Elia Group Brand Guidelines: Brussels Grid Operator of 2001, 50Hertz & an Energy Island

Unbundling the Belgian grid.

Elia was born of the opening of Europe’s electricity market. The European directive 96/92/EC on liberalisation was written into Belgian law by the Electricity Act of 29 April 1999, and on 28 June 2001 Elia was created by merging the CPTE, the body that coordinated the generation and transmission of electrical energy, with the Electrabel unit that ran the 30 to 380 kV grid, French Wikipedia says. On 17 September 2002 it was appointed the federal transmission system operator under the 1999 act, English Wikipedia says.

The Belgian company owns the country’s 150 to 380 kV grid and almost 94% of its 30 to 70 kV grid, according to English Wikipedia; Dutch Wikipedia puts the network at about 8,400 km, some 2,750 km of it underground, and the head office is in Brussels. By law it is the sole manager of the Belgian grid at 30 kV and above. Its tariffs are set by the federal regulator, the CREG, while regional regulators in Flanders, Wallonia and Brussels and the EU agency ACER oversee other parts of its work, French Wikipedia says. Both Wikipedias describe its tasks in three parts: maintaining and developing the high-voltage infrastructure, running the electrical system around the clock, including imports and exports with neighbouring countries, and facilitating the electricity market at Belgian and European level.

The group went public early. Elia was listed on Euronext Brussels on 20 June 2005, English Wikipedia says, and French Wikipedia records it in the BEL20 index from March 2012 to March 2017 and again since March 2021. Its largest shareholder is Publi-T, a cooperative representing Belgian municipalities and intermunicipal companies, alongside Katoen Natie, Interfin, Publipart and Belfius Insurance, with the rest of the shares in free float, English Wikipedia says.

Markets, links and an island.

Elia was a market builder as well as a grid owner. On 8 July 2005 it set up Belpex, the Belgian spot power exchange, English Wikipedia says; the same encyclopaedia’s TenneT article names the Dutch and French operators TenneT and RTE and the APX and Powernext exchanges as fellow founders. When Belpex combined with APX-ENDEX, announced in April 2010, Elia received a 20% stake in the enlarged exchange, Dutch Wikipedia says, and Belpex was later folded into the Paris-based EPEX SPOT. Elia also contributes to the European Market Coupling Company and takes part in ENTSO-E, the European network of transmission system operators formed in 2008. In 2014 it founded Elia Grid International, a consulting and engineering arm.

Its cross-border links have grown with the market. Dutch Wikipedia says the ALEGrO link, a 90 km underground direct-current cable between Aachen and Liège with a capacity of 1,000 MW, was completed in November 2020 as the first power connection between Germany and Belgium. Belgium usually consumes more electricity than it produces, the same article says, and its main trading partners are the Netherlands and France.

The group’s largest current project lies at sea. Princess Elisabeth Island, named after Princess Elisabeth, Duchess of Brabant, is an artificial energy island being built for Elia Transmission Belgium about 45 km off the coast in the Belgian North Sea, to connect the country’s second offshore wind zone and to open the option of a future link with the United Kingdom. The contractor consortium TM Edison, formed by DEME and Jan De Nul, installed the 23rd and final caisson in August 2026, Hellenic Shipping News reported on 22 August 2026, carrying Jan De Nul’s announcement; each concrete caisson weighs about 22,000 tonnes and was built in Vlissingen. Cable connections to the mainland are planned for 2027 and 2028, and the island’s electrical installation from 2029. In July 2026 the Belgian government set 1 October 2031 as the deadline for commissioning the island’s first phase, offshoreWIND.biz reported, after the original tender for the first wind site in the zone was cancelled in July 2025.

How grid operators present themselves.

Electricity transmission operators sell nothing a customer can hold, so their identities lean on the network itself. Most present a short corporate name set in a clean sans-serif wordmark, often with a small symbol or a single letter given weight, and keep the type plain enough to sit on a substation gate, a hard hat or a regulatory filing without change. Blue, green and yellow are the familiar colours of the category, read as sky, landscape and current.

Photography does much of the work. Pylons are shown in fields, dunes and mountain valleys, substations are framed against open sky, and cable ships, converter platforms and offshore islands stand in for the reach of a grid that crosses borders. People appear mostly as engineers and line crews in protective clothing, photographed at work rather than posed.

The websites follow a shared pattern. A grid map and an interconnector page show where lines run and which countries they link, and a network development plan sets out future routes and upgrades as the operator dates and describes them. Many publish real-time system data, with dashboards for load, generation, cross-border flows and balancing prices, and open consultation pages where residents and landowners can comment on planned lines.

The last regular section is recruitment. Careers pages address electrical engineers, technicians, data specialists and graduates, and present grid building as long-term public work. For a designer, the category is a study in restraint: a calm wordmark, a limited palette and a library of landscape, map and data imagery carry an identity that has to be trusted more than it has to be noticed.

A Belgian group with a Berlin arm.

Elia’s step into Germany came in 2010. On 12 March that year Elia and the Australian infrastructure investor Industry Funds Management, now IFM Investors, reached agreement with Vattenfall to buy its German transmission business, then called Vattenfall Europe Transmission. The European Commission approved the deal on 10 May 2010, English Wikipedia says, and Dutch Wikipedia dates completion to 19 May 2010, with Elia holding 60% and IFM 40%. Renamed 50Hertz Transmission, the business is one of Germany’s four transmission system operators. It is based in Berlin and runs the 220 and 380 kV grid in eastern Germany and the area around Hamburg; Dutch Wikipedia notes that Elia took over its management at the time of the purchase.

The stake rose in 2018. On 23 March 2018 Elia exercised a pre-emption right to raise its holding in Eurogrid, the holding company of 50Hertz, from 60% to 80%; later that year the German state bank KfW, acting for the federal government, took the remaining 20%, replacing IFM as a shareholder, English Wikipedia says. Dutch Wikipedia dates the KfW purchase to July 2018. The Belgian grid business now operates as Elia Transmission Belgium, the company named as client for the energy island, while Dutch Wikipedia describes Elia Group as the listed company above it.

For a design guide, Elia Group shows how a two-country grid operator presents itself: a short, plain name over two national grid companies, and work shown as cable routes, maps and an island under construction rather than as products. Compare TenneT, another operator running grids in two countries and a Belpex co-founder, and RTE, another Belpex founder. For this guide we use a Brussels slate, dune sand and North Sea teal with a sans, an unofficial interpretation; no product or logo is reproduced.

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