, "name": "Resources", "url": "https://kilowatts.uk/resources/", "item": "https://kilowatts.uk/resources/" }, { "@type": "ListItem", "position": 3, "name": "BUS Grant for Heat Pumps 2026: Eligibility and £7,500 Subsidy", "url": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/", "item": "https://kilowatts.uk/resources/bus-grant-for-heat-pumps-2026-eligibility-and-7500-subsidy/" } ] }, "datePublished": "2026-07-18T15:22:04+00:00", "dateModified": "2026-07-18T15:22:04+00:00" }, "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "description": "The grant is not based on heat pump size, so an eligible 4 kW air source heat pump and an eligible 6 kW air source heat pump receive the same subsidy.", "author": { "@type": "Person", "@id": "https://kilowatts.uk/authors/david-coleman/#person", "name": "David Coleman", "url": "https://kilowatts.uk/authors/david-coleman/", "sameAs": [ "https://kilowatts.uk/authors/david-coleman/", "https://www.linkedin.com/in/david-martyn-coleman/" ], "jobTitle": "Founder & Renewable Energy Author", "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/images/authors/david-coleman.webp", "width": 400, "height": 400 }, "description": "David Coleman is the founder of kilowatts.uk, a UK-based renewable energy platform. He specialises in solar panels, battery storage, heat pumps, and energy policy, drawing on real installation data and direct industry experience." }, "publisher": { "@id": "https://kilowatts.uk#organization" }, "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/uploads_resolved/images/444/960.webp", "width": 960, "height": 480 }, "datePublished": "2026-07-18T15:22:04+00:00", "dateModified": "2026-07-18T15:22:04+00:00" } }, { "@type": "ListItem", "position": 2, "name": "Warm Homes Plan 2026 - Grants Loans - Energy Upgrades Explained", "url": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/", "item": { "@type": "Article", "@id": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/#content", "name": "Warm Homes Plan 2026 - Grants Loans - Energy Upgrades Explained", "headline": "Warm Homes Plan 2026", "url": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/#webpage", "name": "Warm Homes Plan 2026 - Grants Loans - Energy Upgrades Explained", "url": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/", "description": "Discover the UK Warm Homes Plan 2026. Learn about £15 billion in grants and low-interest loans for solar panels, heat pumps, insulation and batteries.", "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "breadcrumb": { "@type": "BreadcrumbList", "@id": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "url": "https://kilowatts.uk/", "item": "https://kilowatts.uk/" }, { "@type": "ListItem", "position": 2, "name": "Resources", "url": "https://kilowatts.uk/resources/", "item": "https://kilowatts.uk/resources/" }, { "@type": "ListItem", "position": 3, "name": "Warm Homes Plan 2026 - Grants Loans - Energy Upgrades Explained", "url": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/", "item": "https://kilowatts.uk/resources/warm-homes-plan-2026-grants-loans-energy-upgrades-explained/" } ] }, "datePublished": "2026-02-04T23:50:27+00:00", "dateModified": "2026-02-04T23:50:27+00:00" }, "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "description": "Discover the UK Warm Homes Plan 2026. Learn about £15 billion in grants and low-interest loans for solar panels, heat pumps, insulation and batteries.", "author": { "@type": "Person", "@id": "https://kilowatts.uk/authors/david-coleman/#person", "name": "David Coleman", "url": "https://kilowatts.uk/authors/david-coleman/", "sameAs": [ "https://kilowatts.uk/authors/david-coleman/", "https://www.linkedin.com/in/david-martyn-coleman/" ], "jobTitle": "Founder & Renewable Energy Author", "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/images/authors/david-coleman.webp", "width": 400, "height": 400 }, "description": "David Coleman is the founder of kilowatts.uk, a UK-based renewable energy platform. He specialises in solar panels, battery storage, heat pumps, and energy policy, drawing on real installation data and direct industry experience." }, "publisher": { "@id": "https://kilowatts.uk#organization" }, "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/uploads_resolved/images/134/960.webp", "width": 960, "height": 960 }, "datePublished": "2026-02-04T23:50:27+00:00", "dateModified": "2026-02-04T23:50:27+00:00" } }, { "@type": "ListItem", "position": 3, "name": "uk heating grant: eligibility and how to apply", "url": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/", "item": { "@type": "Article", "@id": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/#content", "name": "uk heating grant: eligibility and how to apply", "headline": "uk heating grant: eligibility and how to apply", "url": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/#webpage", "name": "uk heating grant: eligibility and how to apply", "url": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/", "description": "Being over 55 may help where a scheme considers vulnerability, health, low income or local council rules.", "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "breadcrumb": { "@type": "BreadcrumbList", "@id": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "url": "https://kilowatts.uk/", "item": "https://kilowatts.uk/" }, { "@type": "ListItem", "position": 2, "name": "Resources", "url": "https://kilowatts.uk/resources/", "item": "https://kilowatts.uk/resources/" }, { "@type": "ListItem", "position": 3, "name": "uk heating grant: eligibility and how to apply", "url": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/", "item": "https://kilowatts.uk/resources/uk-heating-grant-over-55-years-old-2026-eligibility-and-how-to-apply/" } ] }, "datePublished": "2026-07-19T09:34:09+00:00", "dateModified": "2026-07-19T09:34:09+00:00" }, "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "description": "Being over 55 may help where a scheme considers vulnerability, health, low income or local council rules.", "author": { "@type": "Person", "@id": "https://kilowatts.uk/authors/david-coleman/#person", "name": "David Coleman", "url": "https://kilowatts.uk/authors/david-coleman/", "sameAs": [ "https://kilowatts.uk/authors/david-coleman/", "https://www.linkedin.com/in/david-martyn-coleman/" ], "jobTitle": "Founder & Renewable Energy Author", "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/images/authors/david-coleman.webp", "width": 400, "height": 400 }, "description": "David Coleman is the founder of kilowatts.uk, a UK-based renewable energy platform. He specialises in solar panels, battery storage, heat pumps, and energy policy, drawing on real installation data and direct industry experience." }, "publisher": { "@id": "https://kilowatts.uk#organization" }, "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/uploads_resolved/images/482/960.webp", "width": 960, "height": 540 }, "datePublished": "2026-07-19T09:34:09+00:00", "dateModified": "2026-07-19T09:34:09+00:00" } }, { "@type": "ListItem", "position": 4, "name": "Printed batteries from tree pulp: research, not storage", "url": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/", "item": { "@type": "Article", "@id": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/#content", "name": "Printed batteries from tree pulp: research, not storage", "headline": "Printed batteries from tree pulp: research, not storage", "url": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/#webpage", "name": "Printed batteries from tree pulp: research, not storage", "url": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/", "description": "Printed batteries from tree pulp are research, not UK home or EV storage. They may suit sensors and packaging, but full-device biodegradation is unproven.", "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "breadcrumb": { "@type": "BreadcrumbList", "@id": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "url": "https://kilowatts.uk/", "item": "https://kilowatts.uk/" }, { "@type": "ListItem", "position": 2, "name": "Resources", "url": "https://kilowatts.uk/resources/", "item": "https://kilowatts.uk/resources/" }, { "@type": "ListItem", "position": 3, "name": "Printed batteries from tree pulp: research, not storage", "url": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/", "item": "https://kilowatts.uk/resources/printed-batteries-from-tree-pulp/" } ] }, "datePublished": "2026-09-27T20:55:39+00:00", "dateModified": "2026-09-27T20:55:39+00:00" }, "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "description": "Printed batteries from tree pulp are research, not UK home or EV storage. They may suit sensors and packaging, but full-device biodegradation is unproven.", "author": { "@type": "Person", "@id": "https://kilowatts.uk/authors/david-coleman/#person", "name": "David Coleman", "url": "https://kilowatts.uk/authors/david-coleman/", "sameAs": [ "https://kilowatts.uk/authors/david-coleman/", "https://www.linkedin.com/in/david-martyn-coleman/" ], "jobTitle": "Founder & Renewable Energy Author", "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/images/authors/david-coleman.webp", "width": 400, "height": 400 }, "description": "David Coleman is the founder of kilowatts.uk, a UK-based renewable energy platform. He specialises in solar panels, battery storage, heat pumps, and energy policy, drawing on real installation data and direct industry experience." }, "publisher": { "@id": "https://kilowatts.uk#organization" }, "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/uploads_resolved/images/795/960.webp", "width": 960, "height": 640 }, "datePublished": "2026-09-27T20:55:39+00:00", "dateModified": "2026-09-27T20:55:39+00:00" } } ] }, { "@type": "Person", "@id": "https://kilowatts.uk/authors/david-coleman/#person", "name": "David Coleman", "jobTitle": "Founder & Renewable Energy Author, kilowatts.uk", "worksFor": { "@id": "https://kilowatts.uk#organization" }, "url": "https://kilowatts.uk/authors/david-coleman/", "image": "https://kilowatts.uk/uploads_resolved/images/261/960.webp", "sameAs": [ "https://kilowatts.uk/authors/david-coleman/", "https://www.linkedin.com/in/david-martyn-coleman/" ] }, { "@type": "Article", "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#content", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#webpage", "name": "World’s First Hydrogen-Engine Tanker Completes Voyage—But Was It Really Hydrogen-Only", "url": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/", "description": "Japan’s Kikomaru tanker completed a short hydrogen-engine voyage, but HVO pilot fuel means it was not hydrogen-only. What UK ports should note.", "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "breadcrumb": { "@type": "BreadcrumbList", "@id": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "url": "https://kilowatts.uk/", "item": "https://kilowatts.uk/" }, { "@type": "ListItem", "position": 2, "name": "Resources", "url": "https://kilowatts.uk/resources/", "item": "https://kilowatts.uk/resources/" }, { "@type": "ListItem", "position": 3, "name": "World’s First Hydrogen-Engine Tanker Completes Voyage—But Was It Really Hydrogen-Only", "url": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/", "item": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/" } ] }, "datePublished": "2026-10-05T16:47:28+00:00", "dateModified": "2026-10-05T16:47:28+00:00" }, "inLanguage": "en-GB", "isPartOf": { "@id": "https://kilowatts.uk/#website" }, "headline": "World’s First Hydrogen-Engine Tanker Completes Voyage—But Was It Really Hydrogen-Only", "name": "World’s First Hydrogen-Engine Tanker Completes Voyage—But Was It Really Hydrogen-Only", "description": "Japan’s Kikomaru tanker completed a short hydrogen-engine voyage, but HVO pilot fuel means it was not hydrogen-only. What UK ports should note.", "articleSection": "Resources", "publisher": { "@id": "https://kilowatts.uk#organization" }, "about": [ { "@id": "https://kilowatts.uk/tags/hydrogen-engine-tanker/#entity", "name": "Hydrogen Engine Tanker" }, { "@id": "https://kilowatts.uk/tags/hydrogen-shipping/#entity", "name": "Hydrogen Shipping" }, { "@id": "https://kilowatts.uk/tags/hydrogen-only-claims/#entity", "name": "Hydrogen Only Claims" }, { "@id": "https://kilowatts.uk/tags/hvo-pilot-ignition/#entity", "name": "Hvo Pilot Ignition" }, { "@id": "https://kilowatts.uk/tags/kikomaru-voyage/#entity", "name": "Kikomaru Voyage" }, { "@id": "https://kilowatts.uk/tags/marine-hydrogen-fuel/#entity", "name": "Marine Hydrogen Fuel" }, { "@id": "https://kilowatts.uk/tags/renewable-energy-uk/#entity", "name": "Renewable Energy Uk" }, { "@id": "https://kilowatts.uk/tags/low-carbon-shipping/#entity", "name": "Low Carbon Shipping" }, { "@id": "https://kilowatts.uk/tags/hydrogen-combustion/#entity", "name": "Hydrogen Combustion" }, { "@id": "https://kilowatts.uk/tags/alternative-marine-fuels/#entity", "name": "Alternative Marine Fuels" } ], "keywords": "hydrogen-engine-tanker, hydrogen-shipping, hydrogen-only-claims, hvo-pilot-ignition, kikomaru-voyage, marine-hydrogen-fuel, renewable-energy-uk, low-carbon-shipping, hydrogen-combustion, alternative-marine-fuels", "image": { "@type": "ImageObject", "url": "https://kilowatts.uk/uploads_resolved/images/880/960.webp", "width": 960, "height": 960 }, "potentialAction": { "@type": "ReadAction", "target": "https://kilowatts.uk/resources/worlds-first-hydrogen-engine-tanker-completes-voyagebut-was-it-really-hydrogen-o/" }, "datePublished": "2026-10-05T16:47:28+00:00", "dateModified": "2026-10-05T16:47:28+00:00", "author": { "@type": "Person", "@id": "https://kilowatts.uk/authors/david-coleman/#person", "name": "David Coleman", "url": "https://kilowatts.uk/authors/david-coleman/", "sameAs": [ "https://kilowatts.uk/authors/david-coleman/", "https://www.linkedin.com/in/david-martyn-coleman/" ] } } ] }