Off Grid Solar System for Home with Battery Backup, 2023
The off-grid solar system is a battery based, independent solar system that does not need a utility grid to illuminate your places. It is a complete solar setup with solar panels, solar battery, and solar inverter, and is ideal to lighten a home even in a far off location. This solar system is more prominent as it comes with a power backup.
Like every other solar system, an off-grid solar system uses a solar panel to absorb sunlight and convert it into electricity. In the day time solar will run the connected load and balance energy will be stored in the solar battery. So in the daytime, the solar system runs home appliances generating electricity using sunlight and stores the extra energy into the battery bank. And at night when there is no sunlight, the appliances draw energy from the battery to keep running. Hence, the system works day and night.
Before you dive into the solar world, you must collect every single piece of information about the type of solar system to be installed. In this article, you will get answers to all your questions related to an off-grid solar system.
Spending money on a solar system is a one-time investment though a really huge one. If you have decided to add value to your home by installing a solar power plant, you must be aware of the price range of several solar systems.
“If you are facing power-cut problem or don’t have a reliable grid and also want to reduce your electricity bill, then off-grid solar system is recommended to you”
Off grid solar system with battery price for home starts from 1kW at Rs. 69,699 to 10kW @7 Lakh with installation of complete system. These are the complete solar combos with solar panels, solar invertersolar battery, structure, complete accessories to run your basic load of your home, business, school etc.
Solar System with Battery Price List 2023
Here is the complete list of off-grid solar system prices. Selling prices of different capacity solar system models are mentioned against their capacities along with their solar price per watt.
To estimate off-grid solar system prices, you must be aware of the components the system requires to work with. You can understand the importance of each of the components only after reading about its function. The list of these components is mentioned below.
Now the question arises- how do these components work to provide constant power? The working of these components is explained clearly through the below-mentioned steps.
The solar panels are the faces of the system that capture the sun’s energy. These devices convert the energy to DC power.
Then comes the use of a solar charge controller. The solar panels are wired with a solar charge controller to regulate the voltage of DC generated by the solar panel. The solar inverter cum controller will monitor and measure how much energy is being produced by the solar panel array; it has the ability to harvest the maximum possible energy.
This regulated DC gets stored in the battery bank wired with the solar charge controller. In the event of surplus availability of solar power and less load, it provides the possibility to store the energy in the battery and also cater the load simultaneously. The battery bank will allow excess solar energy to be stored and used later on when required.
Now, this stored power can be used any time using a solar inverter to convert DC into AC to power your home appliances.
Junction Box, AC & DC Cable, Fasteners, Cable Tie, Crimping Tool, Earthing Kit, Lighting Arrestor
Why install an off-grid solar system?
Knowing the benefits, increasing efficiency and decreasing prices, the number of people switching to the solar system, especially an off-grid solar system, is increasing extensively every day.
It is quite challenging to install utility lines while you live far away from them. Besides, it is costly and still, you cannot say much about its reliability. Moreover, you will have to pay a huge electricity bill.
On the other hand, an off-grid system is a good investment in the long run. It is efficient, reliable and environmentally friendly. It can supply sufficient power to your home without any power-cut problem. With this system, you can get non-stop solar power.
Hence, comparing these two power sources, the off-grid solar system is the obvious winner. It is the right solution for remote homeowners.
#7. Pros & Cons of Off-Grid Solar
People who believe in saving money while conserving nature find the system extremely attractive. Installing an off-grid solar system, you can decrease electricity costs to zero and avoid power outages. It eases installation at home and introduces a much better alternative power source for rural areas. Besides, it keeps the environment clean and green.
The benefits of this system are valuable enough to convince homeowners to neglect the drawbacks. Read about the pros and cons in detail and make your decision.
Pros - Advantage
It provides you with a battery backup of 6-48 hours as per use. Since it stores electricity, you can use it anytime you want provided the battery has enough of it.
This kind of solar system allows the customer to go off the grid. Residing in an isolated home will not bother you anymore in terms of electricity usage.
An off-grid solar system works without an electricity grid. So, you will not have to deal with electricity bills anymore.
A solar system installed to meet peak summer demand can power even a medium-sized air conditioning.
Savings from the system lead to a payback period of up to 5-7 years. After that, you get free power for many more years.
It can be installed anywhere as long as it faces the sun.
Cons - Disadvantage
Off-grid solar systems are more expensive and less efficient than on-grid solar systems.
No solar net metering possibilities and wastage of power if not in use and batteries are also full.
Battery may need to replace after 5 to 7 years (Re-investment)
Steps to Install an Off-Grid System
Once you decide to install an off-grid solar system the next step is installation. Though the steps are complex which calls for the need for professionals to install the solar system, focusing on individual steps can make it much easier. Install the system to reduce off-grid solar system prices using the guidelines mentioned below.
#1. Calculate your home load
Before making any investment, calculate your energy needs. You must know each type of load including-
Basic load (LED lights/Charging points/fan/etc.)
Large appliances (Refrigerator/Electric furnace)
Special loads (Solar Water Heater/Solar AC)
Calculating the load is not complex at all. Simply follow these steps-
Prepare a list of all the appliances you want to run using the solar system.
Estimate the time for which each of the appliances will run.
Find out the power rating of each appliance from the specification chart.
Using the formula – Watt Hour = Run Time × Product Power Rating,
You can find the Watt Hour of every individual gadget.
#2. Select the components and brand
The selection of components and brands should be done carefully keeping in mind that the investment is one-time. To help you select appropriate components, we have listed the top manufacturers of each component.
An off-grid solar system works best when installed on no sunlight obstructed areas like a ground or rooftop. No sunlight should be hindered and the solar panels should be tilted in the right direction. To mount the solar panels, follow these steps-
Screw the solar panel to the stand using holes located on the sides.
Find the junction box placed on the backside of the panel. The junction box has two signs (positive and negative) of polarity.
You have to use the red wire for positive and black for the negative terminal connection.
#4. Connect the Components
Since the system capacity you need for your home is not readily accessible, you’ll need to put in a small panel or batteries to fit the requirement. For the same purpose, you’ll need to connect the components in parallel and series connections.
#5. Wire the components
For wiring purposes, you’ll need to keep out your toolbox consisting of copper wire, meter, fuses, breaker and MC4 connector. And then-
Attach the charge controller to the battery connecting the negative wires of both the devices and then connecting the positive ones.
Now use the wires to connect the controller to the solar panel. Also, you’ll need an MC4 connector here.
#6. The system is installed!
#8. Subsidy on Off-Grid System
The government is providing a huge subsidy on solar in order to promote solar power and bring India forward in the field of solar. You can also take advantage of this subsidy programme by installing an off-grid solar system.The subsidy rates are:
An off-grid solar system is ideal for those who want to get rid of permanent cuts of electricity. This solar system is the ultimate solution for those who are suffering from a shortage of electricity and who do not have a reliable grid (government electricity supply). It is a self-sustainable system that ensures power supply throughout the day and at night as well.
As the name indicates, this system switches off the grid (main power grid) as a result of which you stop getting monthly electricity bills. This system allows you to live in any part of the country no matter how far it is from the power grid.
In an off grid solar system you can store the excess power produced by a solar panel in the solar battery. You can use the stored power at nights or when the panels are not generating the power.
It depends on your required battery backup. For a 1kW solar system, 2 batteries of 150 AH are needed. If you want more battery backup then you need to fix more batteries otherwise vise-versa.
Battery backup time depends upon your consumption or connected load. An average battery backup of a solar battery is designed for 4-8 hours. If you are running your basic load then it provides more backup and if you are connecting your heavy load then the backup time will be reduced.
There are many reputed brands in solar like Luminous solar, Havells solar, Sukam solar and many more. All solar products of these manufacturers are best in their own way. You can choose any solar brand as per your choice.
MPPT solar inverter can produce up to 96% power while PWM solar inverters can produce only 70% of total power. So comparatively MPPT inverter is better than PWM inverter.
Solar regulator is also known as a charge controller. It is a small electronic device which controls the voltage of power, passing into the existing or non-solar battery.
Yes, you should buy a complete system of a single brand. Reasons: (1) You will never face issues regarding after sale service. A single company will provide you with a solar panel, inverter and battery related solution. (2) If you buy solar components from various brands then you will have to pay more GST as it is 28% on solar battery, 18% on inverter and 5% on solar panel but on complete solar system it is only 5%.
