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Horay Solar vs Longi Solar - solar panel manufacturer comparison

Horay Solar
China Founded 2010 Tier 1
Read the Horay Solar review
VS
Longi Solar
China Founded 2000 Tier 1
Read the Longi Solar review
At a glance

Longi Solar has the broader catalog (255 vs 182 models). Longi Solar leads on peak efficiency at 25.00%. Horay Solar leans bifacial (67% 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
182 255
Highest power
720 Wp 670 Wp
Best efficiency
23.3% 25.0%
Average efficiency
22.5% 22.6%
Bifacial share
67% 40%
Average warranty
30 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
Horay Solar

Horay Solar is an integrated photovoltaic company specializing in the R&D, production, and sales of solar modules and solar power systems. They are committed to globalization and offer standard and customized solar module solutions. The company's products are exported globally, providing efficient clean energy...

Founded
2010
Headquarters
Wuxi, Jiangsu Province, China
Annual capacity
2.5 GW/year
Employees
400
Tier 1 bankable
Yes
Longi Solar

LONGi Green Energy Technology Co., Ltd. is a world-leading solar technology company that manufactures monocrystalline silicon wafers and modules. The company is committed to providing high-efficiency and reliable clean energy solutions for large-scale power plants, various industries, and households. LONGi aims to be...

Founded
2000
Headquarters
Xi'an, Shaanxi, China
Annual capacity
85-90 GW/year
Employees
37,853
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Horay Solar Longi Solar
Catalog & Power
Panel Models 182 255+73
Max Power 720 W+50 W 670 W
Avg Power 536 W 544 W+8 W
Efficiency
Max Efficiency 23.30% 25.00%+1.70 pp
Avg Efficiency 22.46% 22.65%+0.19 pp
Reliability & Warranty
Avg Temp Coefficient -0.280%/°C+0.011 -0.291%/°C
Bifacial Share 122 (67%)+27 pp 101 (40%)
Avg Warranty 30.0 yrs+2.2 yr 27.8 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

Longi Solar skews to higher efficiency: 43% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Longi Solar offers more 600W+ panels (38% of lineup)

Horay Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (56%)

Longi Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>N-type</strong> (42%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Horay Solar is a Chinese photovoltaic manufacturer headquartered in Wuxi, Jiangsu Province, with an annual production capacity of approximately 2.5 GW. The company earned Bloomberg New Energy Finance (BNEF) Tier 1 status for the first time in Q1 2025, a meaningful milestone that signals improving bankability and growing acceptance by project financiers. LONGi Solar, also headquartered in China - originally in Xi'an and founded in 2000 - operates at a categorically different scale, with back-contact (BC) module capacity targeted at around 70 GW by end of 2025 and long-term plans pointing toward 150 GW of annual module output. LONGi has maintained continuous BNEF Tier 1 status and, as of Q1 2026, holds a double Tier 1 recognition covering both PV modules and energy storage systems. On any measure of institutional footprint, LONGi is the substantially larger and more widely financed of the two.

Horay Solar's catalog addresses residential rooftop, commercial and industrial (C&I), and utility-scale ground-mount use cases. The company offers monofacial and bifacial configurations in 182 mm and 210 mm cell formats under the Solar Ocean and Solar Galaxy series, leveraging N-type TOPCon as its primary cell technology alongside legacy PERC lines. Modules carry TÜV, IEC, CE, and CQC certifications. LONGi, by contrast, has staked its product strategy on its proprietary HPBC (Hybrid Passivated Back Contact) technology, which powers the Hi-MO X6 and the flagship Hi-MO X10 - a module rated at up to 670 W and 24.8% module efficiency, outperforming conventional TOPCon by a notable margin according to the company. The Hi-MO range spans distributed generation and C&I segments as well as large utility projects.

For most international buyers - especially those arranging non-recourse project financing or requiring robust long-term warranty backing - LONGi is the safer default. Its scale, unbroken Tier 1 track record, and proprietary back-contact technology roadmap provide clearer risk mitigation for lenders and asset owners. Horay Solar is a credible consideration for smaller installers or developers seeking competitive module pricing from a newly Tier 1-certified supplier, but warranty depth and in-country service availability should be verified independently. The two brands are not interchangeable: the gap in manufacturing scale and institutional recognition is material.

Generated by Claude Sonnet · 2026-05-14

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.

Shop prices: See 147 Longi Solar 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.