Solar hydrogen: fuel of the near future

Renewable hydrogen produced using solar energy to split water is the energy fuel of the future. Accelerated innovation in both major domains of solar energy (photovoltaics and concentrated solar power) has resulted in the rapid fall of the solar electricity price, opening the route to a number of practical applications using solar H2. Referring to several examples as well as to new technologies, this article provides insight into a crucial technology for our common future.