IntroductionSolar energy, free and abundant in most parts of the world, has proven to be an economical energy source in many applications. The sun is a pristine and renewable source of energy, which generates neither greenhouse gases nor toxic waste with its use. Photovoltaics (PV) is a technology in which the sun's radiant energy is converted into direct current (DC) electricity. It uses materials that absorb photons of light and give off electron charges. It can be used to make electric generators. The rudimentary element of these generators is called a photovoltaic cell. A power electronic interface, such as an inverter, operates in grid-connected mode; the voltage and frequency are set by the electrical grid. To keep the operating power factor unified, the injected current is defined by the power electronic circuit with a successful feedback control. With the advent of power electronics-based DG, several applications in recent years have demonstrated the benefits of reactive power scheduling on the grid, harmonic mitigation, and even voltage control at the point of worldly coupling (PCC), as well as of the use of energy storage systems. A voltage source inverter is designed to operate in two modes: grid-tied and STATCOM. For this, the voltage source inverter must have two control modes: simple P&Q regulation mode and droop control mode. When the inverter is connected to the grid, a fast fault detection technique is implemented to convert the inverter from to STATCOM and disconnect the DC side voltage support in case of blackout and reconnect it seamlessly to the grid. In the droop control mode the inverters connected to the grid behave like STA...... middle of paper......rrent is crossing the constituencies with respect to the IEC 61000-3-2 standard and the IEEE 519-1992 standard . When PV-STATCOM is connected to the electrical load distribution model, the distortion of the waveforms of phase A power and rms current due to the presence of harmonics is reduced and has a sinusoidal shape, as shown in Figs respectively. 18 and 19. The FFT analysis of the supply voltage and current without PV-STATCOM is shown in Fig. 20. Table 4 lists the percentage of aberrant and even-order harmonics present in the supply current of the distribution model with PV -STATCOM, obtained after FFT analysis. Table 3 lists the voltage and current THDs of the distribution model due to the nonlinear loads obtained from the simulation result. THD values ​​and percentage of harmonics detected in the supply current are within limits compared to IEC 61000-3-2 and IEEE standards 519-1992.