Off-grid Solar System The simplified block diagram above shows a simple off-grid (stand-alone) solar electric system. Whilst the detail will vary, this design forms the basis of most stand-alone systems. It is typical of the installations you will find in recreational vehicles, caravans, boats, and buildings that do not have a conventional power supply. This …
Generally, stand-alone (off-grid) and smaller grid fallback PV systems run at low voltages, typically between 12 and 48 volts. This is because batteries are low-voltage units and so building a stand-alone system at a low voltage is a simple, flexible and safe approach. Grid-tie PV systems tend to be larger installations, often generating several kilowatts …
Grid-tie is now hugely popular in Europe, North America, China and Australia. This is due to the availability of grants to reduce the installation costs, the ability to earn money through feed-in tariffs and the opportunity to sell electricity back into the electricity companies. In a grid-tie system, your home runs on solar power during …
