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Resun Solar vs Techwise Solar - solar panel manufacturer comparison

Resun Solar
China Founded 2007
Read the Resun Solar review
VS
Techwise Solar
Headquarters not published
Read the Techwise Solar review
At a glance

Resun Solar has the broader catalog (236 vs 164 models). Techwise Solar leads on peak efficiency at 23.80%. Techwise Solar leans bifacial (49% of lineup).

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
236 164
Highest power
735 Wp 720 Wp
Best efficiency
23.7% 23.8%
Average efficiency
21.5% 21.9%
Bifacial share
31% 49%
Average warranty
30 yrs 27 yrs
01

The two companies

Company facts, not datasheet figures
Resun Solar

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...

Founded
2007
Headquarters
Suzhou, China
Annual capacity
1 GW/year
Techwise Solar
02

Catalogue against catalogue

Averages over every model in the database
Metric Resun Solar Techwise Solar
Catalog & Power
Panel Models 236+72 164
Max Power 735 W+15 W 720 W
Avg Power 510 W 530 W+20 W
Efficiency
Max Efficiency 23.66% 23.80%+0.14 pp
Avg Efficiency 21.52% 21.88%+0.37 pp
Reliability & Warranty
Avg Temp Coefficient -0.318%/°C -0.317%/°C+0.001
Bifacial Share 73 (31%) 81 (49%)+18 pp
Avg Warranty 30.0 yrs+2.7 yr 27.3 yrs

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

Techwise Solar skews to higher efficiency: 9% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Resun Solar offers more 600W+ panels (29% of lineup)

Resun Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (66%)

Techwise Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (70%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Resun Solar is a Chinese photovoltaic module manufacturer headquartered in Suzhou, founded in 2007, with a modest production footprint reported at roughly 300 to 500 MW of annual capacity across two factories. It has supplied off-grid and on-grid systems to World Bank-backed solar programs in over 80 countries and holds standard TUV and IEC61215/IEC61730 certifications, but available sources do not confirm a current Bloomberg NEF Tier 1 bankability listing. Techwise Solar Technology Co., Ltd. is likewise a Chinese manufacturer, positioned as an integrated new-energy solutions provider covering R&D, production, sales, and installation, with a reported annual production capacity around 1 GW using automated lines for laser cutting and precision soldering. It carries TUV, CE, ISO, and CGC certifications but similarly shows no confirmed Tier 1/BNEF bankability status in independent listings. Between the two, Techwise appears to have a somewhat larger and more automated manufacturing base, giving it a slightly stronger institutional footprint, though neither brand carries the scale or track record of top-tier global players like JinkoSolar or Trina Solar.

Resun's product range centers on mono and polycrystalline modules aimed at residential and small commercial rooftops, with panels spanning roughly 420 W to 590 W and warranties marketed up to 30 years, reflecting a budget-to-midrange positioning for distributed generation projects. Techwise Solar's catalog, sold under names like Sun-Pursuit and Micro Sun, spans PERC, TOPCon, and bifacial glass-glass modules across common cell formats (182N, 183.75N, 210R, 210N), with OEM/ODM customization offered, suggesting a broader push into utility-scale ground-mount and commercial installations alongside residential use.

For a typical buyer in 2025, the two brands are best treated as comparable second-tier Chinese manufacturers rather than clearly differentiated choices; Techwise's newer TOPCon and bifacial lineup and larger production scale may appeal to commercial or utility buyers wanting more technology variety, while Resun's simpler mono/poly range and long-standing off-grid project history may suit smaller residential or emerging-market installations. Given that neither has confirmed Tier 1 bankability, buyers on either side should independently verify financing eligibility and local warranty support before committing to large projects.

Generated by Claude Sonnet 5 · 2026-09-18

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.