What is a Stand-alone photovoltaic system?
A stand-alone photovoltaic system is a type of photovoltaic installation that is not connected to the national electricity grid but is connected to an autonomous energy storage system, generally electric batteries, able to collect the electricity produced by the plant and return it to users in the moment of need.
With the end of incentives, in fact, we begin to think of a possible convenience in using autonomous photovoltaic systems, disconnected from the national electricity grid, capable of producing and storing energy in place without passing through Enel's electricity grid.
Stand-alone photovoltaics, therefore, constitute an independent and autonomous system of energy supply that can be used in the most diverse contexts.
This "island" system, scalable exactly like the classic photovoltaic installations, can be built on a small scale, for example for solar-powered electric lanterns, as on a large scale, to constitute real autonomous local electricity grids capable of supply clean electricity to entire areas disconnected from the grid.
How does an off-grid photovoltaic system work?
Stand-alone or "stand-alone" photovoltaic systems are autonomous systems, ie not connected to the grid, excellent for do-it-yourself solutions, for isolated houses, etc.
With a stand-alone photovoltaic system, you can become energy independent, break down your electricity bill and protect yourself against blackouts.
A stand-alone system consists of solar panels, inverters, charge controller and batteries.
The photovoltaic modules produce direct current and send it - via the charge regulator and the battery - to the inverter, which transforms it into alternating current.
Batteries conserve electrical energy, which can also be used at night or during blackouts.
Stand-alone photovoltaic systems are modular: you can start with a basic system and then expand it later as needed.