International Traineeship

ID: 3911

Type: Internship

Category: Infrastructure

Company Name: TenneT

Location: Arnhem - Arnhem - Netherlands

Education Level: senior

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Job Description

Functieomschrijving

The International ship

Are you a recent graduate excited to start your career in the rapidly growing energy sector? TenneT's 18-month ship offers you the opportunity to play a key role in the energy transition.

The International ship

Your ship at TenneT

As a at TenneT, you'll be in an excellent position to contribute to one of the key companies driving the energy transition. Over the course of 1.5 years, you'll discover your talents while working on real and current challenges. Gain hands-on experience across different departments during our ship. With tailored development plans, job rotations, and innovative projects, you'll learn how to combine responsibility with growth in a company that plays a vital role in Europe's energy landscape.

Choose your own assignment
Work full-time at TenneT
Work in a hybrid setup across different locations

The vacancies for the ship are now closed.

The five divisions of TenneT

Building the energy future

TenneT's field of work is vast. That's why, in our International ship, you can explore explore aspects of our company, each with their own focus and impact on the energy transition. What drives your curiosity? You decide what suits you best.

You can apply to one of five divisions: Design, Offshore, Onshore, Operate, Digital & Technology Transformation. If you apply to more than one division, we will only consider your first application.

Design

As an International in TenneT's Design Division , you will help shape the energy system of the future. The Design division defines TenneT's corporate strategy and translates it into integrated, future-proof vision for our electricity system: onshore and offshore. Next to that we facilitate the functioning of electricity markets. Working closely with our customers and stakeholders, we explore future scenarios, anticipate developments, and create the framework that enables the energy transition. In doing so, we ensure that the system we design today will meet the challenges of tomorrow.

Onshore

As an International in TenneT's Onshore Division, you will help strengthen and expand the high-voltage grid that powers millions of homes and businesses. Onshore plays a crucial role in ensuring that the electricity system remains reliable, resilient, and ready for the future. You'll contribute to projects that reinforce existing infrastructure, connect new energy sources, and prepare the grid for the growing demands of the energy transition. Every new station and connection you help realise brings us closer to a sustainable energy system.

Offshore

As an International in TenneT's Offshore Division, you will help connect massive offshore wind farms to the onshore grid, a key step toward a clean energy future. Offshore is where innovation meets impact: we design, build, and operate the high-voltage connections that bring renewable energy from the sea to millions of households. You'll be part of international teams delivering complex projects that expand Europe's offshore grid and make the energy transition a reality. Every new cable and hub you help create brings us closer to a climate-neutral future.

Operate

As an International in TenneT's Operate Division , you'll be part of the team that keeps the lights on - 24/7. The Operate division ensures that our high-voltage grid remains stable, secure, and compliant, safeguarding power, voltage, frequency, and stability limits at all times. The division is responsible for real-time system operation - continuously monitoring, balancing, and controlling electricity flows to keep supply and demand in balance.

Digital & Technology Transformation

As an International in TenneT's Digital & Technology Transformation (DTT) Division , you will help design and operate the digital backbone of the energy transition. DTT manages and develops TenneT's digital landscape, delivering high-quality, innovative IT solutions. In addition this unit provides insights by providing digital innovation, data analytics and AI capabilities, enabling smarter decisions and accelerating TenneT's digital transformation.

The three pillars of your hsip

What to expect of your ship

Jorn en collega's op laptop

assignments (70%)

Work on challenging projects within our divisions. From day one, you'll take on real responsibilities, gaining an inside perspective on TenneT and discovering where your talents can make the greatest impact.

activities (20%)

In addition to your daily work, you'll take part in joint projects, company visits, and inspiration sessions. This way, you'll build a strong network both within TenneT and beyond.

Sollicitatiegesprek

When should you apply to this ship?

Your profile and background

We're looking for talented individuals who are excited to help build a strong and resilient energy grid - from large-scale infrastructure projects to electrotechnical installations at our substations.

Educational Background - You have recently completed a university degree in a relevant field.
Work experience - You have 0-2 years working experience prior to applying to the ship.
Energy Curiosity - You are fascinated by the complexity of electricity systems and markets and want to contribute to their transformation.
Analytical & Creative - You enjoy solving puzzles, working with data and technology, and thinking about how tomorrow's energy system should work.
Language & learning - Fluency in English is required, and you are motivated to learn Dutch.
Flexibility and Mobility - You are comfortable with working at various TenneT locations and are open to travel for work, both within the Netherlands and internationally.
Relevant Experience - Previous experience in internships, vocational training, or part-time work in a relevant field is a plus, as it will help you hit the ground running during your ship.

When can you apply

About five months before the start date, you can apply. For a start at TenneT in April, the job postings are published in November, and for a start in October, the positions go online in May.

Would you like to apply for a vacancy? Please choose one role you want to apply for.

The next application round is for the October 2026 intake.
Applying

Are you going to apply? Great! By clicking 'apply,' you can upload your CV and motivation letter. There are four questions in our vacancy which you will answer in your motivation letter. You will receive a confirmation email.
First selection round

We make a pre-selection based on your CV and motivation letter. Based on this, we will ask you to share an application video with us. We will then use these videos to select candidates for the interview rounds. Please submit your video no later than 25 May.
Invitations for the selection days will be sent out by 1 June at the latest. The second selection round consists of in-person selection days. Depending on your field of expertise, you will visit us on 16 or 18 June 2026. The day includes a job interview, a pitch, and a group case.

Her economic perspective turns out to be exactly what TenneT needs.

Opleidingsniveau: WO
Carrièreniveau: Starter
Uren: 33 - 40 uur per week

Company Information

Company Name: TenneT

Company Website: https://www.tennet.eu

TenneT is a major European electricity transmission system operator (TSO) that operates and develops the high‑voltage electricity transmission networks in the Netherlands and Germany. The organization emerged from liberalization and reform efforts in the European energy sector in the late 1990s and early 2000s and today functions as a dual‑jurisdiction group comprising TenneT TSO B.V. in the Netherlands and TenneT TSO GmbH in Germany. These entities operate within a unified corporate framework and share common standards, technology platforms, and grid operation practices to secure a reliable supply of electricity across borders. The primary objective of TenneT across both countries is to ensure the safe, reliable, and efficient transport of electricity from generation sources to end users while enabling cross-border exchange of power with neighboring electricity systems. This dual operation makes TenneT one of the central transmission system operators in Europe, deeply involved in the integration of renewable energy sources, improvements to grid resilience, and the development of the continental energy landscape necessary for the energy transition. Core business activities include the real-time operation of the transmission network, planning and execution of grid expansions, and ongoing maintenance of transmission assets. TenneT’s network operations center coordinates the dispatch and balancing of electricity flows to prevent outages and maintain system frequency within statutory tolerances. The company manages the lifecycle of its assets—from design and procurement through construction and commissioning to ongoing maintenance and eventual retirement—employing rigorous asset management, safety, and reliability standards. In addition to day-to-day network operation, TenneT engages in long-range grid planning to accommodate projected generation and demand growth, including large-scale offshore wind, solar, and other renewable resources. The planning process considers load growth, generation patterns, grid bottlenecks, congestion management, and the development of interconnections with neighboring grids, with the aim of strengthening the reliability of the European power system and supporting regional energy security. A distinguishing aspect of TenneT’s activities is its offshore transmission program. The company designs and constructs offshore grid connections that bring electricity generated by offshore wind farms to onshore networks. These offshore grid connections typically involve high-voltage direct current (HVDC) or high-voltage alternating current (HVAC) links and are paired with onshore substations and interconnection points to integrate offshore capacity into the wider grid. The offshore programs associated with TenneT include well-known transmission links that connect offshore wind production areas to onshore networks, enabling the export of wind energy from Dutch and German offshore sites. The company also operates cross-border HVDC interconnectors that facilitate electricity trade with neighboring systems, strengthening regional energy security and supporting market integration across Europe. Technological capability and innovation play a central role in TenneT’s operations. The TSO employs sophisticated grid control technologies, advanced protection schemes, and digital monitoring to manage real-time grid security, contingency analysis, and fast restoration procedures. It also participates in joint European initiatives to harmonize network codes, grid connection standards, and market mechanisms. TenneT’s activities align with wider European goals for the energy transition by enabling the reliable integration of renewables, improving the resilience of the electricity system, and enabling cross-border flows that support price convergence and energy availability for consumers and businesses. In practice, this means coordinating with other European TSOs through bodies like ENTSO‑E, contributing to the development of common European grid codes, and supporting cross-border transmission planning to ensure coordinated investment across the continent. In governance terms, TenneT operates under national regulatory frameworks in the Netherlands and Germany, with oversight and licensing processes that ensure compliance with safety, reliability, and environmental standards. The company publishes its grid development plans and investment programs on official platforms, providing transparency about planned expansions and the timelines for new interconnections and capacity upgrades. TenneT’s dual presence in the Netherlands and Germany positions it to play a pivotal role in driving cross-border collaboration and the expansion of interconnections that are essential to Europe’s energy market integration and decarbonization agenda. The organization communicates with policymakers, regulators, energy market participants, and the public to explain grid-related projects, safety considerations, and the expected benefits of new transmission capacity for consumers and the broader economy. By maintaining robust operational capabilities, investing in modern grid infrastructure, and pursuing cross-border cooperation, TenneT contributes to a secure, sustainable, and interconnected European energy system.

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