The Wendelstein 7-X is a stellarator, a type of nuclear fusion reactor located in Germany. It is designed to confine hot plasma using magnetic fields to achieve controlled fusion, which could provide a clean and virtually limitless energy source. The facility aims to demonstrate the viability of stellarators for future energy production. Constructed by the Max Planck Institute for Plasma Physics, the Wendelstein 7-X features a unique twisted design that helps maintain plasma stability. It began operation in 2015 and is part of ongoing research to improve fusion technology, contributing to the global effort to harness fusion energy as a sustainable alternative to fossil fuels.