Objective Waste water of the 650 to 4000 inhabitants island Ventotene is recovered by a pv powered water treatment plant and used for irrigation of orchards and greenhouses. Four hydroponic greenhouses are also powered by pv generators.For ecological reasons PV electricity is the only acceptable power supply on that island. Also some wells are powered with pv generators for water lifting.The whole plant is subdivided in 3 separate units: 10.4 kWp, 12.7 kWp and 8.45 kWp.The water treatment plant comprises a 6.2 kWp sterilisation unit and a 5.3 kWp pumping unit. There is a 380 V, three phase inverter for the pumping and a 220 V, one phase inverter for the sterilisation unit.The four lifting pumps have a pv power supply of 5 kWp each, with one 300 V dc/220 V ac inverter for water lifting.The layout is still being changed: more water lifting pumps (10 cbm/h) and less water treatment are foreseen.Nr.subsystems : 5Power subsys. : 10.4 kWp, 12.7 kWp and 8.4 kWp.Total power : 31.5 kWpBackup : Data not available.Nr. of modules : Data not available.Module descrip. : SIEMENS M 55, 1295 x 322 x 30Connection : Arrays of nine strings.Support : Hot zinked steel racks.Max.pwr.trcker : noneChrg.controler : ITALENERGIE charge regulator.Battery : TS-Spain : 220 VCapacity: Batt. (Ah) : 1000Batt. (kWh) : 220Inverter : 2 (plus others, for which data are not available)Inv. in (V) : 220Inv. out(V) : 380, 3phInv. power (kW) : 220, 1phLoad descrpt. : Water lifting pumps, water sterilizer, sewage treatment.Monitoring : Foreseen (Siemens and Italenergie), but data not available. Programme(s) ENG-ENDEMO C - Programme (EEC) of demonstration projects and industrial pilot projects (EEC) in the energy field, 1985-1989 Topic(s) 7.1 - PHOTOVOLTAIC Call for proposal Data not available Funding Scheme DEM - Demonstration contracts Coordinator Italenergie SpA EU contribution No data Address Viale della Repubblica 39 67039 Sulmona Italy See on map Total cost No data