The SSPS tower (Small Solar Power System) at the Plataforma Solar de Almería (owned by the Spanish research centre CIEMAT) in Spain. At the moment, its size and level of automation already make the plant an important prototype for future industrial plants. The reactor technology for this plant was developed by DLR. The reactor is heated to 800 to 1 200 degrees Celsius by concentrated solar radiation. These temperatures then allow hydrogen to be extracted from water.