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Manufacturer review

Hounen Solar panels, read off the datasheets

Hounen Solar (Zhejiang Haoneng Optoelectronics) is a Chinese solar PV module manufacturer with its U.S. operations branded as Hounen Solar America. The company produces solar panels for residential, commercial, and utility-scale applications, and in 2023 established a 1 GW module assembly facility...

Everything below is computed from those 44 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Hounen Solar does not publish a figure, it is left out of the average rather than assumed.

Panels
44
models in the database
Average efficiency
21.7%
across the catalogue
Best efficiency
23.3%
their strongest module
Power range
395-725 Wp
smallest to largest
Bifacial share
86%
38 dual-sided models
Average warranty
29 years
guaranteed output term
01

The top of the range

The leaders of Hounen 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 HNM8-GPLDD132-725/N Monocrystalline bifacial 725 Wp 23.3% 2 HNM8-GPLDD132-720/N Monocrystalline bifacial 720 Wp 23.2% 3 HNM8-GPLDD132-715/N Monocrystalline bifacial 715 Wp 23.0% 4 HNM8-GPLDD132-710/N Monocrystalline bifacial 710 Wp 22.9% 5 HNM8-GPLDD132-705/N Monocrystalline bifacial 705 Wp 22.7%
Sort the whole catalogue by efficiency
Highest power nameplate output
1 HNM8-GPLDD132-725/N Monocrystalline bifacial 23.3% 725 Wp 2 HNM8-GPLDD132-720/N Monocrystalline bifacial 23.2% 720 Wp 3 HNM8-GPLDD132-715/N Monocrystalline bifacial 23.0% 715 Wp 4 HNM8-GPLDD132-710/N Monocrystalline bifacial 22.9% 710 Wp 5 HNM8-GPLDD132-705/N Monocrystalline bifacial 22.7% 705 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 HNM7-UHLDD108-440/M Monocrystalline bifacial 440 Wp 22.5% 2 HNM7-UHLDD108-435/M Monocrystalline bifacial 435 Wp 22.3% 3 HNM7-UHLDD108-430/M Monocrystalline bifacial 430 Wp 22.0% 4 HNM7-UHLDD108-425/M Monocrystalline bifacial 425 Wp 21.8% 5 HNM7-UHLDD108-420/M Monocrystalline bifacial 420 Wp 21.5%
For a commercial array 500 Wp and up
1 HNM8-GPLDD132-725/N Monocrystalline bifacial 725 Wp 23.3% 2 HNM8-GPLDD132-720/N Monocrystalline bifacial 720 Wp 23.2% 3 HNM8-GPLDD132-715/N Monocrystalline bifacial 715 Wp 23.0% 4 HNM8-GPLDD132-710/N Monocrystalline bifacial 710 Wp 22.9% 5 HNM8-GPLDD132-705/N Monocrystalline bifacial 705 Wp 22.7%
For a ground mount dual-sided
1 HNM8-GPLDD132-725/N Monocrystalline bifacial 725 Wp 23.3% 2 HNM8-GPLDD132-720/N Monocrystalline bifacial 720 Wp 23.2% 3 HNM8-GPLDD132-715/N Monocrystalline bifacial 715 Wp 23.0% 4 HNM8-GPLDD132-710/N Monocrystalline bifacial 710 Wp 22.9% 5 HNM8-GPLDD132-705/N Monocrystalline bifacial 705 Wp 22.7%
03

What the catalogue is made of

Cell technology across the market

Shares are of the 44 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
Unknown 52.3% 23 N-type 47.7% 21
Unknown accounts for 52.3% of the catalogue - 23 of 44 modules.
Efficiency spread share of the catalogue
20-21% 15.9% 7 21-22% 45.5% 20 22-23% 31.8% 14 23%+ 6.8% 3
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
  • High-efficiency panels available (up to 23.3%)
  • Strong bifacial lineup - 86% of portfolio supports dual-sided generation
  • Strong warranty coverage averaging 29 years
  • High-power panels available (up to 725W) for commercial applications
  • Large-scale production capacity of 1-2 GW
Where it is thin
  • Limited adoption of latest cell technologies (TOPCon/HJT)
05

In short

Hounen Solar: Hounen Solar is an industry leader in efficiency, offering 44 panels suitable for both residential and commercial buyers. With an average efficiency of 21.7% and top models reaching 23.3%, their panels deliver competitive performance.
Common questions
Is Hounen Solar a good solar panel manufacturer?
Hounen Solar offers 44 solar panel models with an average efficiency of 21.7%. Check their full panel lineup on ComparePV to find the best model for your needs.
What types of solar panels does Hounen Solar make?
Hounen Solar manufactures panels ranging from 395W to 725W, covering both residential and commercial applications. Their portfolio includes Unknown (52%), N-type (48%) cell technologies.
How efficient are Hounen Solar solar panels?
Hounen Solar panels have an average efficiency of 21.7%, with their most efficient model reaching 23.3%. This puts them among the industry leaders in the current market.
Does Hounen Solar make bifacial solar panels?
Yes, Hounen Solar offers 38 bifacial panels, representing 86% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
What warranty does Hounen Solar offer on their solar panels?
Hounen Solar panels come with an average performance warranty of 29 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 Hounen Solar panels good for residential use?
Hounen 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.
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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