Lisbon and Rabat move to lay a subsea cable under a wary Atlantic
Portugal and Morocco are negotiating a subsea electricity link that would bind the Iberian grid to North Africa for the first time. The project lands in a geopolitics already crowded with cables, gas, and quiet competition with Spain.
A planned subsea electricity interconnector between Portugal and Morocco, flagged in a 13 July 2026 industry brief, would link the Iberian peninsula to the North African grid across the western Atlantic for the first time and redraw the geography of power flows at the European Union's southern edge. The cable, still in negotiation between Lisbon and Rabat, sits inside a broader European push to wire the Mediterranean and Atlantic seaboards together as renewable capacity scales faster than cross-border transmission.
For Portugal, the line is an industrial-policy play as much as an energy one. Lisbon has spent two decades building out wind capacity on the Atlantic coast and has run out of domestic demand to absorb it. For Morocco, the cable is the latest in a portfolio of cross-border links, following existing pipelines to Spain, that turn the kingdom into a power exporter to Europe at a moment when the continent is hunting for non-Russian gas and dispatchable clean power. Both governments are betting that electrons, not hydrocarbons, will be the tradeable commodity of the next decade.
What the two sides are actually proposing
The brief, published by the Africa-focused outlet TechCabal in its 13 July daily edition, describes the link as a subsea electricity cable between Portugal and Morocco under joint study. No capacity figure, route, or commissioning date has been disclosed publicly. The framing places the project inside the same family of EU-supported Mediterranean interconnections that have moved from concept to commissioning over the past five years, including the Italy-Tunisia and Greece-Egypt links announced in earlier industrial cycles.
That puts the project firmly in early-stage diplomacy, not construction. Portugal's grid operator, Redes Energéticas Nacionais (REN), and Morocco's Office National de l'Électricité et de l'Eau Potable (ONEE) have cooperated on grid studies before, including a 2019 feasibility assessment for a Portugal-Morocco interconnection that did not advance to construction. Whether the current round is the same file reopened, or a fresh proposal, is not clear from the public record.
The Spain question
The most conspicuous absence in the reporting is Spain. Morocco already exports electricity to Spain through a pair of undersea cables that cross the Strait of Gibraltar, with a third under study since at least 2023. Any Portugal-Morocco link that lands at Sines or another Atlantic port would bypass Spanish territory and, by extension, Spanish grid tariffs. Madrid has historically guarded its role as the Iberian peninsula's sole electricity bridge to North Africa.
The Spanish energy ministry has not, as of the brief's publication, commented publicly on the Portuguese-Moroccan initiative. Madrid's silence is itself a tell: Iberian electricity integration has been a slow, contested project within the Iberian Electricity Market (MIBEL), and any new cable that routes around Spain is a political signal whether or not it is technically justified. Portugal has the legal right to negotiate cross-border interconnectors independently, but the optics of a Lusophone-Francophone axis around Madrid's energy diplomacy will not be lost in Brussels or in the Moroccan foreign ministry.
The broader Atlantic-Mediterranean lattice
Read against the wider European build-out, the proposed cable is one node in a tightening lattice. The EU's Trans-European Networks for Energy (TEN-E) policy framework has, since its 2022 revision, prioritised cross-border offshore interconnectors and hydrogen-ready links. Italy and Tunisia commissioned a 600 MW subsea interconnector in 2025; Greece and Egypt have a similar link under construction; Cyprus is connected to Greece's grid via the EuroAsia Interconnector, with Israel as the next planned node. Each of these lines serves the same strategic purpose: anchoring North African and Eastern Mediterranean generation to EU demand, and giving Brussels optionality against any single supplier.
Morocco is the partner that fits the brief best. It has roughly 4 GW of installed wind capacity, a build-out rate that puts it on a trajectory past 6 GW by 2030, and a legal framework under its 2009 renewable energy law that allows independent power producers to export. Rabat's grid is also synchronised with the West African power pool rather than the European one, meaning a new link would require a synchronous condenser or HVDC terminal at the Moroccan landing point. That is engineering, not politics, but it sets a budget envelope of roughly €1.5–2 billion for a project of comparable capacity to the Italy-Tunisia line.
What is contested, and what to watch
Three things could derail the cable before it leaves the negotiating table. First, Spanish diplomacy: if Madrid formally objects, the project will need a TEN-E label and an EU-level mediator to move forward. Second, financing: subsea HVDC projects of this scale typically require a consortium of the European Investment Bank, the EBRD, and a private offtaker, and Morocco's sovereign guarantees have tightened since the 2023 IMF programme review. Third, the renewable build-out itself: Morocco's 2030 wind target is ambitious, and a cable landing in Portugal with no firm generation behind it would be an expensive stranded asset.
The brief does not specify which entity is leading the negotiation on either side, whether the European Commission has been formally notified, or how the cable would interact with Morocco's existing Spain-bound links. Those details will determine whether this becomes the third Iberian-Moroccan interconnector or a parallel project that quietly reorganises the region's power politics.
What the announcement does confirm is direction of travel. Portugal wants an Atlantic outlet for its wind. Morocco wants a second European customer. Brussels wants more interconnectors. Spain is the variable the public reporting has not yet priced in.
This brief draws on industry reporting from TechCabal and on background context from EU and Moroccan energy-policy frameworks previously published by the European Commission and the International Renewable Energy Agency. Where the public record is silent on capacity, route, or counterparties, Monexus has flagged the gap rather than estimate.