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Goldi Solar vs Resun Solar - solar panel manufacturer comparison

Goldi Solar
India Founded 2011 Tier 1
Read the Goldi Solar review
VS
Resun Solar
China Founded 2007
Read the Resun Solar review
At a glance

Resun Solar has the broader catalog (236 vs 145 models). Resun Solar leads on peak efficiency at 23.66%. Goldi Solar leans bifacial (79% 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
145 236
Highest power
715 Wp 735 Wp
Best efficiency
23.0% 23.7%
Average efficiency
21.2% 21.5%
Bifacial share
79% 31%
Average warranty
28 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
Goldi Solar

Goldi Solar is a leading Indian solar PV module manufacturer and EPC service provider committed to accelerating the transition to sustainable energy. Established in 2011 and headquartered in Surat, Gujarat, the company offers cutting-edge solar solutions that power industries, businesses, and communities across more...

Founded
2011
Headquarters
Surat, India
Annual capacity
15.2 GW/year
Employees
250-499 Employees
Tier 1 bankable
Yes
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
02

Catalogue against catalogue

Averages over every model in the database
Metric Goldi Solar Resun Solar
Catalog & Power
Panel Models 145 236+91
Max Power 715 W 735 W+20 W
Avg Power 513 W+3 W 510 W
Efficiency
Max Efficiency 23.03% 23.66%+0.63 pp
Avg Efficiency 21.16% 21.52%+0.36 pp
Reliability & Warranty
Avg Temp Coefficient -0.326%/°C -0.318%/°C+0.008
Bifacial Share 115 (79%)+48 pp 73 (31%)
Avg Warranty 27.6 yrs 30.0 yrs+2.4 yr

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

Resun Solar skews to higher efficiency: 7% of lineup is 23%+

Power spread
Share of each catalogue in every power band

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

Goldi Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (74%)

Resun Solar cell technology
Share of their models by cell architecture

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

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Goldi Solar is an Indian module manufacturer headquartered in Surat, Gujarat, founded in 2011 by Bharat Bhut and Ishver Dholakiya. It appears on Bloomberg New Energy Finance's bankable Tier 1 list and is currently India's largest solar PV module producer, with annual manufacturing capacity of roughly 15.2 GW and further expansion plans targeting FY2028. Resun Solar is a Chinese manufacturer based in Changzhou, Jiangsu, operating for about two decades, with annual capacity variously reported between roughly 1 and 5 GW and a sales network spanning 20 to 80 countries depending on the source, but it does not currently appear on published BNEF Tier 1 lists. On institutional footprint and verified production scale, Goldi Solar holds the stronger position.

Both brands serve residential rooftop, commercial and utility-scale segments. Goldi Solar runs a broader technology mix, still producing PERC modules alongside a newer bifacial TOPCon line (such as the HELOC Plus G12 series, up to 705 W with efficiency around 22.7 percent), giving buyers a choice between cost-driven legacy technology and higher-output modules. Resun Solar has moved almost entirely to TOPCon cells, offering panels from roughly 420 to 590 W with average efficiency near 22.3 percent, making its catalog narrower but technologically consistent.

For a buyer prioritizing verified bankability and manufacturing scale, particularly on bank-financed projects, Goldi Solar is the safer default. Resun Solar remains a reasonable option where a focused, competitively priced TOPCon lineup is the main requirement, though the absence of a current Tier 1 listing may limit its eligibility for certain institutional tenders.

Generated by Claude Sonnet 5 · 2026-09-03

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.