In the frame of this summer internship project, the student will modernize the curve book generated by the reactor team at the Beznau nuclear power plant (KBB). The curve book is a central piece of documentation, which is used by the crews in the main control room (MCR) for, among others, reactivity management. That is to say, predict the reactor behavior before doing reactivity maneuvers (reducing power, insertion of the control rods, boration, etc). This information is cycle- and burnup-dependent, and the reactor team, therefore updates the curve book regularly. The results are generated by the state of the art lattice-nodal computational package CASMO/SIMULATE, and the post-processing is mostly Microsoft Office-based. The intern will work on optimizing the edition process: reviewing the calculations, modernizing the curve creations, and optimizing the content to the needs of the MCR crews. By doing so, the intern will gain a deep understanding of the reactivity management and the methods used at Beznau for that purpose.

Your profile:

• General: Familiarity with PWR technology in general, proficiency in working autonomously, critical thinking
• Coding skills: Python; Microsoft Office, CASMO/SIMULATE knowledge would be a plus
• Fluency in written and spoken English; German would be a plus

Working conditions:

• Location: Beznau NPP
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: Limited to an internship

In the frame of this summer internship project, the student will build a detailed tracking of the margin to criticality during the shuffling of the core of at the Beznau nuclear power plant (KBB). In the current approach, such a margin is known before and after the core shuffling only. During the core shuffling, conservative measures are taken into account to compensate the deficit of information. With state-of-the-art computational tools (CASMO/SIMULATE), the summer intern will be able to track the core reactivity at every step of the core shuffling. Studying the whole history of core shufflings at KKB, the intern will be able to compare the current conservative hypotheses against best-estimate results. This could help the plant to reduce conservativeness during the yearly core shuffling of both reactor blocks.

Your profile:

• General: Familiarity with PWR technology in general, proficiency in working autonomously, critical thinking
• Coding skills: Python; Microsoft Office, CASMO/SIMULATE knowledge would be a plus
• Fluency in written and spoken English; German would be a plus

Working conditions:

• Location: Beznau NPP
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: Limited to an internship

In the frame of this summer internship project, the student will get familiar with Radiological Consequence Analysis (RCA) for design basis accidents of a pressurized water reactor. The student will prepare and inspect source terms, i.e. the radiochemistry and release of radio-isotopes. The goal of the project is to adapt all RCA at the Beznau nuclear power plant (KKB) to the new regulatory requirements of the Swiss guideline ENSI G14. For this it is necessary to, based on existing source terms, perform new calculations of the dispersion of radioisotopes in the environment as well as Immersion / Inhalation / Ingestions of such by the general population. The student will perform these calculations using new specialized commercial software. Furthermore, the student will implement a database with the result of the dose calculations and compare the maximum dose for each design basis accident against regulatory requirements. The student may write custom software (preferably in Python) to improve the RCA workflow. The student will finalize a report on the project and contribute to the documentation for the Swiss regulatory authority.

Your profile:

• Familiarity with PWR technology; Basic Understanding of radiochemistry, activity and dose calculations for radio-isotopes
• Proficiency in working with large datasets; Python Coding skills is a plus
• Good technical writing skills; Fluent in English; German reading skills or willingness to learn German

Working conditions:

• Location: Beznau NPP
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: Limited to an internship

In the frame of this summer internship project, the student will work in the fuel back-end team of Axpo at the headquarters in Baden. A newly introduced project aims to build internal competencies in technical analyses in the area of storage and transportation casks for spent nuclear fuel. The intern will develop skills in the area of storage cask modelling by using finite element analysis. The commercial tool ANSYS will be used for the finite element analysis whereas the commercial tool Solidworks will be utilized for the CAD modelling. Within this project, the student will model 3D-parts of a dry storage cask, perform handling studies to gain insight of deployment within the plant, and generate meshes for finite element modelling​.

Your profile:

• Initial experience with FE-Modeling or willing to learn about with the ANSYS tool
• Good technical writing skills; Fluent in English; German would be a plus

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 07/25 to 09/25)
• Extent: Limited to an internship

In the frame of this summer internship project, the student will work in the fuel back-end team of Axpo at the headquarters in Baden. A newly introduced project aims to build internal competencies in technical analyses in the area of storage and transportation casks for spent nuclear fuel. The intern will develop a thermal model of the cask to model cooling and thermal profiles using ANSYS. The analysis will be a replication of an already existing third-party calculation, such that there is an example available. The intern will perform a semi-static thermal finite element analysis of a dry storage cask.

Your profile:

• Experience with thermodynamics
• FEA experience is advantageous, otherwise willingness to learn
• Good technical writing skills; Fluent in English; German would be a plus

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 07/25 to 09/25)
• Extent: Limited to an internship

In the frame of this summer internship project, the student will work in the fuel back-end team of Axpo at the headquarters in Baden. A newly introduced project aims to build internal competencies in technical analyses in the area of storage and transportation casks for spent nuclear fuel. The intern will set up the knowledge management for the newly developed in house-project of setting up technical analysis competencies. This will include involvement in initialization of a software platform for the fuel element casks, initiating project management and establishment of the necessary processes for long-term knowledge retention.

Your profile:

• Familiarity with project management or willingness to learn
• Technical background
• Interest in people and processes
• Good technical writing skills; Fluent in English; German would be a plus

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 07/25 to 09/25)
• Extent: Limited to an internship

In the frame of this summer internship project, the student will work in the fuel back-end team of Axpo at the headquarters in Baden. A newly introduced project aims to build internal competencies in technical analyses in the area of storage and transportation casks for spent nuclear fuel. The intern will focus on performing finite element analyses for storage casks of spent nuclear fuel by emphasizing on the bolted connections. The student will develop competences in the area of casks analyses by performing finite element analyses and static calculations

Your profile:

• FEA experience is advantageous, otherwise willingness to learn
• Mechanical engineering background is advantageous
• Good technical writing skills; Fluent in English; German would be a plus

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 07/25 to 09/25)
• Extent: Limited to an internship

In the frame of this summer internship project, the student will work in the nuclear reactor physics team of Axpo at the headquarters in Baden. The nuclear physics team of Axpo is updating its quality management program for the execution of core design and safety analyses activities of the Swiss NPPs. By following the guidelines of the certification ISO19443, the main aim of this summer project is to support the critical review of the existing team's processes and procedures for executing core design and safety analyses and support the preparation of processes/procedures which have not yet been implemented. The intern will interact closely with the members of the nuclear physics team of Axpo to understand how the current activities are structured by having the unique opportunity to understand how real nuclear industry applications are executed. In addition, the intern will support the development of a governing quality assurance program which will include the description of all the team's processes and procedures alongside all supportive activities.

Your profile:

• Hard skills: nuclear engineering, quality management principles, English
• Soft skills: independent work, critical thinking, systematic work

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: According to the project's performance, the internship could be extended.

In the frame of this summer internship project, the student will work in the nuclear reactor physics team of Axpo at the headquarters in Baden. For this project the student will initially get familiarized with the core design procedure for the Leibstadt nuclear power plant (KKL), and with industry-standard nodal simulation codes. The project will then consist in optimizing several procedures of the core design process: 1. Automatizing and speeding up the end-of-cycle prediction. Here the student can bring their own background knowledge to tackle the problem, either with advanced algorithms or machine learning techniques. 2. Re-writing the full end-of-cycle prediction procedure in SIMULATE5 (currently being performed with PRESTO2). Here the student will have the possibility to dig in deep into the two codes and gain highly-valuable expertise in them. 3. Eventually other calculation-steps can be optimized/studied, and potentially lead to a master thesis.

Your profile:

• General knowledge of light-water reactors
• Programming skills (familiarity with Linux machines is important, knowledge of any programming language is useful)
• Ability to learn and work autonomously, active participation and critical thinking skills.

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: a master thesis on this topic could be offered

In the frame of this summer internship project, the student will work in the project management team of the Beznau nuclear power plant (KKB). For this project the student will work on the area of neutron resistant smoke detectors. Using 3D printing with boron-containing film, currently it is possible to develop a smoke detector with a shield. These should be placed in appropriate locations for a long-term test during the yearly outage of the plant in order to assess their functionality. Furthermore, contact can be made with PSI for examination/tests of the developed detector in a stronger radiation environment. In addition, an optimized construction of a smoke detector casing can be developed.

Your profile:

• Electrical Engineering
• 3D – Modeling
• Experiment design
• Ability to work independently
• Fluency in written and spoken English; German would be a plus

Working conditions:

• Location: Beznau NPP
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: project could be extended according to the performance

In the frame of this summer internship project, the student will work in the risk management team of the Beznau nuclear power plant (KKB). The intern will assist the engineers at KKB in the assessment of the risk contribution caused by flooding from internal sources (e.g. pipes, tanks) following EPRI guidelines which includes a new pipe rupture frequency model and refined modeling principles (e.g. flood propagation, consequences).

Your profile:

• Demonstrating critical thinking skills
• Proficiency in working autonomously
• Good technical writing skills
• Fluency in written and spoken English

Working conditions:

• Location: Beznau NPP
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: limited to an internship

In the frame of this summer internship project, the student will work in the nuclear fuel fabrication team of Axpo at the headquarters in Baden. The summer student will work with the fuel performance code Falcon (created by EPRI). Falcon is a code that models the thermal-mechanical behavior of fuel rods. It is used to determine thermal and mechanical loads on the fuel rod structure and cladding tube. During this project the student will get familiar with the Falcon code by performing fuel rod calculations of different fuel assembly designs. The results will be documented on a technical report.

Your profile:

• Nuclear engineering or mechanical engineering, knowledge of computer modelling and/or FEM is beneficial but not required
• independent, systematic worker, curious, proactive
• communication skills; expertise in English; German is a plus

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: According to the project's performance, the internship could be extended.

In the frame of this summer internship project, the student will work in the digital transformation team within the nuclear civil department of Axpo at the headquarters in Baden. The summer student will support the development and implementation of Digital Twin solutions by driving process digitalization and automation to optimize workflows. Last, the intern will develop fast prototypes to test and refine new solutions.

Your profile:

• Degree in Computer Science or equivalent (Bachelor’s or Master’s level)
• Proficiency in Python for software development
• Basic knowledge of REST APIs for system integration
• Experience with Spark/Databricks is a plus
• Interest in UI/UX design, with familiarity in Figma or AdobeXD as a plus
• Entrepreneurial Mindset – Proactive in identifying opportunities and driving innovation
• Problem-Solving & Analytical Skills – Ability to assess complex challenges and propose effective solutions

Working conditions:

• Location: Axpo HQs in Baden, Beznau and Leibstadt NPPs
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: limited to an internship

In the frame of this summer internship project, the student will work in the digital transformation team within the nuclear civil department of Axpo at the headquarters in Baden. The summer student will analyze the market for digital twins in the nuclear industry, including market size and growth potential. Focus will be to identify and assess competitors, their solutions, and strategies. In addition, emphasis should be given on the research of technological developments and market trends. Furthermore, a business model should be developed for digital twins by defining the value proposition: What services are offered, and what benefits do they provide? The intern will establish the service delivery model: In-house developments vs. partnership strategy. And will build and maintain strategic partnerships with industry and technology providers. Last, the student will identify and secure funding sources for business development and scaling. For this project, two summer intern students will be hired.

Your profile:

• Technical & Industry Knowledge
• Experience in market research, business development, or strategy consulting in a highly regulated environment is a plus
• Strategic Thinking – Ability to develop long-term visions and translate them into actionable plans
• Entrepreneurial Mindset – Proactive in identifying opportunities and driving innovation
• Problem-Solving & Analytical Skills – Ability to assess complex challenges and propose effective solutions
• Collaboration – Experience working cross-functionally
• Adaptability & Resilience – Comfort in navigating uncertainty and evolving industry landscapes

Working conditions:

• Location: Axpo HQs in Baden, Beznau and Leibstadt NPPs
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: limited to an internship

In the frame of this summer internship project, the student will work in the asset management department of Axpo at the headquarters in Baden. The summer student will work on performing a preliminary environmental and societal case study for a new nuclear development project In Switzerland. As part of building intelligence within the Organization, the proposed study focuses into exploring the ESG alignment of NND in Switzerland to evaluate its potential role in addressing the energy trilemma (reliability, sustainability, and affordability). The study will focus on assessing environmental, social, and governance (ESG) dimensions within Swiss constraints and global best practices.

Your profile:

• Nuclear industry knowledge
• Focus on new nuclear project
• Project management
• Understanding of ESG framework
• Communication skills; expertise in English

Working conditions:

• Location: Axpo HQs in Baden, Beznau and Leibstadt NPPs
• Duration and time constraints: 3-month project (Possible from 06/25 to 09/25)
• Extent: possible extension to a semester project and/or master thesis

In the frame of this summer internship project, the student will work in the asset management department of Axpo at the headquarters in Baden. The summer student will work on performing a preliminary environmental and societal case study for a new nuclear development project In Switzerland. As part of building intelligence within the Organization, the proposed study focuses to explore the site-specific seismic requirements for new nuclear development in Switzerland, assessing the suitability of reactor technology concepts.

Your profile:

• Nuclear industry knowledge
• Understanding of regulatory framework (emphasis on seismic requirements)
• Project management
• Communication skills; expertise in English

Working conditions:

• Location: Axpo HQs in Baden, Beznau and Leibstadt NPPs
• Duration and time constraints: 3-month project (Possible from 06/25 to 09/25)
• Extent: possible extension to a semester project and/or master thesis

In the frame of this summer internship project, the student will work in the safety and verification team of the Leibstadt nuclear power plant (KKL) The documentation related to licensing, operation and regulation of a nuclear power plant is extensive. This industrial internship project is part of a program that develops innovative tools to support nuclear safety experts in their daily work. The objective of the internship is to enhance and benchmark an existing LLM application at KKL so that it is able to deal with a specific task, such as assessing documents’ relevance for goods control, working with regulations and guidelines, or carrying out technical research. The exact task will be determined based on the student’s preferences and current requirements at the safety department as soon as the internship starts.

Intended phases:

1. Onboarding: Get familiar with LLM basics, get to know the existing LLM application at KKL, and conduct a review of related research and current development. Extensive support from experts in the safety department will be provided.

2. Concept phase: Define the exact task (see above) which will be chosen for benchmarking the LLM application. Specify the test datasets, prepare necessary interfaces, and consult with experts.

3. Benchmarking: Conduct a review of how to benchmark LLMs and identify suitable performance metrics (considering the special characteristics of the nuclear industry). Prepare and conduct benchmark tests, and record result.

Your profile:

• Nuclear industry knowledge
• Good programming skills in Java, C# or Python.
• communication skills; expertise in English; German is a plus

Working conditions:

• Location: Leibstadt NPPs
• Duration and time constraints: 3-month project (Possible from 06/25 to 09/25)
• Extent: possible extension to a semester project and/or master thesis

Operators of Nuclear Power Plants (NPP) have built up a unique experience and industry specific knowledge over the last decades. They have turned conventional industrial applications into nuclear solutions and have developed branch specific concepts. Axpo aims to commercially exploit these innovations and therefore needs an overview over the relevant areas of innovation in the nuclear industry as well as the current state of the art of techniques in NPP. Nuclear engineering students will get the opportunity to dive into the world of innovation and intellectual property (IP) and to connect with professionals in the field of nuclear industry. The aim of the internship is to draw a nuclear innovation landscape, to suggest areas of future developments and to detect potential for IP protection for Axpo

Your profile:

• Nuclear industry knowledge
• Interest working on a broad industrial project focusing on innovation.
• Project management and systematic way of working.
• Independent work and critical thinking
• Communication skills; expertise in English; German is a plus

Working conditions:

• Location: Axpo HQs in Baden
• Duration and time constraints: 3-month project (Possible from 06/25 to 10/25)
• Extent: possible extension