Solar Panels in Pakistan

Best Brands for Solar Panels in the World

Several renowned brands are well-known for producing high-quality solar panels. Below are the details of some of the world’s top solar panel brands:

SunPower:

SunPower is a renowned solar panel manufacturer noted for producing highly efficient and dependable panels. They use cutting-edge technology to attain some of the industry’s greatest efficiency rates.

LG Solar:

LG Solar is well-known for its solar panels’ durability and performance. They are dedicated to producing high-quality products that are supported by considerable research and development.

JinkoSolar:

JinkoSolar is one of the world’s largest solar panel producers, offering a diverse selection of dependable and cost-effective panels. They prioritize innovation and have constantly upgraded their product offerings.

Canadian Solar:

Canadian Solar is a well-known brand known for its high-quality panels and considerable industry experience. They provide a wide range of solar panels ideal for a variety of purposes.

Trina Solar:

Trina Solar is a market leader in integrated solar energy solutions. They provide efficient and dependable panels that have received praise for their efficiency and durability.

Which Solar Panels Are Most Efficient in Pakistan?

When it comes to determining the most efficient solar panels in Pakistan, several factors need to be considered, such as the conversion efficiency, temperature coefficient, and overall performance in different environmental conditions. The efficiency of solar panels refers to the ability to convert sunlight into usable electricity.

Types of Solar Panels in Pakistan

The two most common types are Monocrystalline and Polycrystalline. Their PV solar plates feature crystalline silicon cell technology which differs in both types. These counterparts also have some other distinctive variables which give a better overview and influence users’ choices. It includes aesthetics, volume, construction, cost, space efficiency, performance in certain environments, and purity of silicon used in the making. For a better understanding, each of these two types is reviewed in detail below:

Monocrystalline Solar Panels

Monocrystalline solar panels are recognized for their high-efficiency rates. Due to their construction using single-crystal silicon, they can achieve higher power outputs and perform well under various weather conditions. Monocrystalline panels typically have efficiency rates ranging from 15% to 20%. Monocrystalline solar panels are considered the premium solar product out of these two with relatively high efficiency. These panels are created based on the most developed technology being used for ages. Resilient and reliable, the main characteristics of monocrystalline solar panels are explained here under.

PERC (Passivated Emitter Rear Cell) Solar Panels

PERC solar panels have gained popularity for their enhanced efficiency. These panels feature a rear passivation layer that helps capture more sunlight and increase the overall electricity generation. PERC solar panels can offer efficiency rates in the range of 18% to 22%.

Construction

As obvious by its name, monocrystalline solar panels are made from single-crystal silicon. A method termed ‘Czochralski’ is adopted for the formation of large cylindrical-shaped silicon ingots using the drawn technique. These ingots are then sliced from the four sides to make silicon wafers.

Aesthetic

The monocrystalline panels can be distinguished easily from the cut-out edges of the ingots. Other prominent visual highlights of these solar panels are even color and uniform look.

Performance Efficiency

Since the highest grade silicon is used during the construction of monocrystalline solar panels, they yield the highest power outputs. The solar cells composed of single-crystal silicon allow more space for electrons to generate a flow of electricity. On average, this type of solar panel has an efficiency rate of 15-20%.

Space Efficiency

For solar panel installations, the availability of adequate space is highly desirable for both options; on the roof or on the ground. The monocrystalline solar panels are space efficient and require lesser space as compared to their other counterpart.

Longevity

These solar panels are given a 25-year warranty by the manufacturers which is considered ideal. However, most of the time it lasts much longer beyond the given period.

Performance in Extreme Climatic Conditions

Monocrystalline solar panels tend to perform better in low-light conditions or warm weather as compared to other types.

Polycrystalline Solar Panels

Polycrystalline solar panel also known as multi-crystalline solar panels have comparatively newer technology and was first introduced in 1981. Unlike monocrystalline panels, the Czochralski process is not followed for the making of these panels. Following is a quick review of polycrystalline solar panels.

Construction

Multicrystalline solar panels are developed when many fragments of raw silicon are melted and then cooled down. After cooling, it is sliced into square wafers to form the panel.

Aesthetic

Contrary to monocrystalline panels, these solar panels have perfectly rectangular edges. The solar cells in these panels don’t have a uniform appearance as they tend to look in the monocrystalline panels.  However, these panels can be easily identified with their distinctive color and prominent graining or speckled outlook.

Performance Efficiency

Polycrystalline solar panels have performance efficiency close to the monocrystalline ones with an efficiency rate ranging from 14-16% on average. As there are many silicon crystals in each solar cell, electrons can’t move much freely resulting in slightly less efficiency.

Space Efficiency

Polycrystalline solar panels can be a suitable option if enough space is available as these panels require larger space. If there is any limitation or space constraints, these panels won’t be a viable choice.

Longevity

As far as longevity is concerned, the polycrystalline solar panels come up with 25 years warranty which is good enough. If maintenance is maintained over time, more likely this time duration can exceed.

Performance in Extreme Climatic Conditions

The performance of polycrystalline solar panels suffers in certain climate conditions like snowy weather or low-light situations. As they tend to have lesser heat tolerance, their performance drops as the temperature rises to the peak.

Monocrystalline Solar Panel vs Polycrystalline Solar Panel

Following is a brief head-to-head comparison of these two types of solar panels on some key metrics to help you to make the right choice:

	Monocrystalline solar panels
Technology	Single-crystal Silicon Solar Cell
Cost	More expensive
Efficiency	More efficient
Space Efficiency	Requires less space
Appearance	Blackish hue, Uniform solar cells, Aesthetically pleasing
Longevity	25+ years, including 25 years Warranty by Manufacturers
Major Brands	Canadian Solar, Sunpower, JA Solar, Longi SOlar

 

	Polycrystalline solar panels
Technology	Multi-crystalline Solar Cell
Cost	Lesser in cost
Efficiency	Slightly less efficient
Space Efficiency	Requires more space
Appearance	Bluish  hue, Speckled or Grained
Longevity	25+ years, including 25 years Warranty by Manufacturers
Major Brands	Hanwha, Kyocera, Hyundai, SolarWorld, Trina

Bifacial Solar Panels in Pakistan:

Bifacial solar panels are designed to capture sunlight from both sides, utilizing the reflection of sunlight from the ground or surrounding surfaces. This unique feature increases their overall energy generation capacity. The efficiency of bifacial solar panels can vary depending on factors such as albedo (surface reflectivity) and mounting conditions.

It is important to note that while high efficiency is desirable, other factors such as cost, space availability, and specific project requirements should also be considered when selecting solar panels in Pakistan. Consulting with a reputable solar energy provider can help determine the most suitable and efficient solar panels for individual needs.

Bifacial solar panels are a type of solar panel that can generate electricity from both sides of the panel. Unlike traditional solar panels that only capture sunlight from the front side, bifacial panels are designed to absorb light from the front and rear sides, including light reflected from the ground or surrounding surfaces.

These panels consist of transparent materials on both sides, allowing light to pass through and reach the rear surface of the solar cells. The rear surface is equipped with additional photovoltaic cells that can convert the reflected and diffuse light into electricity.

Bifacial solar panels offer several advantages over traditional panels. By capturing light from multiple angles, they can increase the overall energy generation capacity. They are also less affected by shading, as they can still generate electricity from the rear side even if the front side is partially shaded. Additionally, their performance is optimized in environments with high albedo, such as snowy or highly reflective surfaces.

Bifacial solar panels are commonly used in large-scale solar installations, such as solar farms and commercial projects, where maximizing energy production and optimizing space utilization are crucial factors.

It is worth noting that the efficiency and performance of night solar panels and bifacial solar panels can vary depending on the specific technology and design used. Consulting with a solar energy professional can provide detailed information and guidance on the suitability and benefits of these specialized solar panel types for specific applications.

Night Solar Panels in Pakistan:

Night solar panels, also known as nocturnal solar panels, are a specialized type of solar panel designed to generate electricity during nighttime or low-light conditions. These panels utilize advanced technology to harness ambient light, such as moonlight or artificial light, to produce a small amount of electricity.

While traditional solar panels rely solely on sunlight to generate power, night solar panels incorporate specialized photovoltaic cells that are sensitive to low-light conditions. These cells can capture and convert even the faintest amount of light into electricity, enabling them to operate effectively during the night.

Night solar panels are commonly used in applications where a small amount of power is required during nighttime, such as outdoor lighting, security systems, and remote monitoring devices. They provide a convenient and sustainable solution for powering these applications without the need for external power sources or batteries.

Maintenance of Solar Panels:

Proper maintenance is required to guarantee that solar panels operate well and last as long as possible. Here are some suggestions for upkeep:

Cleaning

Clean the surface of the solar panels regularly to enhance sunlight absorption. Remove any dirt, dust, or debris using a soft brush or a non-abrasive sponge. The use of harsh chemicals or abrasive materials that can harm the panels should be avoided.

Check for Shading

Inspect the area around the solar panels regularly to verify there are no objects that cast shadows on them. Shading can greatly lower the output of the panel, thus cutting trees or eliminating any items that block sunlight is required.

Inspect for Damage

Inspect the panels regularly for any evidence of physical damage, such as cracks or fractures. Contact a professional for repairs or replacement if any damage is discovered.

Monitor Performance

Keep track of the performance of the solar panels by measuring the amount of electricity produced. If you detect a large decline in output, it could signal a problem that needs to be addressed.

Professional Maintenance

Consider having a qualified technician do periodic maintenance checks. They can inspect, clean, and maintain the entire solar panel system.