This study reports the results obtained from the welding tests carried out within the European project H2020 "NEXTOWER", which aims to create a demonstration plant with concentrated energy (CSP) and high efficiency solar tower, based on the use of liquid lead as an energy storage element. In particular, the study focuses on the development phases of the robotic GMAW and strip cladding SAW welding procedures, to create defect-free coatings on Incoloy® 800H components adopting an innovative Fe-Cr-Al-based consumable, specially developed by Sandvik Kanthal. The paper illustrates the operational and metallurgical aspects associated with the use of the Fe-Cr-Al consumable, evaluating the effect of the different process parameters, as well as any heat treatments, on the mechanical and microstructural properties of the joints. The laboratory test results were compared with the qualification paths required by ASME and EN reference standards.