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Longi Solar Solar Panels Review 2026

Comprehensive analysis of Longi Solar's solar panel portfolio — 250 panels reviewed with detailed specifications, efficiency data, and technology breakdown.

250 Panels Up to 25.0% Efficiency 100W – 670W Tier 1 Bankable
Longi Solar

Company Overview

LONGi Green Energy Technology Co., Ltd. is a world-leading solar technology company that manufactures monocrystalline silicon wafers and modules. The company is committed to providing high-efficiency and reliable clean energy solutions for large-scale power plants, various industries, and households. LONGi aims to be the most valuable solar technology company in the world, driving the global energy transition with its innovation-focused development.

Headquarters
Xi'an, Shaanxi, China
Founded
2000
Employees
37,853
Production Capacity
85-90 GW
Stock
Shanghai Stock Exchange: 601012
Website
Visit site

Key Statistics

Total Panels 250
Avg. Efficiency 22.6%
Max Efficiency 25.0%
Power Range 100W – 670W
Avg. Power 542W
Avg. Temp Coeff -0.29%/°C
Bifacial Panels 101 (40%)
Avg. Warranty 28 years

Technology Breakdown

Cell Technologies

Unknown 226 panels (90.4%)
PERC 10 panels (4.0%)
Back Contact 8 panels (3.2%)
N-type 6 panels (2.4%)

Power Distribution

<400W 8 panels (3.2%)
400-499W 81 panels (32.4%)
500-599W 70 panels (28.0%)
600-699W 91 panels (36.4%)

Top Picks from Longi Solar

Most Efficient

# Model Power Efficiency Tech
1 LR7-54HJD-510M 510W 25.0% Monocrystalline
2 LR7-60HVH-560M 560W 24.8% Monocrystalline
3 LR7-72HVHF-670M 670W 24.8% Monocrystalline
4 LR7-60HVHL-560M 560W 24.8% Monocrystalline
5 LR8-66HYD-670M 670W 24.8% Monocrystalline

Highest Power

# Model Power Efficiency Tech
1 LR7-72HVH-670M 670W 24.8% Monocrystalline
2 LR7-72HVHF-670M 670W 24.8% Monocrystalline
3 LR8-66HYD-670M 670W 24.8% Monocrystalline
4 LR7-72HVDF-665M 665W 24.6% Monocrystalline
5 LR7-72HVHF-665M 665W 24.6% Monocrystalline

Best Longi Solar Panels by Use Case

Best for Residential

380–460W range, ranked by efficiency
23.3% 455W
23.0% 450W
23.0% 450W
22.8% 445W
22.8% 445W

Best for Commercial

500W+, ranked by power output
670W 24.8%
670W 24.8%
670W 24.8%
665W 24.6%
665W 24.6%

Best Bifacial

Dual-sided panels, ranked by efficiency
25.0% 510W
24.8% 670W
24.7% 505W
24.7% 505W
24.6% 665W

Pros & Cons

Strengths

  • Extensive portfolio of 250 panels across multiple series
  • Tier 1 bankable manufacturer — recognized by major financial institutions
  • High-efficiency panels available (up to 25.0%)
  • Strong warranty coverage averaging 28 years
  • High-power panels available (up to 670W) for commercial applications
  • Established manufacturer with 26+ years of experience
  • Large-scale production capacity of 85-90 GW

Considerations

  • Limited adoption of latest cell technologies (TOPCon/HJT)

Efficiency Distribution

3
<20%
1.2%
26
20-21%
10.4%
47
21-22%
18.8%
66
22-23%
26.4%
108
23%+
43.2%

Frequently Asked Questions

Longi Solar offers 250 solar panel models with an average efficiency of 22.6%. They are a Tier 1 bankable manufacturer, recognized by major financial institutions for reliability. Check their full panel lineup on ComparePV to find the best model for your needs.

Longi Solar manufactures panels ranging from 100W to 670W, covering both residential and commercial applications. Their portfolio includes Unknown (90%), PERC (4%), Back Contact (3%) cell technologies.

Longi Solar panels have an average efficiency of 22.6%, with their most efficient model reaching 25.0%. This puts them among the industry leaders in the current market.

Yes, Longi Solar offers 101 bifacial panels, representing 40% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.

Longi Solar panels come with an average performance warranty of 28 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.

Longi Solar offers panels in the residential-friendly 380–460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.

The Verdict

Longi Solar is an industry leader in efficiency, offering 250 panels suitable for both residential and commercial buyers. With an average efficiency of 22.6% and top models reaching 25.0%, their panels deliver competitive performance. As a Tier 1 bankable manufacturer, they offer strong financial backing and long-term reliability.

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Explore All Longi Solar Panels

Browse the complete catalog of 250 Longi Solar solar panels with detailed specifications, filters, and comparison tools.

View All 250 Panels Compare Panels