SUNWELL is an EPFL startup transforming how complex utility-scale solar and Agrivoltaics are planned, designed, and optimized. Built on 6 years of engineering expertise optimizing alpine PV infrastructure for leading Swiss utilities, we developed Lumi4D—a high-precision simulation tool that creates physics-accurate 3D Radiative Twins of any environment with unprecedented computing speed and scalability. What we solve for Project Developers, EPCs, and Regulators: 🎯 Precision AgriPV Design: Optimizing light distribution to maximize both crop health and energy yield. ⚖️ Streamlined Permitting: Delivering the rigorous, physics-backed validation required by regulatory bodies. 📈 Bankability: High-fidelity modeling that de-risks investments for large-scale assets. We make complex energy environments predictable and profitable. Let us simulate the future of solar today.