Warranty, Certifications, and Reliability
When assessing the reliability of solar panels, several factors come into play, including certifications, module construction, and warranty offerings.
Module Construction: Longi Solar offers a range of standard and proven module constructions. They also incorporate advanced technologies, such as glass-glass construction and high-grade N-type cells, in certain modules, ensuring enhanced durability and performance.
Certifications: All Longi Solar modules carry essential certifications such as IEC 61215 and IEC 61730, which attest to their standard resilience against potential hazards. Longi Solar also actively participates in PVEL tests, which are more stringent than basic certifications. Many Longi Solar series have successfully passed these tests, reaffirming their quality and reliability.
However, it is important to note that Longi Solar does not invest in certifications specifically related to salt mist or ammonia resistance. In heavily polluted environments, these panels may experience accelerated degradation.
Longi Solar Warranty: Longi Solar provides a standard warranty period for their Hi-MO 4, Hi-MO 5, and Hi-MO 6 series, typically ranging from 12 to 15 years. Additionally, selected modules from the Hi-MO 6 series offer an extended quality warranty of 20 to 25 years, emphasizing their commitment to long-term performance and customer satisfaction.
Performance and Efficiency
When evaluating solar panels, performance and efficiency play a crucial role in determining their effectiveness in harnessing solar energy. Longi Solar panels demonstrate impressive performance characteristics.
Longi Solar's product range encompasses various series, including the Hi-MO 4, Hi-MO 5, and Hi-MO 6. These series exhibit different levels of performance and efficiency, catering to diverse energy needs and installation requirements. The Hi-MO 6 series, in particular, stands out with its exceptional efficiency, rivaling renowned brands in the industry.
Credibility and Financial Stability
As consumers, it is essential to consider the credibility and financial stability of solar panel manufacturers. Longi Solar exhibits several indicators of credibility, instilling confidence in their products and services.
Company Size and Market Presence: Longi Solar operates on a large scale, producing solar panels from raw silicon materials. Their vertically integrated approach, which involves manufacturing silicon wafers, enables them to maintain stability and control over their production processes.
Trust and Recognition: Longi Solar enjoys significant trust from financial institutions, evidenced by their inclusion in Bloomberg's prestigious list of projects financed by term loans. This recognition demonstrates the confidence banks place in Longi Solar's brand and their competitive pricing.
The Bloomberg ranking, updated quarterly, includes some prominent brands available on merXu.com:
Jinko Solar, LONGI Solar, JA Solar, Trina Solar, Canadian Solar.
Choosing photovoltaic panels from these manufacturers ensures reliable and stable products, guaranteeing high quality, low failure rates, and cost-effectiveness.
Price and Cost-effectiveness
Longi Solar panels are renowned for their competitive pricing, offering a cost-effective solution for those considering solar energy systems. The combination of reasonable pricing, reliability, and performance makes Longi Solar an attractive choice for both residential and commercial installations.
Popular LONGi Solar Panels
Longi Solar offers a range of popular solar panels that have gained recognition for their exceptional performance and durability. Let's explore some of the most sought-after panels by LONGi Solar:
1. LONGi Solar 450W - LR4-72HPH-450M
Part of the Hi-MO 4M series, this module delivers impressive performance.
General specifications:
Monocrystalline cells
Glass-backsheet construction
9 busbars
Surface area: 2.17 m
212-year product warranty
Ideal for larger installations, it provides high current output. Ensure proper inverter selection.
Electrical specifications:
STC Power: 450 Wp
STC Efficiency: 20.70%
NOCT Relative Efficiency: 93.9%
LIC Relative Efficiency: 97.7%
Performance: ~ 233 kWh/year/m2
Performance within product warranty: ~ 2695 kWh/12 years/m2
Recognized as a top performer in thermal shock, microcrack, and potential-induced degradation (PID) tests by PVEL in 2022.
2. LONGi Solar 370W - LR4-60HPH-370M
Part of the Hi-MO 4 series, these modules are popular for rooftop installations.
General specifications:
Monocrystalline cells
Sleek black frame
Glass-backsheet construction
9 busbars
Surface area: 1.8 m
210-year product warranty
Suitable for smaller installations, offering a balanced current output compatible with various inverters.
Electrical specifications:
STC Power: 370 Wp
STC Efficiency: 20.30%
NOCT Relative Efficiency: 92.6%
LIC Relative Efficiency: 97.6%
Performance: ~ 225 kWh/year/m2
Performance within product warranty: ~ 2184 kWh/10 years/m2
Recognized as a top performer in thermal shock, microcrack, and PID tests by PVEL in 2022.
3. Future-proof Premium Module - LR5-54HTB-440M
Part of the Hi-MO 6 series announced in autumn 2022, this module is designed for residential rooftops.
General specifications:
Monocrystalline cells
Full black design
Glass-backsheet construction
IBC (Interdigitated Back Contact) technology
Surface area: 1.95 m225-year product warranty
Offers a low current output suitable for inverters. Note that small inverters may not handle the high short-circuit current of this module.
Electrical specifications:
STC Power: 440 Wp
STC Efficiency: 22.5%
NOCT Relative Efficiency: 93.5%
LIC Relative Efficiency: 96%
Performance: ~ 248 kWh/year/m2
Performance within product warranty: ~ 5852 kWh/25 years/m2
These popular LONGi Solar panels combine cutting-edge technology, impressive warranties, and high performance, making them excellent choices for various solar energy projects.
