GRID Free as the only solution today makes logical sense. The days when ON-GRID systems paid off are long gone, because the price at which the power plant buys energy from you is much lower than it was a few years ago. The GRID Free system works practically very similarly to the ON-GRID system, with the difference that we do not allow overflows into the supplier’s network, but we try to consume them ourselves. In this solution, we do not need to replace the existing electricity meter, it is only necessary to install a limiter, which will prevent overflows into the supplier’s electrical network. The limiter current probe simply measures the current drawn from the supplier’s network and at the same time compares the values with the energy produced from our panels. If the energy produced from the PV plant is higher than the current taken from the same phase, the limiter withdraws the power of the inverter so that there are no overflows. The problem is that a standard electricity meter does not know in which direction the current is flowing, so you would pay for the surplus just as you would draw the current. Of course, the GRID Free system can also be supplemented with batteries, and if we have an excess of energy, it is also possible to recharge our own batteries, from which we can draw when the system does not generate energy (night).