LONGi 590W Bifacial Solar Panel

Overview of the LONGi 590W Bifacial Solar Panel

The LONGi 590W Bifacial Solar Panel combines a high rated output with bifacial technology and a dual-glass design. Its exact model is LR5-72HGD-590M, delivering 590W under Standard Test Conditions (STC).

With 22.8% module efficiency, this panel can help project designers use the available installation area effectively. Its bifacial construction can also capture suitable light reaching the rear side of the module. The actual additional energy depends on installation height, ground reflectivity, row spacing, shading and the surrounding environment.

For businesses, industrial facilities and large solar installations in Pakistan, this panel is worth considering when the system design calls for a high-wattage bifacial module with long-term power output coverage.

Why Choose the LONGi 590W Bifacial Solar Panel?

1. 590W Rated Power

The panel provides 590 watts of rated power, making it a suitable option for solar projects designed around high-output modules. The final number of panels required depends on the total system capacity, inverter design, site conditions and energy requirements.

2. 22.8% Module Efficiency

Its 22.8% module efficiency helps convert sunlight into electrical power across the panel’s surface. This is useful when designers need to balance generation capacity with the space available for installation.

3. Bifacial Energy Generation

The bifacial design allows the panel to receive sunlight from the front and suitable reflected light from the rear. Its 80±5% bifaciality describes the rear-side power capability relative to the front-side reference under applicable test conditions. It does not mean the panel automatically produces 80% more energy.

4. Dual-Glass Construction

The module uses 2.0mm + 2.0mm heat-strengthened glass. Dual-glass construction provides a protective enclosure for the cells and is relevant to installations where module durability and long-term outdoor exposure are important considerations.

5. Long-Term Power Output Coverage

The panel includes a 12-year materials and processing warranty and a 30-year extra linear power output warranty. Buyers should review the applicable warranty terms and claim conditions before purchasing.

Best Applications for the LONGi 590W Solar Panel

The LONGi 590W bifacial solar panel may suit:

• Commercial solar systems designed for business premises.

• Industrial solar installations where the mounting structure and electrical design support this module.

• Utility-scale solar projects using appropriately engineered mounting systems.

• Ground-mounted solar arrays where rear-side light can reach the panel.

• Solar projects with sufficient installation space and suitable system voltage design.

• Installations seeking high-wattage modules to help manage the total module count.

The best results depend on proper system sizing, installation quality, orientation, shading control and the conditions at the site.

When This Solar Panel May Not Be the Right Choice

This panel may not be the best fit for every installation.

• Small rooftops: The module measures 2278 × 1134mm, so available roof space and handling access must be checked.

• Installations with restricted access: Its 31.8kg weight requires appropriate lifting, handling and mounting arrangements.

• Sites with little rear-side light: Bifacial energy gains may be limited when the rear of the panel is blocked or receives little reflected light.

• Incompatible electrical systems: The string design must account for operating voltage, open-circuit voltage, current and inverter limits.

• Projects without suitable mounting support: The structure must be designed for site-specific wind, load and installation conditions.

Before buying, confirm that the panel dimensions and electrical characteristics match the planned system.

Cell and Module Technology

The LONGi LR5-72HGD-590M uses HPDC cell technology and a 144-cell configuration arranged in a 6×24 layout. Its bifacial structure allows the rear side to contribute to energy generation when the installation environment provides suitable reflected light.

The module uses dual heat-strengthened glass and an anodized aluminium alloy frame. Its junction box has an IP68 protection rating and incorporates three bypass diodes.

These design features should be considered together with the mounting structure, string configuration, environmental conditions and inverter specifications when planning a solar installation.

Technical Specifications of the LONGi 590W Bifacial Solar Panel

Electrical Performance and Power Degradation

The 590W rated output is measured under Standard Test Conditions. Actual generation varies with sunlight intensity, module temperature, orientation, shading, dust and other site conditions.

The panel’s temperature coefficient for maximum power is −0.280%/°C. This indicates that its maximum power output decreases as cell temperature rises above the reference temperature, all else being equal.

Its stated power degradation profile is less than 1% in the first year, followed by 0.4% per year during years 2–30. These figures describe the power-output warranty profile; they are not a promise of the actual energy yield of a particular installation.

Bifacial Performance and Rear-Side Energy Gain

A bifacial module can generate additional electricity when light reaches its rear surface. The amount depends on the installation rather than the panel rating alone.

Factors that influence rear-side contribution include:

• Ground reflectivity: Light-coloured or reflective surfaces may return more light to the rear of the module than darker surfaces.

• Mounting height: Adequate clearance can help light reach the rear glass.

• Row spacing: Proper spacing can reduce rear-side shading.

• Shading and obstructions: Mounting rails, nearby structures and other obstructions may reduce rear-side contribution.

• Installation layout: Tilt, orientation and surrounding surfaces influence the amount of reflected light available.

Do not assume a fixed percentage of additional energy for every project. A qualified solar designer should estimate the expected yield using the actual site layout and conditions.

LONGi 590W Solar Panel for Pakistan’s Climate

Pakistan’s solar installations experience varying temperatures, dust levels, sunlight intensity and seasonal weather. Correct system design and regular maintenance are important for maintaining performance.

The panel’s stated operating temperature range is −40°C to +85°C, and its maximum-power temperature coefficient is −0.280%/°C. These values help system designers assess its operating characteristics in hot weather.

For installations in Pakistan:

• Keep the front surface clean using suitable cleaning practices and site-specific maintenance intervals.

• Avoid unnecessary shading from parapets, nearby buildings, trees and equipment.

• Provide appropriate mounting clearance where rear-side bifacial generation is expected.

• Use a properly designed mounting structure suitable for the installation location and applicable loads.

• Check electrical compatibility with the inverter, including string voltage and current limits.

• Use qualified installers for module mounting, DC wiring, earthing and system commissioning.

Actual output and payback depend on the complete solar system, site conditions, electricity consumption and installation quality.

LONGi 590W Bifacial Solar Panel Price in Pakistan

The LONGi 590W Bifacial solar panel price in Pakistan is relevant for commercial buyers, installers and project planners comparing high-wattage solar modules.

The current price of the LONGi 590W Bifacial Solar Panel in Pakistan is Rs. 23,600 per panel.

For bulk orders or project quantities, contact Hajvery Solar Energy to confirm current availability, quantity requirements and applicable commercial terms. A positive listed price should not be treated as a guarantee of stock availability.

Tier 1, A-Grade and Product Authenticity

When buying a LONGi solar panel, check the exact model, product labelling and serial number before installation. The model should match the product ordered, and the electrical specifications should be suitable for the intended system.

Terms such as Tier 1 and A-Grade should only be relied on when supported by relevant, current evidence for the specific product or supply arrangement. These terms should not replace checks of the model identity, condition, warranty and seller details.

Buyers should retain their invoice and applicable warranty information for future reference.

Hajvery Solar Product Verification

Before purchasing the LONGi LR5-72HGD-590M, confirm the following details with the seller:

• Model number: Check that the supplied panel is LR5-72HGD-590M.

• Rated output: Confirm the 590W rating and corresponding electrical characteristics.

• Product condition: Inspect the module for visible damage before installation.

• Serial number and labels: Keep clear records of the module identification and purchase invoice.

• System compatibility: Have the installer verify the inverter’s voltage and current limits and the planned string configuration.

• Warranty details: Confirm the applicable warranty terms and the process for making a claim.

Hajvery Solar Energy can help buyers discuss product details and purchasing requirements. Any specific authenticity check, stock status or warranty arrangement should be confirmed at the time of purchase.

You can verify your LONGi 590W Bifacial Solar Panel through Hajvery Solar Energy before purchasing. Check the exact model number and product details to help ensure you are buying the intended panel. The link for panel verification is given below:
LONGi 590W Bifacial Solar Panel verification.

Warranty and After-Sales Support

The LONGi 590W Bifacial Solar Panel carries a 12-year warranty for materials and processing and a 30-year warranty for extra linear power output.

These warranties cover different aspects of the product. The materials and processing warranty concerns eligible product-related defects, while the linear power output warranty concerns the applicable warranted output over time. Coverage remains subject to the relevant warranty terms, exclusions and claim requirements.

Keep the purchase invoice, product identification and warranty information in a safe place. Before purchasing, confirm the applicable warranty terms and claim route with the seller.

Before You Buy the LONGi 590W Bifacial Solar Panel

Use this checklist before finalising your order:

• Confirm the exact LR5-72HGD-590M model.

• Check that the 590W rated output fits your project design.

• Verify the inverter’s DC voltage and current limits.

• Ask your installer to calculate the correct number of modules per string.

• Check the mounting structure and available installation space.

• Assess whether the installation can benefit from rear-side bifacial generation.

• Confirm the current price per panel and the quantity required.

• Review the 12-year materials and processing warranty and 30-year extra linear power output warranty.

• Retain your invoice and product identification details.

Frequently Asked Questions

1. What is the current price of the LONGi 590W Bifacial Solar Panel in Pakistan?

The current price of the LONGi 590W Bifacial Solar Panel in Pakistan is Rs. 23,600 per panel. Contact Hajvery Solar Energy to confirm current availability and order requirements.

2. What is the exact model number of the LONGi 590W solar panel?

The exact model number is LR5-72HGD-590M.

3. What is the efficiency of the LONGi 590W Bifacial Solar Panel?

The module efficiency is 22.8% under the applicable standard test conditions.

4. What are the LONGi 590W bifacial solar panel specifications?

Key specifications include 590W rated power, 22.8% module efficiency, 43.44V maximum power voltage, 13.59A maximum power current, 51.63V open-circuit voltage and 14.38A short-circuit current. Additional mechanical and electrical details are provided in the specification table above.

5. How much extra energy can a bifacial solar panel generate?

There is no single fixed figure for every installation. Rear-side generation depends on ground reflectivity, mounting height, row spacing, shading and the amount of light reaching the rear surface.

6. What is the warranty on the LONGi 590W solar panel?

The panel has a 12-year materials and processing warranty and a 30-year extra linear power output warranty, subject to the applicable terms and conditions.

7. Can the LONGi 590W panel be used with any solar inverter?

Not automatically. The inverter and string design must match the panel’s voltage and current characteristics, including cold-weather open-circuit voltage and the inverter’s maximum DC input limits. Ask a qualified installer to check compatibility before installation.

8. Where can I find the LONGi 590W bifacial solar panel manual or technical datasheet?

For the LONGi 590W bifacial solar panel manual or technical datasheet, contact Hajvery Solar Energy to ask about the available product resources. Make sure any technical information used for installation matches the exact LR5-72HGD-590M model.

9. Is LONGi 590W the same as LONGi X7 590W?

Searches such as LONGi X7 590W solar panel and longi x7 590w solar panel price in pakistan may be used by buyers looking for this wattage range. Before ordering, confirm the actual product name and model number rather than relying on a search phrase alone. The exact model covered on this page is LR5-72HGD-590M.

10. What should I check before buying a LONGi 590W solar panel?

Confirm the model number, rated power, electrical compatibility, product condition, current price, invoice and applicable warranty terms. For a bifacial installation, also assess whether the mounting arrangement provides useful light to the rear side.

Buy LONGi 590W Bifacial Solar Panel from Hajvery Solar Energy

Planning a commercial, industrial or utility-scale solar project? Contact Hajvery Solar Energy to discuss the LONGi 590W Bifacial Solar Panel, confirm current availability and review your required quantity.

Choose the module only after confirming its model, electrical compatibility, mounting requirements and warranty terms for your installation.

For mor options, View LONGi Solar Panel In Pakistan.