An off-grid solar system is also known as a stand alone solar system. Why? Because it’s not connected to the grid. It works as an isolated island of its own. An off grid solar power plant is an intricate setup of the following components.

1. Solar panels (modules)


2. Mounting structures


3. Batteries


4. Solar charge controller


5. Solar inverter


6. Solar accessories

Working of an off grid solar system for home

The working of an off grid pv system isn’t super complex. We’ve simplified it for you. Have a look.

Components of on-grid solar system

1. Solar panels

Solar panels are made up of solar cells. When they’re made of one single silicon crystal, the resulting panel is monocrystalline. When they’re made of multiple silicon crystals, the resulting panel is polycrystalline (multicrystalline).

The efficiency of both types differ but they work the same way.

Off grid solar panels trap sunlight and convert it into DC electricity. The one thing that should be taken care of at the time of installation is that the panels should not be clouded by shadows.

2. Solar inverter

The power from solar panels is in the form of direct current. Home appliances run on AC power. This is where the solar inverter comes into the picture. It converts DC power into AC power. An off grid solar inverter, just like an on-grid inverter, is the heart of the solar system.

3. Batteries

Off grid solar functions on batteries. During the sunshine hours, the electricity that the panels are producing is used to run the house. Whatever is extra is used to charge the batteries. That same power from the battery is then used to keep the house running at night.

4. Charge controller

The charge controller in off grid solar controls the charge. It’s in parallel with the solar inverter. The panels produce electricity that goes into the charge controller. It’s the charge control that feeds power into the inverter as well as uses the extra units to charge the batteries.

5. Mounting structures

You have the panels and the inverter, but without proper mounting structures, the system cannot be set up. The mounting structures should be at a proper tilt angle (near perpendicular to the sun for as long as possible) so that they receive maximum sunlight.

Hot-dipped zinc galvanized mounting structures by SolarSquare are unbeatable quality products.

6. Solar accessories

You know the major components of an off grid solar system but there are other accessories without which the system will not be safe.

Here are the accessories we’re talking about:

• DC cables and DC combiner box
• AC cables and AC combiner box
• MC4 connectors
• Earthing strips and conduit trays
• Lightning arrester

Benefits of using a stand alone solar system

• A solar power off grid system is the only option in places where there’s no grid; mostly in rural areas.
• Off grid power is clean and green. Not only does it power homes where there’s no grid, but it also ensures that no pollution is being caused in lieu of generating electricity.
• The cost of fossil-fuel-based electricity from the grid is super expensive. So, even though the investment in an off grid solar system takes a little longer to break even, it is still more economical than having to pay for grid electricity.