The company CSolutions srl realized a photovoltaic system in Urbania (PU), using panels of QCELLS model QPRO250G3, combined with the POWER ONE inverter (AURORA PVI 3.0 - TL - OUTD) and with a GSE regime with net metering, the cost will be deducted complessico tax for 50%. The plant poternza amounted to 3.00 kWp, with an internal rate of return (IRR) of 13:28%. All materials were purchased from Coenergia srl in Bondeno of Gonzaga (MN).