Solar PV systems work by converting light into electrical power. This is achieved using a thin layer of semi-conducting material, most commonly silicon, enclosed in a glass or plastic casing. These can range in size with small versions used on watches and calculators to a system of hundreds of square metres of linked up to make an array to power large buildings.
When exposed to sunlight the semi-conducting material causes electrons in the materials’ atoms to be knocked loose. The electrons that are knocked loose then flow through the material to produce an electric current known as a direct current (DC).
The direct current is carried through wiring to an inverter which converts the current to alternating current (AC) so it can be connected to your property’s main electricity distribution board which either used within the home or fed back into the national grid.
Figures and Calculations
A solar inverter is one of the most important elements of the solar electric power system. It converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into alternating 240V current (AC). This AC electricity then can be fed into your home to operate your appliances.
The electricity that is not used in your home is then either fed into the grid (electrical power lines) or into home battery storage. New hybrid inverters include an integrated battery management system and digital monitoring of the system, so you can see what exactly your producing with your system.