The report, "Traversing the PV lab-to-fab 'Valleys of Death'," discusses the potential for emerging technologies in solar PV to disrupt and replace the dominant market incumbent, crystalline silicon (c-Si) technology. The report identifies and evaluates three potential winners in the emerging PV technologies, and discusses the challenges and opportunities associated with cultivating these technologies. The authors acknowledge the support and valuable input of Stephen Rogers, Dr. Robin Francis, and Abdulrahman Almuhanna. The report concludes that the long-term viability of c-Si as the market incumbent is uncertain, and that the emergence of new technologies will require careful management and investment.