The potential of renewable energies is presented for the territory of the Republic of Malta. These are in the main sun, wind and biogas. Taking the base year 2003 for comparing the percentage contribution of electricity generated from renewables to that generated from fossil-fuelled power stations, it was found that rooftop solar photovoltaic systems could produce 9.1%, onshore wind farms could offset 5.4% and the offshore wind potential lies in the region of 3.4%. Energy from waste could contribute another 5.6%, while widespread solar water heating in domestic buildings could offset 4.8%. Economic analysis of applying renewable energy power systems under the present constraints is carried out. A range of barriers to the use of renewable energy devices is described. The currently available incentives are listed and a number of measures that could be implemented to allow widespread applications of renewable energies are suggested