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The use of solar panels has increased significantly compared to before, and the biggest reason for this is the rise in electricity bills. As electricity bills have started to increase, people are turning towards solar panels because the initial cost of solar panels can eventually lead to free electricity.
However, today, most homes use a normal inverter battery setup. Those who already have a normal inverter and battery setup might find it challenging to switch to a new setup, so many individuals contemplate how to install solar panels on their existing normal inverters to benefit from solar energy.
In reality, installing solar panels on a normal inverter is quite straightforward. You will only need a solar charge controller, which controls the power generated by the solar panels to charge your inverter’s battery.
Nowadays, many companies have also started producing solar management units. Their function is similar to a solar charge controller, but they also allow you to control the incoming grid supply to your home. This can significantly reduce your electricity bill.
What is needed to convert a normal inverter into a solar inverter
Many people often wonder what is required to install solar panels on a normal inverter, and the straightforward answer to this is that you only need a solar charge controller.
However, in the market, you’ll find various types of solar charge controllers, which can be confusing, and you might not understand which controller is right for you.
In the market, you mostly encounter two types of controllers:
- PWM (Pulse Width Modulation)
- MPPT (Maximum Power Point Tracking)
PWM solar charge controllers are relatively inexpensive. This technology is quite old and less efficient compared to MPPT. Consequently, its usage has gradually declined. On the other hand, MPPT controllers, which are more expensive, utilize newer technology. They can increase the power harvested from solar panels by up to 30% and charge your inverter’s battery more effectively. Therefore, MPPT solar charge controllers have become more popular.
You can purchase a solar charge controller with either of these technologies. For example, below are the prices of two controllers:
- Ashapower Neon 80 : 12/24/36/48V = Rs. 14500
- Smarten MPPT Solar Charge Controller 12/24V : 30A = Rs. 4500
- UTL PWM Solar Charge Controller 12/24V : 40A = Rs. 2200
Both solar charge controllers come with similar capacities, but there is a price difference between the two. Depending on your budget, you can choose the type of solar charge controller. Generally, the MPPT solar charge controller is a better option due to its enhanced performance.
Types Of Solar Panels And Solar Panel Prices
How to choose the perfect charge controller
The most important question is how powerful of a controller you should purchase. To determine this, you first need to ascertain how many watts of solar panels you want to install on your inverter.
The more wattage of panels you intend to install, the more expensive the solar charge controller you will need to buy. Using the Smarten company’s solar charge controller mentioned above, you can install 500-watt panels on an inverter with one battery, and for inverters with two batteries, you can install 1000-watt solar panels.
If you require more solar panels than this—for instance, if you have an inverter with only one battery but wish to install 1 kW of solar panels on it—you will need to purchase a larger solar charge controller. This will be slightly more expensive. Below are two companies whose solar charge controllers allow you to install up to 1 kilowatt of panels on an inverter with a single battery.
Ashapower neon 80
Price Check
With the help of either of these solar panels, you can install 1 kilowatt of panels on a single-battery system and 2 kilowatts of panels on a dual-battery system.
However, if you intend to purchase any one of these solar charge controllers for a single battery, then this controller may not suit your needs. It is recommended that you purchase it for at least a dual-battery inverter system. Ashapower company’s solar charge controller, for example, can be used on systems ranging from one battery to four battery setups.
Using Ashapower company’s solar charge controller, you can install 1 kilowatt of panels on a single-battery system, 2 kilowatts on a dual-battery system, 3 kilowatts on a three-battery system, and 4 kilowatts on a four-battery system.
You should consider purchasing this solar charge controller when you plan to use it on a Double -battery system and potentially on a four-battery system in the future, as it is relatively more expensive. If you are contemplating using it for a single-battery system, it might be a better option to invest in a new MPPT-type solar inverter, as it could provide you with a cost-effective alternative.
Luminous Solar Panel Price In India
Solar Charge Controller Connection
If you have a solar charge controller and solar panels on hand, you can easily connect them. However, first, you need to install your solar panels and connect the cables from the solar panels to your solar charge controller.
You need to place the connection near the battery, as the solar charge controller’s connections will be directly with the battery, and there is no involvement with the inverter. Below is a connection diagram showing the setup, which is for Ashapower company’s solar charge controller.
Connect Battery
Connect the battery’s positive (+) terminal to the controller’s positive terminal, and the battery’s negative (-) terminal to the controller’s negative terminal. Follow the proper polarity, of course.
Connect Solar Panels
Your solar panels should be connected through cables to the solar charge controller. Typically, the controller will include terminals marked “PV” (Photovoltaic). Connect the solar panel’s positive (+) terminal to the controller’s positive PV terminal and its negative (-) terminal to the controller’s negative PV terminal.
Which is connected to the Mains supply going into the inverter, along with the controller, and then it is fed into the inverter. The benefit of this is realized when your battery becomes fully charged; the solar charge controller cuts off the supply from the grid that goes into the inverter.
This ensures that your load continues to be powered by the inverter, and the grid supply is not utilized, resulting in a significant reduction in your electricity bill.
This way, you need to connect the solar charge controller with the panels and the battery of the inverter, effectively transforming your regular inverter into a solar inverter.
However, in today’s times, solar inverters come with a variety of features that you might not find in a system using this solar charge controller. If your budget allows, I would recommend considering purchasing a new solar inverter, as it offers more benefits compared to a system using this solar charge controller.
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