Gokin vs Tongwei - solar panel manufacturer comparison

Gokin

Headquarters not published

Read the Gokin review

Tongwei

China Founded 2013 Tier 1

Read the Tongwei review

At a glance

Tongwei has the broader catalog (122 vs 44 models). Gokin leads on peak efficiency at 24.50%. Tongwei leans bifacial (69% 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

44 122

Highest power

780 Wp 750 Wp

Best efficiency

24.5% 24.2%

Average efficiency

23.6% 22.6%

Bifacial share

11% 69%

Average warranty

30 yrs 30 yrs

The two companies

Company facts, not datasheet figures

Gokin

All Gokin panels

Tongwei

Founded: 2013
Headquarters: Chengdu, China
Listed: SSE: 600438
Tier 1 bankable: Yes

All Tongwei panels Manufacturer site

Catalogue against catalogue

Averages over every model in the database

Metric Gokin Tongwei

Catalog & Power

Panel Models 44 122+78

Max Power 780 W+30 W 750 W

Avg Power 517 W 584 W+67 W

Efficiency

Max Efficiency 24.50%+0.30 pp 24.20%

Avg Efficiency 23.58%+0.99 pp 22.59%

Reliability & Warranty

Avg Temp Coefficient -0.260%/°C+0.024 -0.284%/°C

Bifacial Share 5 (11%) 84 (69%)+57 pp

Avg Warranty 30.0 yrs+0.5 yr 29.5 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.

What each of them builds

Cell technology across the market

Efficiency spread

Share of each catalogue in every efficiency band

Gokin skews to higher efficiency: 82% of lineup is 23%+

Power spread

Share of each catalogue in every power band

Tongwei offers more 600W+ panels (53% of lineup)

Gokin cell technology

Share of their models by cell architecture

Dominant cell tech: Back Contact (100%)

Tongwei cell technology

Share of their models by cell architecture

Dominant cell tech: TOPCon (47%)

The flagships

Highest-power models from each brand

Gokin all models

1 GK-4-78HGBD-780MBIMonocrystalline 780 Wp 24.3% -0.260 2 GK-4-78HGBD-775MBIMonocrystalline 775 Wp 24.1% -0.260 3 GK-4-78HGBD-770MBIMonocrystalline 770 Wp 24.0% -0.260 4 GK-4-78HGBD-765MBIMonocrystalline 765 Wp 23.8% -0.260 5 GK-4-78HGBD-760MBIMonocrystalline 760 Wp 23.7% -0.260 6 GK-5-60HG-540MMonocrystalline 540 Wp 24.4% -0.260 7 GK-5-60HG-535MMonocrystalline 535 Wp 24.1% -0.260 8 GK-5-60HG-530MMonocrystalline 530 Wp 23.9% -0.260 9 GK-5-60HG-525MMonocrystalline 525 Wp 23.7% -0.260 10 GK-5-60HG-520MMonocrystalline 520 Wp 23.5% -0.260

Tongwei all models

1 TWMNF-66HD750BIMonocrystalline 750 Wp 24.1% -0.280 2 TWMNF-66HD745BIMonocrystalline 745 Wp 24.0% -0.280 3 TWMNF-66HD740BIMonocrystalline 740 Wp 23.8% -0.280 4 TWMHF-66HD740XBIMonocrystalline 740 Wp 23.8% -0.240 5 THC G12-66 BifacialBIMonocrystalline 740 Wp 23.8% -0.280 6 TWMNF-66HD735BIMonocrystalline 735 Wp 23.7% -0.280 7 TWMHF-66HD735XBIMonocrystalline 735 Wp 23.7% -0.240 8 TWMHF-66HD730XBIMonocrystalline 730 Wp 23.5% -0.240 9 TWMNF-66HD730BIMonocrystalline 730 Wp 23.5% -0.280 10 TWMNF-66HD725BIMonocrystalline 725 Wp 23.3% -0.280

Written summary

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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.

Shop prices: See 6 Gokin offers · See 56 Tongwei offers

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.