SunHydrogen is an early-stage R&D company developing technology to produce hydrogen using only sunlight and water. The core product is a photoelectrochemical (PEC) panel that splits water molecules directly into hydrogen and oxygen using sunlight — no external electricity required. Unlike conventional electrolyzers, which depend on grid power as their primary input cost, SunHydrogen's panels would produce hydrogen on-site in a single integrated step. The company targets a production cost of $2.50/kg of hydrogen, which it believes would make its renewable hydrogen cost-competitive with hydrogen produced from natural gas. SunHydrogen is pursuing two technology paths: a nanoparticle-based approach that mimics photosynthesis, and a thin-film solar cell-based approach that adapts existing commercial PV modules for water-splitting — the latter seen as the faster path to market. The company has demonstrated a 1.92 m² prototype module and achieved roughly 9-10% solar-to-hydrogen efficiency, with the next major milestone being a pilot deployment of over 30 m² at the University of Texas at Austin. SunHydrogen has no revenue and funds operations through equity. The company works with industrial partners including Honda R&D, NREL, and Fraunhofer, and also holds a minority stake in TECO Fuel Cell Technology, a Norway-based fuel cell company, which it views as a potential end-user of hydrogen produced by its panels.