---
title: "JS Solar vs Longi Solar - Brand Comparison | ComparePV"
description: "Compare JS Solar vs Longi Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/js-solar-vs-longi-solar"
---

# JS Solar vs Longi Solar

Longi Solar has the broader catalog (255 vs 137 models). Longi Solar leads on peak efficiency at 25.00%. Longi Solar leans bifacial (40% of lineup).


## The two companies


| Attribute | JS Solar | Longi Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Jinhua | Xi'an, Shaanxi |
| Founded | 2011 | 2000 |
| Employees |  | 37,853 |
| Annual capacity |  | 85-90 GW/year |
| Tier 1 | no | yes |
| Listed |  | Shanghai Stock Exchange: 601012 |
| Website | [https://www.jssolar.com](https://www.jssolar.com) | [https://www.longi.com](https://www.longi.com) |

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...


## Catalog & Power


| Measure | JS Solar | Longi Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 137 | 255 | +118 |
| Max Power | 670 W | 670 W |  |
| Avg Power | 430 W | 544 W | +113 W |


## Efficiency


| Measure | JS Solar | Longi Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.45% | 25.00% | +2.55 pp |
| Avg Efficiency | 20.03% | 22.65% | +2.61 pp |


## Reliability & Warranty


| Measure | JS Solar | Longi Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.335%/°C | -0.291%/°C | +0.044 |
| Bifacial Share | 12 (9%) | 101 (40%) | +31 pp |
| Avg Warranty | 25.1 yrs | 27.8 yrs | +2.7 yr |


## Efficiency distribution

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


| Efficiency band | JS Solar | Longi Solar |
| --- | --- | --- |
| \<20% | 44 (32.1%) | 3 (1.2%) |
| 20-21% | 49 (35.8%) | 26 (10.2%) |
| 21-22% | 38 (27.7%) | 47 (18.4%) |
| 22-23% | 6 (4.4%) | 70 (27.5%) |
| 23%+ | 0 | 109 (42.7%) |


## Power distribution

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


| Power band | JS Solar | Longi Solar |
| --- | --- | --- |
| \<400W | 54 (39.4%) | 8 (3.1%) |
| 400-499W | 44 (32.1%) | 81 (31.8%) |
| 500-599W | 32 (23.4%) | 70 (27.5%) |
| 600-699W | 7 (5.1%) | 96 (37.6%) |


## Cell technology

Dominant cell tech: **PERC** (39%)

Dominant cell tech: **N-type** (42%)


| Technology | JS Solar | Longi Solar |
| --- | --- | --- |
| Unknown | 76 (55.5%) | 55 (21.6%) |
| PERC | 53 (38.7%) | 51 (20.0%) |
| TOPCon | 8 (5.8%) | 0 |
| N-type | 0 | 107 (42.0%) |
| Back Contact | 0 | 42 (16.5%) |


## Top panels, JS Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JS210MHC132-670](https://comparepv.com/panel/js-solar-js210mhc132-670) | 670 | 21.6 | -0.340 | Monocrystalline |
| 2 | [JS210MHC132-665](https://comparepv.com/panel/js-solar-js210mhc132-665) | 665 | 21.4 | -0.340 | Monocrystalline |
| 3 | [JS210MHC132-660](https://comparepv.com/panel/js-solar-js210mhc132-660) | 660 | 21.2 | -0.340 | Monocrystalline |
| 4 | [JS210MHC132-655](https://comparepv.com/panel/js-solar-js210mhc132-655) | 655 | 21.1 | -0.340 | Monocrystalline |
| 5 | [JS210MHC132-650](https://comparepv.com/panel/js-solar-js210mhc132-650) | 650 | 20.9 | -0.340 | Monocrystalline |
| 6 | [JS210MHC120-605](https://comparepv.com/panel/js-solar-js210mhc120-605) | 605 | 21.4 | -0.340 | Monocrystalline |
| 7 | [JS210MHC120-600](https://comparepv.com/panel/js-solar-js210mhc120-600) | 600 | 21.2 | -0.340 | Monocrystalline |
| 8 | [JS210MHC120-595](https://comparepv.com/panel/js-solar-js210mhc120-595) | 595 | 21.0 | -0.340 | Monocrystalline |
| 9 | [JS210MHC120-590](https://comparepv.com/panel/js-solar-js210mhc120-590) | 590 | 20.8 | -0.340 | Monocrystalline |
| 10 | [JS210MHC120-585](https://comparepv.com/panel/js-solar-js210mhc120-585) | 585 | 20.7 | -0.340 | Monocrystalline |


## Top panels, Longi Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 2 | [LR8-66HYD-670M](https://comparepv.com/panel/longi-lr8-66hyd-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 3 | [LR7-72HVH-670M](https://comparepv.com/panel/longi-lr7-72hvh-670m) | 670 | 24.8 | -0.260 | Monocrystalline |
| 4 | [LR7-72HVHF-665M](https://comparepv.com/panel/longi-lr7-72hvhf-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 5 | [LR7-72HVDF-665M](https://comparepv.com/panel/longi-lr7-72hvdf-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 6 | [LR8-66HVD-665M](https://comparepv.com/panel/longi-lr8-66hvd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 7 | [LR8-66HYD-665M](https://comparepv.com/panel/longi-lr8-66hyd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 8 | [LR7-72HVD-665M](https://comparepv.com/panel/longi-lr7-72hvd-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 9 | [LR7-72HVH-665M](https://comparepv.com/panel/longi-lr7-72hvh-665m) | 665 | 24.6 | -0.260 | Monocrystalline |
| 10 | [LR7-72HVHF-660M](https://comparepv.com/panel/longi-lr7-72hvhf-660m) | 660 | 24.4 | -0.260 | Monocrystalline |


## Summary

JS Solar is a Chinese manufacturer headquartered in Yixing, Jiangsu Province, founded in 2004 with commercial solar module production beginning around 2007. The company operates at a sub-gigawatt scale and does not appear on major BloombergNEF Tier 1 bankability lists, placing it firmly in the mid-tier segment of the global PV industry. LONGi Green Energy Technology, by contrast, was founded in 2000 and is headquartered in Xi'an, Shaanxi Province; it holds a consistent BloombergNEF Double Tier 1 ranking - covering both PV modules and energy storage - and reported annual module production capacity of approximately 120 GW as of 2025. On institutional footprint, lender recognition, and global manufacturing scale, LONGi operates in a substantially different league.

JS Solar's catalog covers conventional monocrystalline and polycrystalline modules suited to residential rooftop and small commercial installations, with top panel efficiencies reported at around 22.4% and power outputs reaching into the mid-400W range. The product range is broad enough for general-purpose domestic projects but lacks the cell-technology differentiation or independently verified bankability credentials of the larger global names. LONGi's lineup addresses every market tier: the Hi-MO X10, built on the company's proprietary HPBC 2.0 back-contact cell architecture, delivers up to 670 W output and 24.8% module efficiency, making it highly competitive for commercial and industrial rooftop deployments. The Hi-MO 9 is engineered for utility-scale ground-mount projects, while the EcoLife series - including the full-black Hi-MO X10 Artist - targets premium residential buyers with aesthetic requirements. Field data published in 2025 showed LONGi's back-contact modules outgenerating TOPCon equivalents by over 2% in desert conditions, and a heterojunction back-contact laboratory cell reached 27.81% efficiency certified by Germany's ISFH.

For a typical international buyer - whether financing a residential rooftop, a commercial C&I system, or a utility project - LONGi is the stronger default choice, backed by financier-recognized bankability, advanced cell technology, and a global service and warranty infrastructure. JS Solar can be a reasonable option for smaller, self-financed residential installations where Tier 1 status is not a lender requirement and cost sensitivity is the primary driver. The two brands are not interchangeable: the gap in scale, technology leadership, and institutional recognition is substantial.

Written by claude-sonnet from the figures above.


## Other comparisons

- [JS Solar vs A.B. Energy](https://comparepv.com/js-solar-vs-a-b-energy)
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- [JS Solar vs AEET](https://comparepv.com/js-solar-vs-aeet)
- [AIKO vs Longi Solar](https://comparepv.com/aiko-vs-longi-solar)
- [JS Solar vs AKCOME](https://comparepv.com/js-solar-vs-akcome)
- [ARTsolar vs Longi Solar](https://comparepv.com/artsolar-vs-longi-solar)


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Source: https://comparepv.com/js-solar-vs-longi-solar

Not in this file, on the page: the distributions above drawn as charts.