Intern for Batteries in the High-Voltage Network (80-100%)

About the job

Electricity powers our lives. And we move electricity. Every day, we commit ourselves to the security of supply on the network side in Switzerland. On behalf of Switzerland and in cooperation with international partners, our employees ensure a powerful and reliable electricity grid.

Swissgrid plans, builds, and operates Switzerland's high-voltage network in coordination with foreign transmission network and domestic distribution network operators.

The electricity industry is undergoing change. In Europe, more and more central large power plants are being replaced by a multitude of decentralised, renewable small power plants combined with storage. This presents new challenges for the grid infrastructure of the future. New technologies in electricity transmission and new operational philosophies are further drivers for the transformation of the transmission network. The transmission network is continuously being reinforced, adapted, or renewed.

For our team in Aarau, we are looking for an intern from June 2026 at the earliest for 6 to 12 months

Intern for Batteries in the High-Voltage Network (80-100%) - 1549

Are you interested in storage technologies in the high-voltage network and systemic questions in the mega- and gigawatt range? Swissgrid lays the foundations so that modern storage technologies sustainably support the secure electricity supply of Switzerland.

Ensure electricity in Switzerland

In this internship, you will develop fundamentals for integrating large batteries into the Swiss high-voltage network and contribute to addressing various issues. The internship reports directly to the project management and offers you the opportunity to work interdisciplinarily with different departments and gain broad insight into Swissgrid and its environment. Your tasks include, among others:

• Collaborating on the integration of large batteries into the transmission network
• Supporting the development of technical, operational, and regulatory fundamentals
• Adopting a holistic view, getting to know the technology and the political framework
• Working on interface topics between technology, operations, regulation, and IT
• Discussing with industry experts, representatives of authorities, and interest groups
• Preparing, documenting, and communicating results for different target groups

This is how you make a difference

For this exciting internship position, we are looking for a person with high motivation and an independent, analytical working style. Additionally, you bring the following:

• Student of electrical engineering, mechanical engineering, physics, mathematics, or a similar field at a university or university of applied sciences, ideally with a bachelor’s degree
• Interest in the electricity sector and batteries in particular. You are also open to interdisciplinary activities
• Initial experience with batteries is an advantage but not mandatory
• You speak good German and English; knowledge of French is an advantage

This is how we inspire you

We offer varied and exciting tasks in a company unique to Switzerland and a modern working environment in close proximity to Aarau station in a young, motivated, and international team. In addition, you can expect the following benefits:

• Professional experience in the energy sector and insight into the tasks of a transmission system operator
• Comprehensive insight into current developments in frequency control and voltage regulation in Switzerland and Europe
• Participation in various events to get to know the departments and tasks of Swissgrid
• 25 working days of holiday as well as company holidays between Christmas and New Year
• Flexible working hours (42 hours per week)
• After successful completion of the internship, the topic can be deepened with a master’s or semester thesis if mutually interested.

About us

The Market Strategy department plans Swissgrid’s future network. This includes both classic network planning with lines and substations as well as new topics such as compensation plants, HVDC, batteries, and the integration of hydrogen and data centres. Our goal is to develop the network of the future so that Switzerland can be supplied with electricity efficiently and securely.

We are a diverse department coming from various disciplines. We enjoy sports, music, culture, and nature – and we look forward to meeting you personally!