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Explore operating assets, construction and proposals across the electricity system. Find the capacity, planning status and evidence behind each project.
Use the map to explore the matching projects. Solid markers show published or mapped points; shaded dashed circles show approximate areas. Cable endpoints are shown separately.
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AC network reinforcement
Highlands / Moray / Aberdeenshire · Scotland
SSEN Transmission
SSEN submitted its overhead-line consent application in October 2025. The proposal strengthens the inland transmission route to Peterhead. A submitted application is distinct from consent or main construction.
Transfer capacity
Isle of Grain ↔ Maasvlakte, Netherlands · United Kingdom
National Grid Ventures / partner operator
BritNed is an operating international electricity connection. Power can move between markets rather than being generated by the cable. Availability, outages and market schedules determine the usable transfer on a particular day.
Transfer capacity
Caithness / Moray · Scotland
SSEN Transmission
The completed HVDC link transfers northern Scottish renewable electricity through the Moray Firth. Its 1.2 GW rating is the link’s transfer capability, rather than energy generated by the cable. It is part of the network into which the Shetland connection integrates.
Transfer capacity
Ireland / France · Ireland
EirGrid / RTE
Irish onshore cable installation and testing were reported complete in May 2026. Celtic connects Ireland directly to France. It is included as a neighbouring-market project relevant to all-island electricity trading; it is not a Great Britain grid connection.
Transfer capacity
East Lothian / County Durham · United Kingdom
SP Energy Networks / National Grid
Onshore construction was announced in February 2025. EGL1 connects the Torness area to Hawthorn Pit over a predominantly subsea route of more than 190 km. It is distinct from EGL2 and does not terminate at Drax.
Transfer capacity
Aberdeenshire / North Yorkshire · United Kingdom
SSEN Transmission / National Grid
EGL2 links Peterhead and Drax through a 505 km HVDC route. Construction is underway following the 2024 approvals. Its converters connect the subsea DC system to the AC transmission networks at each end. It transfers electricity between regions; its rating is not additional generating capacity.
Transfer capacity
Aberdeenshire / Lincolnshire / Norfolk · United Kingdom
SSEN Transmission / National Grid
Major converter and cable contracts were announced in March 2026. Planning and consultation continue. EGL3 and EGL4 share proposed English landfall and cable corridors, with separate converter stations in the Walpole area. Contract awards are not evidence that the complete link is already under construction.
Transfer capacity
Fife / Lincolnshire / Norfolk · United Kingdom
SP Energy Networks / National Grid
Supply-chain agreements were announced in March 2026. Main construction is expected in 2028 subject to consent, with completion scheduled for 2033. The proposed English converter is in West Norfolk; older descriptions of a Lincolnshire endpoint can confuse the cable landfall with the grid connection.
Not yet confirmed
Scotland / Lincolnshire · United Kingdom
SSEN Transmission / National Grid
Second-stage consultation took place from May to July 2026. EGL5 is a further Scotland–England subsea connection proposal, separate from EGL3 and EGL4. The proposed Lincolnshire connection relates to the LCS-B substation within the Grimsby to Walpole scheme.
Component of a parent transmission project; no additional link capacity counted
Peterhead / Boddam, Aberdeenshire · Scotland
SSEN Transmission / National Grid (EGL2)
The Scottish terminal of the 2 GW, 525 kV Peterhead–Drax link is under construction near Boddam. It converts between AC and DC and connects to the Peterhead AC network. Hitachi Energy supplies converter technology with BAM delivering civil works. It is separate from the existing gas-fired Peterhead power station.
Component of a parent transmission project; no additional link capacity counted
Peterhead / Boddam, Aberdeenshire · Scotland
SSEN Transmission / National Grid (EGL2)
EGL2’s Scottish landfall connects its subsea cable to the onshore route serving the Boddam converter. Horizontal directional drilling and cable landing are separate construction packages from the converter buildings. Prysmian is the EGL2 cable supplier; the NKT works at Rattray Head belong to a different link.
Component of a parent transmission project; no additional link capacity counted
Drax / Wren Hall, North Yorkshire · England
SSEN Transmission / National Grid (EGL2)
Wren Hall is the English converter terminal of the 2 GW Peterhead–Drax link, adjacent to the Drax transmission connection. It converts electricity between the subsea DC system and the AC grid. The converter is separate from Drax’s generating units and proposed data centre.
Transfer capacity
Pembrokeshire / Ireland · United Kingdom
Greenlink
Greenlink links the Irish and British electricity markets through subsea and underground cable. The developer’s FAQ records operation from February 2025. Its nominal 500 MW capacity is bidirectional transfer capability, not a constant flow.
Transfer capacity
Kent ↔ northern France · United Kingdom
National Grid Ventures / partner operator
IFA is an operating international electricity connection. Power can move between markets rather than being generated by the cable. Availability, outages and market schedules determine the usable transfer on a particular day.
Transfer capacity
Southern England ↔ Normandy, France · United Kingdom
National Grid Ventures / partner operator
IFA2 is an operating international electricity connection. Power can move between markets rather than being generated by the cable. Availability, outages and market schedules determine the usable transfer on a particular day.
AC network reinforcement
Aberdeenshire / Angus · Scotland
SSEN Transmission
The overhead-line application was submitted in September 2025 and is in the consent process. Government case material records an inquiry. The proposed reinforcement should be distinguished from separate substation work packages and existing network assets.
Maximum export connection
Suffolk / Netherlands · United Kingdom
National Grid Ventures / TenneT
LionLink combines a connection to Dutch offshore wind with electricity exchange between Britain and the Netherlands. Current connection documents distinguish up to 2 GW export from 1.8 GW import. It remains a proposed project, not an operational source of supply.
Transfer capacity
Great Britain / Belgium · United Kingdom
National Grid Ventures
National Grid is refining plans for a new British–Belgian subsea electricity connection. The earlier Suffolk connection agreement was removed; that should not be reported as the cancellation of all Nautilus development. Current route and converter options require further confirmation.
Transfer capacity
Kent ↔ Belgium · United Kingdom
National Grid Ventures / partner operator
Nemo Link is an operating international electricity connection. Power can move between markets rather than being generated by the cable. Availability, outages and market schedules determine the usable transfer on a particular day.
Component of a parent transmission project; no additional link capacity counted
Netherton / Longside / Peterhead, Aberdeenshire · Scotland
SSEN Transmission
The two AC substations at Netherton Hub support generation and storage connections and onward transmission. They form a different infrastructure package from the site’s HVDC converters. Shared site civil works are underway; detailed electrical approvals and energisation follow separately.
Component of a parent transmission project; no additional link capacity counted
Netherton / Longside / Peterhead, Aberdeenshire · Scotland
SSEN Transmission
A separate converter at Netherton Hub is proposed for the 2 GW EGL3 link to West Norfolk. It is distinct from the Spittal–Peterhead converter on the same hub site and from EGL2’s converter at Boddam. The hub has entered civil construction, while EGL3’s marine licence and detailed delivery stages remain separate.
Component of a parent transmission project; no additional link capacity counted
Netherton / Longside / Peterhead, Aberdeenshire · Scotland
SSEN Transmission
This converter is planned within Netherton Hub near Longside as the southern terminal of the 2 GW, 525 kV Spittal–Peterhead link. The cable comes ashore near Crimond at Rattray Head. Hub civil works are underway; this record does not imply the converter is installed or energised.
Multiple substations and converters
Longside / Flushing / Peterhead, Aberdeenshire · Scotland
SSEN Transmission
Main hub construction is underway near Longside, west of Peterhead. The development comprises 400 kV and 132 kV substations, separate Spittal–Peterhead and EGL3 HVDC converter stations, a transmission hall identified for EGL5, and an operations and spares base. Shared site earthworks do not mean that every converter or cable is already operational.
Transfer capacity
Kent / Germany · United Kingdom
NeuConnect
Converter fit-out was reported in September 2026. NeuConnect is the first direct electricity connection between Great Britain and Germany, with approximately 725 km of land and subsea cables. It supports imports or exports according to system conditions.
Transfer capacity
Blyth, Northumberland ↔ Kvilldal, Norway · United Kingdom
National Grid Ventures / partner operator
North Sea Link is an operating international electricity connection. Power can move between markets rather than being generated by the cable. Availability, outages and market schedules determine the usable transfer on a particular day.
Transfer capacity
Orkney / Caithness · Scotland
SSEN Transmission
Underground cable installation began in September 2026. The scheme includes Finstown substation, a 14 km land cable to Warebeth and a 53 km subsea cable to Dounreay. It creates Orkney’s first connection to the mainland transmission network.
AC transformer replacement and network reinforcement; no extra generating capacity
Peterhead / Boddam, Aberdeenshire · Scotland
SSEN Transmission
SSEN reports first-phase construction underway in July 2026, including platform earthworks, drainage and a SuDS pond. Balfour Beatty is carrying out the works. Construction is expected to finish by 2028, with commissioning and energisation by 2030. This is separate from the EGL2 HVDC converter and existing power station.
Transfer rating not verified
Suffolk / Kent · England
National Grid
A 138 km primarily offshore link is awaiting its development-consent decision, expected by 30 October 2026. Surveys and archaeological works have separate permissions. These preparatory activities do not establish consent for the main link, whose construction programme is conditional on approval.
Transfer capacity
Shetland / Caithness · Scotland
SSEN Transmission
The Shetland connection was energised in 2024. Its 260 km subsea link integrates with the Caithness–Moray system. It connects island renewable generation, including the Viking wind farm, while providing a connection for island electricity supply.
AC network reinforcement
Caithness / Sutherland / Highlands · Scotland
SSEN Transmission
The proposed 400 kV route is undergoing the consent process. The government’s appeal and inquiry record identifies inquiry, hearing and written procedures in 2026. This is not reported here as a consented or operating line.
Transfer capacity
Caithness / Rattray Head / Crimond / Longside / Peterhead · Scotland
SSEN Transmission; cable contractor NKT
Cable construction is underway. The approximately 203 km link includes a 166 km subsea section between Sinclair’s Bay and Rattray Head. It connects the Banniskirk and Netherton hubs and supports movement of northern Scottish generation toward demand centres.
Component of a parent transmission project; no additional link capacity counted
Rattray Head / Crimond / Peterhead, Aberdeenshire · Scotland
SSEN Transmission
The Rattray Head landfall north of Peterhead serves the 2 GW Spittal–Peterhead cable, connecting onward to Netherton near Longside. NKT is the cable contractor; Nicol of Skene carries out local works. SSEN confirmed 1.7 km landfall HDD drilling underway in July 2026. This is distinct from EGL2’s Sandford Bay landfall.
Transfer capacity
Bicker Fen, Lincolnshire ↔ Revsing, Denmark · United Kingdom
National Grid Ventures / partner operator
Viking Link is an operating international electricity connection. Power can move between markets rather than being generated by the cable. Availability, outages and market schedules determine the usable transfer on a particular day.
Published transfer capacity
Ayrshire / North Wales · United Kingdom
SP Energy Networks / National Grid
The operating Western Link connects Hunterston to Flintshire Bridge. Its route is approximately 420 km, including 385 km subsea. It carries electricity between Scotland and Wales and is a separate asset from the proposed Western Link 2.
Transfer capacity
Lewis / Highlands · Scotland
SSEN Transmission
Mainland cable preparation and associated early works are underway in 2026. The link is designed to connect Lewis to the mainland and unlock island renewable generation. This 1.8 GW scheme supersedes the earlier 600 MW proposal. Work packages are at different stages.
Rating requires confirmation
Ayrshire / Gwynedd · United Kingdom
SP Energy Networks / National Grid
Western Link 2 is a proposed predominantly subsea connection from Ayrshire to the Gwynedd coast. A new converter would connect to Pentir substation. Public consultation took place in 2026. The project is separate from the operating Western Link.
National figures from the Carbon Intensity API. These do not measure an individual project’s output, cable flow or data-centre electricity use.
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