As the name suggests, the off-grid solar system does not stay connected to the utility grid. This type of home solar system is the best in remote locations, far off from any power grid.

An off-grid solar system is the best option for places where there are no grids for distributing electricity. You can stay completely free from the hassles of using electricity from the grid.

What is an Off-Grid Solar System?

Off-grid solar system stores the excess solar electricity in their batteries so that you can run your appliances at night or in the time when the solar electricity generation becomes insufficient. The off-grid solar setup includes equipment like solar panels, off-grid solar inverter, solar battery etc. 

During the day the electricity produced will run to the connected appliances. Any excess energy will be stored in the battery. At night when there is no sunlight we can use the electricity stored in the battery. Therefore this system runs day and night.

How Does Off-Grid Solar System Work?

Let us go into a more detailed understanding of how off-grid solar systems operate in a step-by-step format:

Step 1: Capturing Solar Energy

Solar panels capture the energy of the sun and convert that into solar energy in direct current (DC).

Step 2: Controlling DC Voltage

The solar charge controller regulates the voltage of DC generated by the solar panels.

Step 3: DC to AC Conversion

Off-grid solar inverters convert the DC energy into AC to operate your home appliances.

Step 4: Electricity Usage

The off-grid solar system uses the generated electricity first in running home appliances and then, saves the excess power on the battery for future power requirements.

Components of Off-Grid Solar Systems and Their Working

Any off-grid solar system includes 4 major components which are solar panels, charge controller, inverter and battery bank. Check out in detail as to how these basic components of the off-grid solar system operate:

Solar Panels

Solar panels are major components of an off-grid solar system. It captures solar energy and converts that into direct current. Solar panels come with various numbers of solar cells, which can be 60, 72, 120, 132 or 144. There are different types of solar panels available in the market namely Mono-PERC, Poly-PERC, TOPCon, HJT, etc.

Charge Controller

The charge controller ensures that the batteries get electricity properly by regulating amperage and voltage. It maintains the health of batteries by controlling the electricity amount passing from the solar panel to the battery. Maximum Power Point Tracking (MPPT) and Pulse Width Modulation (PWM) are two major types of charge controllers. MPPT charge controllers are suitable for large solar systems. For a small size solar system, you need to install a PWM charge controller.

Inverter

The job of an inverter is to convert DC power into AC for supplying power to appliances in your home. The off-grid inverters send the extra power to the battery. There are different types of inverters available in the market for accommodating small to large loads. You need to choose an inverter depending on your off-grid load requirement.

Batteries

Batteries are a very important component of the off-grid solar system as they store batteries so that you can run your appliances when the energy generation is low or zero. It is one of the most expensive equipment, considering the price. Nowadays, two types of batteries are most popular in the solar power industry. These are Lithium batteries which come with a long lifespan of up to 10-15 years and Lead Acid batteries which can last up to 3-4 years.

Mounting of Off-Grid Solar Panel System

You can install your solar modules in three different ways:

  • Roof Mounting

    Solar modules on the roof of either a house or any other structure

  • Ground Mounting

    Mounting solar panels on concrete piers closer to the roof for better stability

  • Pole Mounting

    Mounting the solar modules on any concrete-secured pole in the ground

We at Das Energie Private Limited offer all these components at reasonable prices. Contact us to choose from the best of the brands in India and select the one that is best suited for your home or commercial needs.

Installation Process of Off-Grid Solar System with Das Energie

Here are the steps that you need to follow one after another for installing an off-grid solar system:

Step 1: Applying for Quotations

Fill in our solar panel installation application form with the correct details, including your energy requirement, monthly electricity bill, etc.

Step 2: Selecting Vendor’s Quotations

Our solar installation partners will read your requirements and reply to them with their quotations. You will have to check the equipment they will use, installation charges, equipment pricing, etc., and select a quote.

Step 3: Installation of Off-Grid Solar System

The off-grid solar installer will reach your locations with the required equipment. They will inspect the suitable solar installation area and start the installation process.

Advantages of Off-Grid Solar System

The off-grid solar system can be a really good alternative power source for remote regions with no electricity facility. Here are the major benefits of investing in off-grid solar power systems:

Staying Energy Independent

The off-grid solar system offers you complete freedom from the power grid. This means you will not remain tied to the utility grids in any way. By installing an off-grid solar power system at your home or any commercial area you will become self-sufficient in terms of generating energy for appliances.

Free From Paying Electricity Bills

As fossil fuels like coal, petroleum, oil and natural gas are finite resources and are depleting constantly, their prices are rising as well. This results in a surge in electricity bills. If you consider this point as well investing in off-grid is a better choice. It is a one-time investment when you are installing it and you will generate solar electricity for its lifetime, i.e., up to 25 years.

Installation Possible in Any Area

You can install an off-grid solar system anywhere, provided it faces the sun and does not get shade. This is because the equipment required for the installation of an off-grid system is not dependent on the power grid. The process of installation does not rely on complex infrastructure and is straightforward

Easier Installation

Since an off-grid solar system is independent of the grid, its installation process is much more straightforward. Knowledge of common solar connection mechanisms is enough for any homeowner to be able to install an off-grid solar power system. We suggest you get the off-grid solar installation service from our expert installation partner.

Avoid Power Outages

Power cuts can occur without prior warning. Whether it is short-term or long-term, living without electricity can be a huge inconvenience. There might be some faults that might even take weeks to restore. Natural calamities might also be the reason behind the loss of power. Off-grid solar systems are reliable in this regard as the batteries can store energy and are always ready to deal with any type of disaster.

Good Return on Investment

The price of the system comes to a break-even point after 6 to 7 years you can earn quite a lot of profit. An off-grid solar system with 3KW of capacity can generate up to 12 units of electricity per day. That means you will be able to generate and use up to 360 units of power per month.

Environment Friendly

Thermal power plants emit large amount of greenhouse gases in the air, causing global warming. By installing an off-grid solar system in your house, you can reduce the carbon footprint. Currently, people are shifting to solar power to keep Mother Nature green and clean.

Cost of Off-Grid Solar System

When you are calculating the cost of an off-grid solar system you need to add the cost of all the components required as well as installation costs. The most expensive item in an off-grid solar system is the battery. To give you an idea, a 12V single battery for a 1KW off-grid solar system comes at a cost of around Rs.60,000. 

The prices can vary as per the backup requirements. If you need a backup for 1 hour you can manage with a small battery. However, if backup is needed for 6 to 7 hours, the battery size will increase and so will the overall price of the system. 

Here is a list of the approximate cost of off-grid solar panel installation according to capacity:

Capacity Installation Price
1 kW ₹1,50,000
3 kW ₹3,50,000
5 kW ₹6,80,000
8 kW ₹11,50,000
10 kW ₹13,00,000
Off Grid Solar System
Off Grid Solar System

Return on Investment By Using Off-Grid Solar Power System

In comparison to on-grid solar, off-grid solar system takes more time to offer the actual return on investment. This is because the batteries are quite expensive therefore the price takes longer to break even.

It takes approximately 6 to 7 years for the price to break even.

Want to install an off-grid solar system in your house? Contact Das Energie Private Limited to get detailed quotations from vetted solar installers from your location. You can compare all the received quotes and choose the best installer for you. Apply for off grid solar quotes now.

Frequently Asked Questions

No, off-grid solar systems cannot run without batteries as there will be no other way to store electricity for times when the sun is not up.

The answer to this question is yes. You can either opt for a solar air conditioner or convert your AC load to solar energy. In case you have numerous AC units at your home or office it is best to add more solar panels with higher kW ratings.

Off-grid solar system includes batteries that store solar power so that it can be used at night when the sun is not shining.

Every component in an off-grid solar system is quite costly therefore you need to choose the products of the best brands. Whether it is the battery, solar panels or inverter, all these need to be of A1 quality. You need to decide whether it is monocrystalline that is more suitable or polycrystalline. We offer solar systems from all the top brands in India. Therefore you can choose which is best suited for you.

You need to choose a spot in your home or any commercial area where the sunlight will not be obstructed. The most suitable places would be the rooftop or ground. Apart from that you also need to make sure that the solar panels are tilted in the right direction. When the professionals come to install the solar system make sure that the solar panel is screwed to the stand using holes that are present on the side. Find the junction box that is present behind the panel. Make sure that the positive terminal is connected to the red wire and the negative terminal is connected to the black.

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