The aim of this paper is to give a broad overview of existing Programmable Josephson Voltage Standards (PJVS) setups and measurement methods, and document this in a report. As the qualities of the future multiplexer are not yet known, the methods will be differentiated by the speed of the multiplexer, depending on whether or not differential measurements are performed. The report will be used for adapting existing PJVS systems to measure power in future tasks.