Resun Solar Solar Panels Review 2026

Company Overview

Resun Solar Energy Co., Ltd. specializes in developing and manufacturing high-quality, cost-effective photovoltaic solar modules. With factories accredited by ISO9001 & 14001, their panels are certified by TUV, IEC61215, IEC61730, and other international quality systems. The company's sales network spans over 80 countries, providing efficient supply chain and after-sales services.

Headquarters

Suzhou, China

Founded

2007

Production Capacity

1 GW

Website

Visit site

Key Statistics

Total Panels 16

Avg. Efficiency 22.2%

Max Efficiency 22.9%

Power Range 420W – 590W

Avg. Power 504W

Avg. Temp Coeff -0.29%/°C

Bifacial Panels 6 (38%)

Avg. Warranty 30 years

Technology Breakdown

Cell Technologies

TOPCon 16 panels (100.0%)

Power Distribution

400-499W 10 panels (62.5%)

500-599W 6 panels (37.5%)

Top Picks from Resun Solar

Most Efficient

#	Model	Power	Efficiency	Tech
1	RS8K-M-495W	495W	22.9%	Monocrystalline
2	RS8I-M-DG-590W	590W	22.8%	Monocrystalline
3	RS8K-M-490W	490W	22.7%	Monocrystalline
4	RS8I-M-DG-585W	585W	22.6%	Monocrystalline
5	RS8K-M-485W	485W	22.5%	Monocrystalline

Highest Power

#	Model	Power	Efficiency	Tech
1	RS8I-M-DG-590W	590W	22.8%	Monocrystalline
2	RS8I-M-DG-585W	585W	22.6%	Monocrystalline
3	RS8I-M-DG-580W	580W	22.4%	Monocrystalline
4	RS8I-M-DG-575W	575W	22.3%	Monocrystalline
5	RS8I-M-DG-570W	570W	22.1%	Monocrystalline

Best Resun Solar Panels by Use Case

Best for Residential

380–460W range, ranked by efficiency

#1 RS8V-M-435W FULL BLACK

22.3% 435W

#2 RS8V-M-430W FULL BLACK

22.0% 430W

#3 RS8V-M-425W FULL BLACK

21.8% 425W

#4 RS8V-M-420W FULL BLACK

21.5% 420W

Best for Commercial

500W+, ranked by power output

#1 RS8I-M-DG-590W

590W 22.8%

#2 RS8I-M-DG-585W

585W 22.6%

#3 RS8I-M-DG-580W

580W 22.4%

#4 RS8I-M-DG-575W

575W 22.3%

#5 RS8I-M-DG-570W

570W 22.1%

Best Bifacial

Dual-sided panels, ranked by efficiency

#1 RS8I-M-DG-590W

22.8% 590W

#2 RS8I-M-DG-585W

22.6% 585W

#3 RS8I-M-DG-580W

22.4% 580W

#4 RS8I-M-DG-575W

22.3% 575W

#5 RS8I-M-DG-570W

22.1% 570W

Pros & Cons

Strengths

High-efficiency panels available (up to 22.9%)
Strong warranty coverage averaging 30 years
Large-scale production capacity of 1 GW

Efficiency Distribution

4

21-22%

25.0%

12

22-23%

75.0%

Frequently Asked Questions

Resun Solar offers 16 solar panel models with an average efficiency of 22.2%. Check their full panel lineup on ComparePV to find the best model for your needs.

Resun Solar manufactures panels ranging from 420W to 590W, covering both residential and commercial applications. Their portfolio includes TOPCon (100%) cell technologies.

Resun Solar panels have an average efficiency of 22.2%, with their most efficient model reaching 22.9%. This puts them in the competitive range in the current market.

Yes, Resun Solar offers 6 bifacial panels, representing 38% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.

Resun Solar panels come with an average performance warranty of 30 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.

Resun 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.

Yes, Resun Solar has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production.

The Verdict

Resun Solar is a solid option, offering 16 panels suitable for both residential and commercial buyers. With an average efficiency of 22.2% and top models reaching 22.9%, their panels deliver competitive performance.