This Master Thesis work evaluates water supply technologies based on photovoltaic energy conversion, in developing countries, analysing strengths and weaknesses of the technology at present time, highlighting the development is past decades as well as future opportunities. Alternative options for serving the purpose of rural water pumping are weighted vis-à-vis and their requirements and concepts are discussed from technical as well as non technical points of view. Technical solutions, applied during the last decades, and market available ones in recent days are being analysed and a proposal for a promising approach is being derived successively. A compiled checklist contains key-issues, being essential for overcoming barriers towards large-scale implementation of the technology. Attention has to be paid to reliability and price of course, but furthermore to the availability of spare part logistics, maintenance and repair services, being capable to achieve operation, free of significant time of idleness under no requirement of skills except those, being available on-site. Therefore the choice of components shall be oriented on the local offer of standardised products, such as industrial frequency converters, instead of specialized products. The technology should preferable be manufactured locally; installation, maintenance and repair as well as operation should. The infrastructural preparedness, providing spare parts logistics and services has to be given. Applications of photovoltaic water pumping in developing countries can be categorised in income generation and domestic use of pumped water. There is a large potential for PVP in livestock watering as irrigation already being used, due to the matter of fact, that obtained benefit can be expressed in monetary value and initial cost for the technology can be recouped. The situation concerning drinking water supply in rural villages is to be considered as more problematic from economic point of view. The supply of clan water, accompanied by the appearance of improved health, hygiene and secondary effects as increase in productivity and literacy are more challenging to be judged economically. Therefore funds are required to overcome the deficiency of financial means.