Iconic Engineering Limited

Off-Grid Solar System Company in Bangladesh

Energy demand in Bangladesh is growing rapidly. Due to power shortages, load shedding, and rising fossil fuel prices, many are turning to renewable energy. Off-grid Solar Systems are an excellent solution, enabling you to provide electricity without relying on the national grid.

What is off-grid Solar System?

An off-grid solar system is a solar power system that is not connected to the national power grid. This system generates electricity entirely from solar energy and stores the generated electricity in batteries. This stored electricity is later used in homes, businesses, or agricultural purposes.

Main Components of an Off-Grid Solar System

1. Solar Panels

Convert sunlight into electrical energy.
Monocrystalline or polycrystalline panels are usually used.
The main source of electricity generation in off-grid systems.

2. Charge Controller

Helps to properly store the DC electricity from the solar panel in the battery.
Protects the battery from overcharging or over-discharging.
PWM or MPPT-type controllers are more commonly used.

3. Battery Bank

Stores the generated electricity so that electricity can be used at night or on cloudy days.
Deep-cycle lead-acid or Lithium-ion batteries are usually used.
The exact capacity depends on the daily electricity demand.

4. Inverter

Converts DC electricity stored in the battery into AC electricity, which is used by home appliances.
Off-grid systems require a powerful and reliable inverter.

5. Mounting Structure

Used to mount solar panels on the roof or ground.
Helps ensure a durable and correct angle installation.

6. Cables & Wiring

Establishes a safe electrical connection between the solar panels, charge controller, battery, and inverter.
Using high-quality and weather-resistant cables is essential.

7. Protection Devices

Circuit breakers, fuses, earthing systems, etc., protect the system from overvoltage, short circuits, or lightning strikes.

How Off-Grid Solar Systems Work

An off-grid solar system is a solar power system that is not connected to the power grid. It uses its own solar energy to provide electricity and usually stores the energy in batteries. As a result, electricity can be used even when the grid is not available.

Below is a step-by-step explanation of how an off-grid solar system works:

Solar Panel: Solar panels convert sunlight into electrical energy (DC – Direct Current). The more sunlight that falls on the panel, the more electricity is generated.
Charge Controller: The charge controller helps charge the battery properly. It controls the voltage and current so that the battery is not overcharged or damaged.
Battery Bank: The battery stores the excess solar energy generated during the day. At night or when there is less sunlight, electricity is supplied from this battery.
Inverter: The inverter converts DC electricity into AC (Alternating Current) electricity. Home or business equipment (such as lights, fans, refrigerators) usually uses AC electricity.
Load: Load refers to the electrical appliances you use. The electricity from the inverter is supplied directly to the load.

Briefly about the working steps:

Sunlight collection: Solar panels collect sunlight and convert it into DC electricity.
Power control: The charge controller controls the DC electricity and helps in storing it properly in the battery.
Power storage: The battery stores the electricity generated during the day, so that it can be used at night or on cloudy days.
Power conversion: The inverter converts the DC electricity from the battery into AC electricity, which is used to run household appliances.
Power supply: The stored electricity is supplied to the household or institutional appliances as needed.

Why an Off-Grid Solar System is Important for Bangladesh

Bangladesh is an electricity-dependent country, where the electricity demand is increasing day by day. However, many rural and remote areas still do not have grid connections, or the power supply is unstable. In this situation, off-grid solar systems are an effective solution.

The reasons are as follows:

Electricity Crisis Solution: Establishing grid connections in remote areas of the country is costly and time-consuming. Off-grid solar systems can easily provide electricity to these areas.
Sustainable Energy Generation: As solar systems are a renewable energy source, they provide an environmentally friendly and long-term permanent solution.
Load shedding problem reduction: Using off-grid solar systems reduces pressure on the national grid and reduces load shedding in cities and villages.
Environmental protection: Using solar energy instead of fossil fuel-based power generation reduces carbon emissions and reduces the risk of climate change.
Cost-effective: Once installed, the maintenance cost of solar systems is very low and saves electricity bills in the long run.
Industrial and Business Development: In areas where small industries or businesses have not developed due to lack of electricity facilities, off-grid solar systems create new development opportunities.

Benefits of Off-Grid Solar Systems

An off-grid solar system is a solar power system that does not rely on the national grid (electricity connection). It is very effective for providing electricity, especially in rural and remote areas. Below are the main benefits of an off-grid solar system:

No hassle with electricity bills: In an off-grid solar system, electricity generation and consumption are completely under your control. So there is no need to pay monthly electricity bills.
Electricity storage in batteries: In this system, the electricity generated by solar panels is stored in batteries. As a result, electricity can be used at night or in bad weather.
No need for grid connection: In remote villages, mountainous areas, or island areas where the grid line has not reached, off-grid solar systems are the best solution for providing electricity.
Eco-friendly and sustainable: Solar energy is 100% renewable and does not pollute the environment. It helps combat climate change by reducing carbon emissions.
Long-term cost-effective solution: Although the initial installation cost is very low, the subsequent maintenance cost is very low. In the long run, it saves on electricity costs.
No problem with power outages: Even if there is load shedding or a power outage on the national grid, the off-grid system provides uninterrupted power.
Independent power system: Reduces energy dependence through its own power generation system, which is especially beneficial for agriculture, educational institutions, businesses, or remote households.

Off-Grid Solar Systems Limitations

Although off-grid systems are highly effective, there are some limitations:

High initial cost: In off-grid solar systems, the initial cost of batteries, inverters, and other components is high. So for many, it becomes expensive at the beginning.
Battery dependency: This system depends entirely on batteries. If the battery is damaged or discharged, the power supply stops. The cost of replacing the battery is also high.
Limited power storage capacity: Off-grid systems cannot store as much power as the battery has. As a result, power shortages occur on cloudy or rainy days for several days in a row.
Maintenance requirements: Batteries and inverters need to be maintained and tested regularly. It is important to change the battery water, keep the connection correct, and keep it clean.
Takes time to recover long-term investment: Due to the high initial cost, it takes a relatively long time to recover the investment, especially in small-scale systems.
Limited load capacity: Off-grid systems are not suitable for running large industries or heavy machinery. This is mainly useful for small houses, shops or remote areas.
Dependence on weather: If there is not enough sunlight on cloudy, rainy, or winter days, the solar panel cannot generate enough electricity. As a result, the power supply may be disrupted.

Things to Know Before Installing an off-grid Solar System

If you are thinking about installing an off-grid solar system for your home or business, keep the following points in mind first. This will help you make the right investment and reduce hassle.

1. Understand the power demand

Write down how long each appliance needs to run each day.
For example: fan, light, fridge, water pump, etc.
You can choose the right system only if you know the total demand.

2. Get good-quality solar panels

Getting high-efficiency panels will produce more electricity.
Choose a brand that is sustainable in the local climate.
Choose the right size (watts) so that it meets the needs in the future.

3. Importance of batteries

The better the battery, the more durable and backup it will be.
Lithium-ion batteries last longer and require less maintenance.
Choose a capacity (Ah) that can provide 2–3 days of backup.

4. Inverter and charge controller

Inverters and MPPT charge controllers make electricity conversion and storage efficient.
If the size is not correct, electricity is wasted.
Get a good brand so that it runs for a long time without problems.

5. Correct installation location

The roof or open area should be free of shade.
It is better to install the panels facing south and at a slope angle of 20°–25°.
Choose a mounting structure that can withstand storms or winds.

6. Seasonal challenges

There is less sunlight during the rainy season and winter, so battery backup is more necessary.
If you take the system size a little larger, you will be safe all year round.

7. Maintenance should be easy

The panels should be cleaned regularly.
The batteries and inverters should be checked every few months.
The people from whom you buy the system should be able to provide quick service.

8. Budget and investment

Although the initial cost may seem high, the electricity bill will be saved in the long run.
Buying quality equipment reduces maintenance costs.
If there is government assistance or subsidy, take advantage of it.

The Future of Off-Grid Solar Systems in Bangladesh

The Bangladesh government is emphasizing the use of Renewable Energy. It plans to generate a large portion of its electricity from renewable sources by 2041. As a result, the market for off-grid solar systems will grow even faster.

Off-grid solar systems are an effective and environmentally friendly alternative to sustainable power supply solutions in Bangladesh. It is becoming essential, especially in rural or remote areas where grid electricity is not available.

If you are looking for a reliable and experienced Off-Grid Solar System Company in Bangladesh, then Iconic Engineering Limited can be your best partner. They provide quality products and professional installation services, which ensure long-term power solutions.