The potential of solar energy in enabling clean hydrogen production is being explored by researchers globally. Despite the current predominance of fossil fuel-based hydrogen production methods, there is a growing interest in shifting towards a carbon-free approach using water as a source. Solar thermochemical hydrogen (STCH) has emerged as a promising emissions-free alternative, with MIT researchers achieving a breakthrough in increasing efficiency up to 40%, potentially reducing costs. Additionally, engineers at ETH Zurich are working on improving heat transfer in solar reactors to produce synthesis gas for sustainable aviation fuels. Meanwhile, researchers at KU Leuven have developed hydrogen panels that can generate 250 liters of H2 per day, aiming to bring this technology to the mass market. As governments worldwide show interest in hydrogen as a clean energy source, innovative technologies and standards development, such as those by IEC Technical Committees, play a crucial role in driving the adoption and efficiency of solar hydrogen production.