Legend Example

25:["$","title",null,{"children":"Floating Wind Farms - Last Port of Call | Vekta Group | Observable"}] 49:T594,Technological advancements in floating offshore wind (FLOW) power mean that the energy capacity of wind turbines is increasing, along with their size. For example, the world's first 20 MW floating wind turbine was installed earlier this year.

Ports are used at many points in FLOW project supply chains, including construction and installation. Renewable UK's FLOW Taskforce has identified three types of ports that are crucial to the project process: concrete manufacturing ports, steel assembly ports, and integration ports.

This week will focus on integration ports, and the infrastructure required for projects of increasing capacity. Renewable UK has defined eight requirements for integration ports, with different category thresholds for 17 MW and 20 MW turbines respectively. Five of these requirements have been analysed to detect port suitability for FLOW integration, which are as follows: channel depth, channel width, integration water depth, integration quay length and land use area. These characteristics are needed to support the foundations of FLOW turbines, which currently have areas of 100 m2, and depths up to 14 m.

Data about global port characteristics has been taken from the World Port Index (WPI) and Google Earth. Of the 3000+ global ports, only 13 have the required infrastructure to support 17 MW turbines. These 13 ports are displayed on the interactive globe below. 4a:T728,Plot.plot({ projection: { type: "orthographic", rotate: [longitude, -25], zoom: viewof zoom }, style: "overflow: visible;", marks: [ Plot.geo(land, { fill: "green", fillOpacity: 0.4 }), Plot.sphere(), Plot.dot(data, { x: "latitude", y: "longitude", r: (d) => { const sizes = [80, 100, 110, 130, 400, 1000]; const ratingIndex = d["rating"] >= 0 && d["rating"] <= 5 ? d["rating"] : 0; return sizes[ratingIndex]; }, stroke: "red", fill: "red", fillOpacity: 0.2, title: (d) => `${d["mainPort"] || "Unknown"}, Country: ${d["country"]}, Rating: ${d["rating"]}`, tip: true }), // Create legend text for ratings outside the globe Plot.text(["Rating: 0", "Rating: 1", "Rating: 2", "Rating: 3", "Rating: 4", "Rating: 5"], { x: [-7.2, -7.2, -7.2, -7, -7.1, -7.2], // Positioning the legend text outside the globe y: [-28, -22.5, -17.5, -12, -6.5, -2], // Vertical spacing for each rating fontSize: 12, fontWeight: "bold", align: "left", // Align text to the left baseline: "middle" }), // Add circles representing the sizes corresponding to each rating Plot.circle([1, 1, 1, 1, 1, 1], { x: [1.6, 1.4, 1.4, 1.3, 1.2, 1.1], // Positioning circles to the right of the text y: [-25, -20, -15, -10, -5, 0], // Corresponding y positions for each circle r: [80, 100, 110, 130, 400, 1000], // Circle sizes for each rating fill: "red", stroke: "red", fillOpacity: 0.3 // Set the opacity to 0.5 for the legend circles }) ], transforms: [ Plot.transform('scale', [zoom, zoom]), // Scale the entire plot to zoom Plot.transform('translate', [150 - 150 * zoom, 150 - 150 * zoom]) // Translate to simulate zoom effect ] }); 4b:T756, Legend Example

Port Attributes

Minimum Requirement for 20MW

4c:Tbd2,Plot.plot({ width: Math.max(width, 600), marginBottom: 10, marginLeft: 15, projection: { type: "azimuthal-equidistant", rotate: [0, -90], domain: d3.geoCircle().center([0, 90]).radius(1.22)() }, facet: { data: points, x: "fx", y: "fy", axis: null }, marks: [ // Facet name Plot.text(points, Plot.selectFirst({ text: "name", frameAnchor: "bottom", fontWeight: "400", fontSize: 14 })), // Grey discs Plot.geo([1.0, 0.8, 0.6, 0.4, 0.2], { geometry: (r) => d3.geoCircle().center([0, 90]).radius(r)(), stroke: "black", fill: "black", strokeOpacity: 0.2, fillOpacity: 0.02, strokeWidth: 0.5 }), // White axes Plot.link(longitude2.domain(), { x1: longitude2, y1: 90 - 0.8, x2: 0, y2: 90, stroke: "white", strokeOpacity: 0.5, strokeWidth: 2.5 }), // Tick labels for percentiles Plot.text([0.4, 0.6, 0.8], { fx: 0, fy: 0, x: 180, y: (d) => 90 - d, dx: 2, textAnchor: "start", text: (d) => (d == 0.8 ? `${100 * d}th percentile` : `${100 * d}th`), fill: "currentColor", stroke: "white", fontSize: 12 }), // Axes labels for first chart Plot.text(longitude2.domain(), { fx: 0, fy: 0, x: longitude2, y: 90 - 1.07, text: Plot.identity, lineWidth: 5, fontSize: 12, }), // Axes labels, initials Plot.text(longitude2.domain(), { fx: 0, fy: 0, facet: "exclude", x: longitude2, y: 90 - 1.09, text: (d) => d[0], lineWidth: 5 }), // Adds blue linking lines and blue opacity Plot.area(points, { x1: ({ key }) => longitude2(key), y1: ({ value }) => 90 - value, x2: 0, y2: 90, fill: (d) => "#4269D0", fillOpacity: 0.25, stroke: (d) => "#4269D0", curve: "cardinal-closed" }), // Ensure "Minimum Requirement for 20MW" is included separately Plot.area( points.filter((d) => d.name === "Minimum Requirement for 20MW"), { x1: ({ key }) => longitude2(key), y1: ({ value }) => 90 - value, x2: 0, y2: 90, fill: "red", fillOpacity: 0.25, stroke: "red", curve: "cardinal-closed", } ), // Points (Ensure "Minimum Requirement for 20MW" is included) Plot.dot(points, { x: ({ key }) => longitude2(key), y: ({ value }) => 90 - value, fill: (d) => d.name === "Minimum Requirement for 20MW" ? "red" : "#4269D0", stroke: "white" }), // Interactive labels Plot.text( points, Plot.pointer({ x: ({ key }) => longitude2(key), y: ({ value }) => 90 - value, text: (d) => `${d.raw}\n(${Math.round(100 * d.value)}%)`, textAnchor: "start", dx: 4, fill: "currentColor", stroke: "white", maxRadius: 10, fontSize: 12 }) ) ] }) 4d:Ta81,data = [ { mainPort: "Port Sudan", country: "Sudan", entranceWidth: 258, channelDepth: 25.6, integrationQuayDepth: 16, landiseArea: 23, landiseLength: 415, latitude: 37.233333, longitude: 19.6, rating: 1 }, { mainPort: "Hunterston", country: "United Kingdom", entranceWidth: 900, channelDepth: 23.2, integrationQuayDepth: 23.2, landiseArea: 38, landiseLength: 430, latitude: -4.883333, longitude: 55.75, rating: 4 }, { mainPort: "Muuga-Port of Tallin", country: "Estonia", entranceWidth: 380, channelDepth: 16, integrationQuayDepth: 17.2, landiseArea: 30, landiseLength: 550, latitude: 24.966693, longitude: 59.500042, rating: 4 }, { mainPort: "Gijon", country: "Spain", entranceWidth: 2700, channelDepth: 18.6, integrationQuayDepth: 20.1, landiseArea: 112, landiseLength: 688, latitude: -5.666667, longitude: 43.55, rating: 5 }, { mainPort: "Vigo", country: "Spain", entranceWidth: 2700, channelDepth: 23.2, integrationQuayDepth: 17.1, landiseArea: 74, landiseLength: 700, latitude: -8.716667, longitude: 42.233333, rating: 5 }, { mainPort: "North Ain Sukhna Port", country: "Egypt", entranceWidth: 300, channelDepth: 17, integrationQuayDepth: 17, landiseArea: 22, landiseLength: 800, latitude: 32.366667, longitude: 29.65, rating: 4 }, { mainPort: "Khawr Fakkan", country: "United Arab Emirates", entranceWidth: 300, channelDepth: 16, integrationQuayDepth: 16, landiseArea: 21.7, landiseLength: 862, latitude: 56.368889, longitude: 25.362778, rating: 2 }, { mainPort: "Sillamae", country: "Estonia", entranceWidth: 600, channelDepth: 16.3, integrationQuayDepth: 15.3, landiseArea: 80, landiseLength: 908, latitude: 27.73945, longitude: 59.42612, rating: 3 }, { mainPort: "Al Aqabah", country: "Jordan", entranceWidth: 5000, channelDepth: 23.2, integrationQuayDepth: 15.5, landiseArea: 24, landiseLength: 1000, latitude: 35, longitude: 29.516667, rating: 3 }, { mainPort: "Tarragona", country: "Spain", entranceWidth: 440, channelDepth: 20.1, integrationQuayDepth: 20.1, landiseArea: 49, landiseLength: 1030, latitude: 1.233333, longitude: 41.1, rating: 5 }, { mainPort: "Gioia Tauro", country: "Italy", entranceWidth: 230, channelDepth: 17.1, integrationQuayDepth: 15.5, landiseArea: 32, landiseLength: 1600, latitude: 15.89, longitude: 38.444, rating: 3 }, { mainPort: "Port Of Sohar", country: "Oman", entranceWidth: 260, channelDepth: 18.5, integrationQuayDepth: 18, landiseArea: 75, landiseLength: 1900, latitude: 56.633333, longitude: 24.516667, rating: 5 }, { mainPort: "Duqm", country: "Oman", entranceWidth: 700, channelDepth: 19, integrationQuayDepth: 18, landiseArea: 76, landiseLength: 2450, latitude: 57.716909, longitude: 19.673253, rating: 5 } ]; 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Group"}},"type":"notebook","body":{"titling":"auto","title":"Floating Wind Farms - Last Port of Call","cells":[{"id":0,"value":"# Floating Wind Farms - Last Port of Call","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":5,"value":"$49","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":7,"value":"## Where are they?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":22,"value":"There are two clusters of ports ready for 17 MW FLOW turbine integration, surrounding mainland Europe and the Middle East. Each of the 13 ports suitable for supporting 17 MW turbines are ranked for their suitability to support 20 MW turbines. For example, ports that meet one of the requirements are given a rank of 1, and represented as the smallest points on the globe. \n

\nFive of the 13 ports suitable for supporting 17 MW turbines were also found to be suitable for 20 MW turbines. Three of these ports are located in Spain, and the other two in Oman. These countries are both in strategic geographic locations, connecting global trade routes between continents. The fact that only five ports are ready for 20 MW FLOW turbine integration suggests an infrastructure gap that needs to be addressed for FLOW projects to be constructed widely. ","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":198,"value":"viewof longitude = Inputs.range([-180, 180], {label: \"Longitude\", step: 1, value: -20})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":188,"value":"$4a","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":19,"value":"## Futureproofing - Where do they stand?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":24,"value":"The set of charts below aims to visually represent where port infrastructure needs to be improved for FLOW turbine integration. Each port's infrastructure values are shown with the blue polygon, and the minimum level required for 20 MW FLOW turbine integration in red. \n

\nThere is a mix of infrastructure suitability profiles between ports. Even ports with low suitability ranks are not drastically below the thresholds. Some ports have very similar profiles, such as Port of Sohar and Duqm, which are both located in Oman. This could suggest that certain countries tend to build ports differently to others. \n

\nFurther work is required to assess the readiness of other ports, globally. Greater context regarding the wider state of port infrastructure would allow the identification of barriers to development, with follow up roadmaps suggested to overcome the identified barriers. This is crucial for increasing the energy capacity of future offshore wind projects. ","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":565,"value":"$4b","pinned":false,"hidden":false,"mode":"html","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":436,"value":"$4c","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":9,"value":"
\n## Appendix","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":631,"value":"For more information on Renewable UK's FLOW Taskforce, follow this link: https://www.renewableuk.com/media/ezvmvea3/industry-roadmap-2040-building-uk-port-infrastructure-to-unlock-the-floating-wind-opportunity_march-2023.pdf ","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":112,"value":"### Data","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":154,"value":"$4d","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":11,"value":"### Where are they?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":422,"value":"world = FileAttachment(\"countries-110m.json\").json()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":420,"value":"land = topojson.feature(world, world.objects.land)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":604,"value":"viewof zoom = Inputs.range([0.5, 2], { label: \"Zoom\", step: 0.1, value: 1 }) ","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":13,"value":"### Futureproofing - Where do they stand?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":438,"value":"globeData1 = await FileAttachment(\"Globe Data@2.csv\").csv({typed: \"auto\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"globeData1","database":"$undefined"},{"id":442,"value":"cars = FileAttachment(\"Globe Data@2.csv\").csv({typed: true})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":429,"value":"points = {\n const points = d3.sort(cars, d => d.Price).flatMap(({ name, ...values }, i) =>\n Object.entries(values).map(([key, raw]) => ({\n name,\n key,\n raw,\n fx: (1 + i) % 4, // trellis (facets); we leave facet <0,0> empty for the legend\n fy: Math.floor((1 + i) / 4)\n }))\n );\n for (const [, g] of d3.group(points, d => d.key)) {\n const m = d3.max(g, d => d.raw);\n for (const d of g) d.value = d.raw / m;\n }\n return points;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":449,"value":"longitude2 = d3.scalePoint(new Set(Plot.valueof(points, \"key\")), [180, -180]).padding(0.5).align(1)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":633,"value":"html``","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W4e","stdlib":"1"}} 24:null