grüüün is a new energy provider that offers 100% green power from solar and wind, delivered CO₂-neutrally without middlemen. The service is for customers seeking fair, understandable, and affordable energy with long-term price security. It uses a clear digital platform and an AI spokesperson, "Gustav," to make energy topics accessible and simple. Sustainability is achieved through 100% green power, paperless operations, and an ad-free recommendation system.