In Pakistan, many people are considering getting a solar panel system. Not only because it is energy efficient, but also because they want to get rid of the high electricity bills. However, when people are doing so, it is really important to know the difference between the different types of solar panel systems. Just like on-grid and hybrid solar systems, off-grid solar systems are another popular type of solar system that you need to know. Let’s explore what it has to offer us.
What is an Off-Grid Solar System?
Unlike an on-grid solar system, which is attached to the main grid, an off-grid solar system works differently. It is not attached to the main grid via a net metering system instead, it is attached to the batteries through an inverter. The generated electricity is stored in the batteries without having you relying on the main grid. However, when getting an off-grid solar system installed, you need to opt for the right solar batteries for better performance.
Advantages of an Off-Grid Solar System
- No dependency on the main grid.
- Stores electricity when solar panels are not working, such as at night.
Disadvantages of an Off-Grid Solar System
- They are more costly as compared to the on-grid systems. The batteries are attached to the off-grid system, which adds to the cost of the solar system.
- When the solar system does not work, such as in cloudy weather, there might be no energy source.
- Requires high battery maintenance.
How To Improve the Off-Grid Solar System Working?
The following are some ways you can improve the working of the solar system:
Solar Battery Choice
Before you get an off-grid solar system, you need to know that there is a difference between solar batteries and normal batteries. Solar batteries are solely designed for solar systems with large storage capacities, unlike the other normal batteries that are designed for devices such as UPS. The following are some famous brands that you need to consider:
| Brands | Model | Price Range (Rs.) |
| Osaka | TA 3000 | 85,000 to 90,000 |
| AGS | EC 2200 Tall Tubular Battery | 50,000 to 55,000 |
| Narada | NPFC series 48V LiFePO | 340,000 to 350,000 |
Proper Maintenance
Solar panels require proper maintenance for high performance. As they are installed in open areas, there is are higher chances of damaging solar panels. The following are the things you need to consider for the proper maintenance of the solar panels:
- Make sure the panels are completely cleaned and there is no dust on them.
- Keep inspecting the panels to make sure there is no damage.
Right Solar Panel Angle
It is important to install the solar panels at the right angle to maximize their performance. The more solar panels get sunlight, the better their performance is. The following are the two important factors to consider when choosing the right solar panel angle:
| Title Angle | Azimuth Angle |
| The angle formed between the ground and the panel | The angle between the panel and the north pole |
| Requires seasonal changes | No changes required |
| This angle affects the amount of sunlight a solar panel gets | This angle affects when the sunlight hits the panels |
Final Verdict
You might see solar panels on most of the buildings and homes in Pakistan, as they are in high demand. However, it is important to know the difference among the three types of solar panels to make the best decision. An off-grid solar panel offers no dependency on the grid and stores electricity in the attached solar batteries. Furthermore, make sure you get the right solar panels and the right solar batteries for high performance.
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