This chapter explores an innovative approach to sustainable hydrogen production by integrating spectrally split concentrated photovoltaics (SSCPV) with solar power tower technology. The system harnesses the full solar spectrum, directing visible light to high-efficiency photovoltaic cells for electricity generation and infrared radiation to a central receiver for high-temperature thermal applications. The recovered heat and electricity jointly power thermochemical or hybrid processes for hydrogen production, maximizing overall solar-to-hydrogen efficiency. Key components such as spectral splitting optics, multi-junction PV cells, and high-temperature heat transfer media are discussed. The chapter also analyzes system-level design strategies, thermodynamic performance, and integration challenges. A techno-economic and environmental assessment reveals the potential of this dual-mode solar system to deliver green hydrogen at competitive costs while reducing carbon emissions. This chapter serves as a comprehensive reference for researchers and engineers aiming to develop next-generation solar hydrogen production technologies.