The company CSolutions S.r.l realized a photovoltaic plant in Fermignano (PU) using the QCELL modules: model QPRO250G2, and Inverter POWER ONE (AURORA PVI 3.0 - OUTD), with GSE regime, exchange in place. The plant has an output of 2.20 kWp, with an internal rate of return (IIR) of 12:58%. Plant built with the 4th Conto Energia and an incentive fee of 0,352. All materials were purchased from the company Coenergia S.r.l.di Gonzaga (MN).