<p>➀ Fraunhofer FEP advances building-integrated photovoltaics (BIPV) using Nano-Imprint Lithography, enabling seamless solar module integration into facades without compromising aesthetics or efficiency.</p><p>➀ Decorative films on ETFE substrates achieve up to 80% efficiency of standard modules, with plasma treatments enhancing adhesion and weather resistance.</p><p>➂ Future steps include testing additional designs, colors, and long-term durability to boost BIPV adoption in architecture.</p>