Photovoltaic Power Plant for Household with and without Battery Bank

There are several short-term and long-term investments aimed at reducing household electricity costs. An example of a long-term investment is the installation of photovoltaic power plants on the roof. The installation of photovoltaic power plants placed on the roof is gaining more and more application both in industry and in households, especially if the households are heated by electricity. In this paper, the sizing of a photovoltaic plant installed on the roof of a household with an installed power in panels of 7.2 kWp and a nominal power of an inverter of 6 kW, connected to the electricity distribution network, with and without a battery, as well as a comparison of the amount of electricity energy that is used to supply the consumption of that household, directly from photovoltaics, from a battery, as well as transmitted and received electrical energy from the network. A comparison of annual electricity costs with and without a battery is also provided.