Ore Energy is developing the next generation of long-duration energy storage to enable a fully renewable power system. Our iron-air battery technology stores electricity for up to 100 hours, making it possible to keep grids running through multi-day periods of low wind and sun.
Unlike conventional batteries, our systems use abundant, non-toxic materials: iron, air, and water. This makes them safe, cost-effective, and scalable without relying on scarce minerals or fragile supply chains. When charging, the battery converts rust into metallic iron. When discharging, it reverses the reaction, consuming oxygen and producing rust again. This simple, proven chemistry has the potential to deliver energy at a fraction of the cost of other storage technologies.
Founded at TU Delft in the Netherlands, Ore Energy is focused on real-world deployment. In 2025, we connected the world's first iron-air battery to the grid in Delft. This milestone demonstrated that multi-day storage can be integrated directly into modern energy systems.
As countries expand renewable generation, the challenge of balancing supply and demand is becoming urgent. We believe long-duration storage is a critical part of the solution and that it must be safe, sustainable, and affordable at scale.
Ore Energy’s mission is clear: to store renewable energy anywhere, for as long as needed, using materials that are available to everyone. By combining deep electrochemistry expertise with practical engineering, we are turning one of Earth’s most abundant resources into a cornerstone of the clean energy transition.
To learn more about our technology, deployments, and career opportunities, visit: www.oreenergy.com
The role
The scope is to develop physics-based models to simulate charge/discharge behavior of porous electrodes for long-duration energy storage. The goal is to quantify how electrode geometry (e.g. porosity, thickness, tortuosity) affects ion transport limitations, voltage behavior, and EIS signatures. The work combines electrochemistry, transport modeling, and Python simulation.
- The internship duration is at least 3 days a week for 4 - 6 months.
- Start date is flexible
- Location is on-site at our Amsterdam office or hybrid (negotiable)
- Stipend reimbursement is EUR500 per month for 5 days a week (pro-rated for part time)
- This internship reports into our Chief Scientist, Yaiza Gonzalez Garcia.
Why this internship mattersThe outcome will influence design of electrodes for next-generation multi-day energy storage. Your simulations will guide real prototypes being tested in the lab.
Key responsibilities
- Build and modify 1D porous-electrode transmission-line models
- Simulate charge/discharge cycles, CV, and EIS
- Ingest and process experimental data (CV, LSV, discharge curves, porosity measurements)
- Perform parameter sweeps and sensitivity analysis
- Summarize results in short written reports
Deliverables- Analysis and summary of parameter influence (porosity, tortuosity, thickness)
- Final report with simulation results and recommendations
- (Optional) One reproducible Jupyter notebook implementing the model
Your profile
Required qualifications- Bachelor’s or Master’s student in Chemical Engineering, Materials Science, Applied Physics, Mechanical Engineering, or related field
- Competent with Python, familiar with scientific libraries would be desired (for example: numpy, scipy, matplotlib)
- Basic familiarity with electrochemical techniques (CV, charge/discharge, impedance)
- Ability to read technical literature and work independently
Preferred (not required)- Experience with PyBaMM, MATLAB, or COMSOL
- Familiar with porous media modeling or partial differential equations (Fickian diffusion, Butler–Volmer kinetics)
- Interest in batteries, energy storage, or grid-scale modeling