Aim of this work is to investigate various options for effectively introducing Net-Metering in residential Photovoltaic (PV) installations in Greece. Net-Metering is considered as an ideal policy for keeping the PV market alive, at least until storage systems become competitive without subsidies. However, this policy has been adopted in numerous forms and variations throughout the world, which necessitates a careful study before its adoption in a certain country/region. Policy makers should seek the equilibrium between keeping such investment alluring to investors but at the same time not endangering the profits and interests of grid operators. A project titled “Promotion of PV energy through net metering optimization”, funded by the European Territorial Cooperation programme MED aims to investigate the various policies that may be applied in the Mediterranean area and to provide policy makers with useful information and guidance. This paper focuses on the Greek case, where the PV market has almost collapsed after a notable increase the previous years. The application of certain policies in various regions in Greece is examined in a technoeconomical way, leading to results that may be useful both for policy makers and prospective investors.