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Manufacturer review

Resun Solar panels, read off the datasheets

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...

Everything below is computed from those 236 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Resun Solar does not publish a figure, it is left out of the average rather than assumed.

Panels
236
models in the database
Average efficiency
21.5%
across the catalogue
Best efficiency
23.7%
their strongest module
Power range
60-735 Wp
smallest to largest
Bifacial share
31%
73 dual-sided models
Average warranty
30 years
guaranteed output term
01

The top of the range

The leaders of Resun Solar's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof.

Most efficient module efficiency
1 RS9H-M TOPCON-735 Monocrystalline 735 Wp 23.7% 2 RS9H-M TOPCON-730 Monocrystalline 730 Wp 23.5% 3 RS9H-M TOPCON-725 Monocrystalline 725 Wp 23.3% 4 RS8H-M-630 Monocrystalline 630 Wp 23.3% 5 RS8I-M-BD TOPCON Monocrystalline 630 Wp 23.3%
Sort the whole catalogue by efficiency
Highest power nameplate output
1 RS9H-M TOPCON-735 Monocrystalline 23.7% 735 Wp 2 RS9H-M TOPCON-730 Monocrystalline 23.5% 730 Wp 3 RS9H-M TOPCON-725 Monocrystalline 23.3% 725 Wp 4 RS9H-M TOPCON-720 Monocrystalline 23.2% 720 Wp 5 RS9H-M-720 Monocrystalline 23.2% 720 Wp
Sort the whole catalogue by power
02

By what the array is for

Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case.

For a house roof 380-460 Wp
1 RS8I-M TOPCON-460 Monocrystalline 460 Wp 23.0% 2 RS8I-M TOPCON-455 Monocrystalline 455 Wp 22.8% 3 RS8V-M-DG Monocrystalline bifacial 440 Wp 22.5% 4 RS8V-M-DG-440 Monocrystalline bifacial 440 Wp 22.5% 5 RS8I-M TOPCON-450 Monocrystalline 450 Wp 22.5%
For a commercial array 500 Wp and up
1 RS9H-M TOPCON-735 Monocrystalline 735 Wp 23.7% 2 RS9H-M TOPCON-730 Monocrystalline 730 Wp 23.5% 3 RS9H-M TOPCON-725 Monocrystalline 725 Wp 23.3% 4 RS9H-M TOPCON-720 Monocrystalline 720 Wp 23.2% 5 RS9H-M-720 Monocrystalline 720 Wp 23.2%
For a ground mount dual-sided
1 RS9H-M-DG-720 Monocrystalline bifacial 720 Wp 23.2% 2 RS9V-M-DG-590 Monocrystalline bifacial 590 Wp 23.1% 3 RS9H-M-DG-715 Monocrystalline bifacial 715 Wp 23.0% 4 RS9K-M-DG-650 Monocrystalline bifacial 650 Wp 23.0% 5 RS9V-M-DG-585 Monocrystalline bifacial 585 Wp 22.9%
03

What the catalogue is made of

Cell technology across the market

Shares are of the 236 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one.

Cell technology share of the catalogue
TOPCon 65.7% 155 Unknown 34.3% 81
TOPCon accounts for 65.7% of the catalogue - 155 of 236 modules.
Efficiency spread share of the catalogue
<20% 11.9% 28 20-21% 12.7% 30 21-22% 25.4% 60 22-23% 42.8% 101 23%+ 7.2% 17
04

Strengths and gaps

Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built.

What this catalogue is good at
  • Extensive portfolio of 236 panels across multiple series
  • High-efficiency panels available (up to 23.7%)
  • Strong warranty coverage averaging 30 years
  • High-power panels available (up to 735W) for commercial applications
  • Large-scale production capacity of 1 GW
05

In short

Resun Solar: Resun Solar is an industry leader in efficiency, offering 236 panels suitable for both residential and commercial buyers. With an average efficiency of 21.5% and top models reaching 23.7%, their panels deliver competitive performance.
Common questions
Is Resun Solar a good solar panel manufacturer?
Resun Solar offers 236 solar panel models with an average efficiency of 21.5%. Check their full panel lineup on ComparePV to find the best model for your needs.
What types of solar panels does Resun Solar make?
Resun Solar manufactures panels ranging from 60W to 735W, covering both residential and commercial applications. Their portfolio includes TOPCon (66%), Unknown (34%) cell technologies.
How efficient are Resun Solar solar panels?
Resun Solar panels have an average efficiency of 21.5%, with their most efficient model reaching 23.7%. This puts them among the industry leaders in the current market.
Does Resun Solar make bifacial solar panels?
Yes, Resun Solar offers 73 bifacial panels, representing 31% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
What warranty does Resun Solar offer on their solar panels?
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.
Are Resun Solar panels good for residential use?
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.
Does Resun Solar use TOPCon technology?
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.
06

Compared with

Build your own

A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes.

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