An off-grid solar system (off-the-grid, standalone) is the obvious alternative to one that is grid-tied.
For homeowners who cant always be access to the grid, off-grid solar systems are usually out of question.
Advantages of Off-Grid Solar Systems
1. You become completely independent from external energy supplies
2. You can combine different energy sources such as PV, wind energy and hydropower
3.You can expand or change your system on a modular basis at any time
Off grid system is usually composed of solar panels. connector, inverter, battery and mounting system.
