The drive for increasing energy efficiency and reducing greenhouse gas emissions has garnered increasing support for the use of fuel cell technology, which offers the potential for applications ranging from transport to stationary power generation. In terms of the latter, solid oxide fuel cells, which represent all solid state systems operating at elevated temperature (500-1000C), are the preferred option. In this area, there is a drive to develop new materials with improved properties, and the correlation between structure and properties is vital in such work. In this experiment we aim to perform detailed structural studies on some novel proton conducting perovskite electrolytes, based on doped Ba2Sc2O5, in order to locate the proton site, and correlate structural factors with the water incorporation/conductivity data.