Saudi-Egypt HVDC interconnection · 3,000 MW between two non-coincident peaks
Where it stands: EPC contracts signed October 2021; converter stations, overhead lines and the Gulf of Aqaba crossing under construction with staged energisation planned
Construction contracts signed in October 2021 commit Saudi Arabia and Egypt to the region's first large high-voltage direct-current link, a roughly 3,000 MW bidirectional interconnector with converter stations in Medina and Tabuk on the Saudi side and Badr on the Egyptian side, designed to trade reserve and energy between two systems whose peaks fall at different times of day and year.
The problem
Saudi Arabia and Egypt both build generation for a summer air-conditioning peak, but the peaks are not coincident: Egypt's system peaks earlier in the evening and its winter profile differs from the Saudi one, so each country carries reserve capacity that the other does not need at the same moment. Without a link, both must build for their own worst hour. The Gulf Cooperation Council Interconnection Authority already ties the Saudi grid to its Gulf neighbours, but the GCC link is an alternating-current tie sized mainly for emergency support rather than for large commercial energy trade, and there was no connection at all to the much larger North African and Levantine systems. Saudi Arabia also faced the prospect of a large midday solar surplus from the National Renewable Energy Program with no export outlet, while Egypt was building its own solar and wind fleet and needed firm imports at its evening peak. The two systems are also at different frequencies in practice and need controllable power flow, which is why an AC tie was not the answer.
What it does
In October 2021 the two governments and their transmission companies signed the engineering, procurement and construction contracts for the Saudi-Egypt electrical interconnection: a bidirectional high-voltage direct-current scheme rated at roughly 3,000 MW, built around three converter stations (in the Medina and Tabuk regions in Saudi Arabia and at Badr, east of Cairo, in Egypt) connected by overhead lines and a submarine cable crossing the Gulf of Aqaba. The Saudi side is delivered by National Grid SA under the restructured sector, the Egyptian side by the Egyptian Electricity Transmission Company, with the converter and cable packages awarded to international HVDC suppliers and regional civil contractors. The project was conceived to be delivered in stages, with a first tranche of capacity energised ahead of full rating, and it is governed by an intergovernmental framework plus commercial arrangements between the two transmission entities that set the terms on which energy and reserve are exchanged. Total project cost has been put at around US$1.8 billion, split between the two sides. Commissioning has slipped from the original target: the first stage was expected in the mid-2020s, and the current expectation is energisation in the second half of the decade.
Market effect
A 3,000 MW controllable link is roughly the size of two large combined-cycle plants and is large enough to change dispatch on both sides. For Saudi Arabia it creates the first real export outlet for surplus solar energy in the middle of the day and a source of import during the extreme summer evening ramp, which reduces the firm capacity both systems must hold and defers thermal build. For Egypt it is a firm-capacity lifeline at the evening peak and, in the other direction, an outlet for its own surplus, which strengthens the case for the Egyptian renewable pipeline and for Egypt's ambitions as a transit point toward Europe through the Mediterranean cables. Because the tie is HVDC, flow is scheduled rather than determined by impedance, so the commercial arrangements between National Grid SA and the Egyptian transmission company decide who captures the value; the absence of a wholesale spot market on the Saudi side means the gain accrues to the state entities rather than to merchant traders. The strategic reading is that this is the first physical step toward an Arab common electricity market linking the GCC grid, Egypt, Jordan and the Levant, and eventually to Europe, which is why lenders and equipment suppliers treat it as a template rather than a one-off.
Key numbers
- Rated capacity
- About 3,000 MW, bidirectional HVDC
- Converter stations
- Medina and Tabuk regions (Saudi Arabia) and Badr (Egypt)
- Contracts signed
- October 2021
- Reported total cost
- About US$1.8 billion, shared between the two countries
Who gains and who pays
- National Grid SA (obligation): Builds and operates the Saudi converter stations and lines and holds the trading interface.
- Egyptian Electricity Transmission Company (gains): Gains firm import capability at the evening peak and an export outlet for surplus.
- Saudi renewable generators (gains): An export path for midday solar surplus that would otherwise be curtailed.
- Thermal generators in both systems (costs): Shared reserve reduces the firm capacity each country must build and pay for.
- HVDC equipment suppliers and cable contractors (gains): Converter, line and submarine cable packages worth a substantial share of the project cost.
- GCC Interconnection Authority and neighbouring systems (mixed): A larger interconnected footprint, but also competition for the same trading value.
Implementation
Delivery sits with the two transmission companies and their EPC contractors. The critical path runs through the converter stations, the overhead line corridors across desert terrain and the submarine crossing of the Gulf of Aqaba, and the project has been staged so that a first tranche of transfer capability can be commissioned before the full rating. Beyond the physical works, the commercial arrangements matter as much: scheduling rules, loss allocation, reserve-sharing terms and settlement between National Grid SA and the Egyptian transmission company determine whether the link is used as an emergency tie or as a genuine trading interface, and those documents are not public. Schedule has slipped repeatedly against the original mid-decade target. Because National Grid SA's site did not resolve from this environment and the Egyptian counterpart publishes mainly in Arabic, the capacity rating, the cost split, the staging plan and the current commissioning date should all be confirmed against ngrid.sa and the Egyptian Ministry of Electricity before being relied on.
Concerns
- Repeated schedule slippage against the original mid-decade commissioning target
- Commercial and scheduling arrangements between the two transmission entities are not public
- Currency and payment risk on the Egyptian side of any energy trade
- Submarine crossing of the Gulf of Aqaba is the highest-risk construction package
- Neither country has a wholesale market, so price discovery on the link is administrative
- Political dependence of cross-border flows on the bilateral relationship
Dates to watch
- 2027: Expected energisation window for the first stage of transfer capability
- 2028: Full 3,000 MW rating and start of routine commercial exchange
Sources
- National Grid SA: Saudi-Egypt electrical interconnection project, National Grid SA (official text)
- Egyptian Electric Utility and Consumer Protection Regulatory Agency, EgyptERA
- Egyptian Electricity Holding Company, Egyptian Electricity Holding Company
- Saudi Arabia unified national platform: energy infrastructure, Government of Saudi Arabia
Checked against sources on .