LONGi LR8-66HGD 595W-625W Bifacial Solar Panel

Product Details

High Power Output for Commercial and Utility Scale Solar Projects

The LR8-66HGD series delivers a rated power output ranging from 595W to 625W, helping solar developers maximize installed capacity while reducing the number of modules required for a given system size. With module efficiency reaching 23.1%, this high-efficiency photovoltaic module supports efficient land utilization and is suitable for commercial rooftops, industrial solar power systems, ground-mounted solar farms, and utility-scale PV projects.

For project developers and EPC contractors, selecting a high-wattage solar panel can help optimize system design, installation planning, and overall project economics.

Bifacial Solar Technology for Additional Energy Generation

This bifacial solar panel captures sunlight from both the front and rear sides, allowing it to generate additional electricity from reflected light under suitable installation conditions. Its bifaciality factor is 80% ± 5%, making it a practical option for ground-mounted solar power plants and other installations with favorable rear-side irradiance.

Actual additional energy generation depends on ground reflectivity, mounting height, row spacing, shading, and site conditions. For project owners seeking to improve energy yield, bifacial solar modules offer greater flexibility in PV system design.

Enhanced Mechanical Strength for Demanding Environments

Designed for projects where mechanical reliability is important, the LR8-66HGD features a maximum front-side static load of 6000Pa and a rear-side static load of 3000Pa. The module has also passed hail testing with 25 mm hailstones at an impact velocity of 23 m/s, according to the supplied datasheet.

These characteristics make the module suitable for evaluating in projects exposed to heavy snow loads, wind pressure, and other demanding environmental conditions, subject to local structural requirements and installation design.

Half-Cell Technology for Reliable Solar Performance

The module uses a 132-cell configuration arranged in a 6 × 22 layout and incorporates half-cell technology to support efficient power generation. Its temperature coefficient of maximum power is -0.280%/°C, helping project designers assess performance under elevated operating temperatures.

The module operates within a temperature range of -40°C to +85°C and supports a maximum system voltage of DC 1500V under IEC/UL specifications, making it suitable for appropriately designed commercial and utility-scale photovoltaic systems.

Long-Term Warranty and Power Output Reliability

The LR8-66HGD series comes with a 12-year product material and workmanship warranty and a 30-year linear power output warranty, according to the supplied product specifications. The datasheet specifies first-year power degradation of less than 1% and annual degradation of 0.4% from years 2 through 30.

For solar project investors, long-term warranty coverage and documented power degradation specifications are important factors when evaluating lifetime energy production, maintenance planning, and project returns. Warranty coverage is subject to the manufacturer's applicable terms and conditions.

Quality Standards and Product Certifications

The product documentation lists the following standards and management system certifications:

• IEC 61215 and IEC 61730

• UL 61730

• ISO 9001:2015 Quality Management System

• ISO 14001:2015 Environmental Management System

• ISO 45001:2018 Occupational Health and Safety Management System

• IEC 62941 photovoltaic module quality assurance guidelines

Buyers should confirm the applicable certification documents and market-specific compliance requirements before placing an order.

Key Product Advantages

• High Power Output: Rated power from 595W to 625W, with maximum module efficiency of 23.1%.

• Bifacial Energy Generation: An 80% ± 5% bifaciality factor supports additional rear-side energy harvesting under suitable conditions.

• High Mechanical Load Capacity: Supports up to 6000Pa front-side and 3000Pa rear-side static loads.

• Advanced Half-Cell Design: A 132-cell configuration supports efficient module performance.

• Temperature Performance: A maximum power temperature coefficient of -0.280%/°C.

• Long-Term Warranty: 12-year product material and workmanship warranty and 30-year linear power output warranty.

• 1500V System Compatibility: Suitable for properly designed high-voltage commercial and utility-scale PV systems.

• Project-Oriented Supply: SolarAsia Power can assist buyers with product selection and customized solar equipment sourcing based on project requirements.

Technical Specifications

Applications

The LONGi LR8-66HGD high-wattage bifacial solar panel can be considered for a range of photovoltaic applications, including:

• Commercial and industrial solar power systems

• Utility-scale solar power plants

• Ground-mounted solar farms

• Large commercial rooftop installations

• Agricultural and industrial PV projects

• Solar projects requiring high mechanical load capacity

The final module selection should account for project location, mounting structure, wind and snow loads, electrical design, and applicable local regulations.

Why Source Solar Panels from Solarasia Power?

SolarAsia Power supplies solar panels, inverters, lithium batteries, gel batteries, and complete solar power systems for international customers. We support project-oriented product selection and customized solar equipment sourcing to help distributors, installers, EPC contractors, and project developers identify suitable components for their applications.

Whether you are sourcing 600W solar panels for a commercial rooftop or 625W bifacial solar modules for a utility-scale project, contact our team to discuss product availability, order quantities, delivery arrangements, and system requirements.

Contact SolarAsia Power for a quotation and provide your target quantity, destination country, and project application to help us prepare a suitable offer.

Frequently Asked Questions

Q1: What is the power range of the LR8-66HGD solar panel?

A: The LR8-66HGD series covers rated power outputs from 595W to 625W, with module efficiency reaching 23.1%.

Q2: Is the LR8-66HGD a bifacial solar panel?

A: Yes. It is a bifacial monocrystalline solar module with an 80% ± 5% bifaciality factor. Actual rear-side energy generation depends on installation and environmental conditions.

Q3: What is the maximum efficiency of this solar module?

A: The maximum module efficiency listed in the datasheet is 23.1%, achieved by the 625W version.

Q4: What are the dimensions and weight of the panel?

A: The module measures 2382 × 1134 × 30 mm and weighs 35.7 kg.

Q5: What is the maximum system voltage?

A: The specified maximum system voltage is DC 1500V under IEC/UL specifications. The system design must comply with the applicable electrical requirements.

Q6: Can this solar panel withstand heavy snow and wind loads?

A: The module is rated for a maximum front-side static load of 6000Pa and a rear-side static load of 3000Pa. The complete installation must also meet local structural and mounting requirements.

Q7: What warranties are provided?

A: The datasheet specifies a 12-year product material and workmanship warranty and a 30-year linear power output warranty. Please confirm the applicable warranty terms before ordering.

Q8: Can I purchase these solar panels for a commercial or utility-scale project?

A: Yes. The series is suitable for consideration in commercial, industrial, and utility-scale PV projects. Contact SolarAsia Power to discuss availability, order quantity, delivery destination, and project requirements.