---
title: "Longi Solar vs MY Solar - Brand Comparison | ComparePV"
description: "Compare Longi Solar vs MY Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/longi-solar-vs-my-solar"
image: "https://comparepv.com/og/compare/manufacturers/longi-solar/my-solar.png"
---

# Longi Solar vs MY Solar

Longi Solar has the broader catalog (255 vs 140 models). Longi Solar leads on peak efficiency at 25.00%.


## The two companies


| Attribute | Longi Solar | MY Solar |
| --- | --- | --- |
| Country | China |  |
| Headquarters | Xi'an, Shaanxi |  |
| Founded | 2000 |  |
| Employees | 37,853 |  |
| Annual capacity | 85-90 GW/year |  |
| Tier 1 | yes | no |
| Listed | Shanghai Stock Exchange: 601012 |  |
| Website | [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 | Longi Solar | MY Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 255 | 140 | +115 |
| Max Power | 670 W | 740 W | +70 W |
| Avg Power | 544 W | 418 W | +126 W |


## Efficiency


| Measure | Longi Solar | MY Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 25.00% | 23.82% | +1.18 pp |
| Avg Efficiency | 22.65% | 19.87% | +2.77 pp |


## Reliability & Warranty


| Measure | Longi Solar | MY Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.291%/°C | -0.333%/°C | +0.042 |
| Bifacial Share | 101 (40%) | 54 (39%) | +1 pp |
| Avg Warranty | 27.8 yrs | 27.1 yrs | +0.8 yr |


## Efficiency distribution

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


| Efficiency band | Longi Solar | MY Solar |
| --- | --- | --- |
| \<20% | 3 (1.2%) | 75 (53.6%) |
| 20-21% | 26 (10.2%) | 10 (7.1%) |
| 21-22% | 47 (18.4%) | 19 (13.6%) |
| 22-23% | 70 (27.5%) | 30 (21.4%) |
| 23%+ | 109 (42.7%) | 6 (4.3%) |


## Power distribution

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


| Power band | Longi Solar | MY Solar |
| --- | --- | --- |
| \<400W | 8 (3.1%) | 66 (47.1%) |
| 400-499W | 81 (31.8%) | 35 (25.0%) |
| 500-599W | 70 (27.5%) | 10 (7.1%) |
| 600-699W | 96 (37.6%) | 18 (12.9%) |
| 700W+ | 0 | 11 (7.9%) |


## Cell technology

Dominant cell tech: N-type (42%)

Dominant cell tech: PERC (58%)


| Technology | Longi Solar | MY Solar |
| --- | --- | --- |
| N-type | 107 (42.0%) | 0 |
| Unknown | 55 (21.6%) | 5 (3.6%) |
| PERC | 51 (20.0%) | 81 (57.9%) |
| Back Contact | 42 (16.5%) | 0 |
| HJT | 0 | 29 (20.7%) |
| TOPCon | 0 | 25 (17.9%) |


## 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 |


## Top panels, MY Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [MS740N-HJTGB](https://comparepv.com/panel/my-solar-ms740n-hjtgb) | 740 | 23.8 | -0.240 | Monocrystalline |
| 2 | [MS735N-HJTGB](https://comparepv.com/panel/my-solar-ms735n-hjtgb) | 735 | 23.7 | -0.240 | Monocrystalline |
| 3 | [MS730N-HJTGB](https://comparepv.com/panel/my-solar-ms730n-hjtgb) | 730 | 23.5 | -0.240 | Monocrystalline |
| 4 | [MS725N-HJTGB](https://comparepv.com/panel/my-solar-ms725n-hjtgb) | 725 | 23.3 | -0.240 | Monocrystalline |
| 5 | [MS720N-HJTGB](https://comparepv.com/panel/my-solar-ms720n-hjtgb) | 720 | 23.2 | -0.260 | Monocrystalline |
| 6 | [MS715N-HJTGB](https://comparepv.com/panel/my-solar-ms715n-hjtgb) | 715 | 23.0 | -0.260 | Monocrystalline |
| 7 | [MS710N-HJTGB](https://comparepv.com/panel/my-solar-ms710n-hjtgb) | 710 | 22.9 | -0.260 | Monocrystalline |
| 8 | [MS705N-HJTGB](https://comparepv.com/panel/my-solar-ms705n-hjtgb) | 705 | 22.7 | -0.260 | Monocrystalline |
| 9 | [MY-M12/144-700](https://comparepv.com/panel/my-solar-my-m12-144-700) | 700 | 22.3 | -0.350 | Monocrystalline |
| 10 | [MS700N-DHBG](https://comparepv.com/panel/my-solar-ms700n-dhbg) | 700 | 22.5 | -0.300 | Monocrystalline |


## Summary

Longi Solar is a Chinese manufacturer headquartered in Xi'an, founded in 2000, and widely recognized as one of the largest solar module suppliers in the world. The company holds a confirmed BloombergNEF Tier 1 bankability rating maintained continuously through Q3 2025 and into Q1 2026, meaning lenders and project finance institutions routinely accept its modules as collateral. In the first nine months of 2025 alone, Longi shipped more than 63 GW of cells and modules - a scale that few competitors can match. MY Solar, by contrast, does not appear in any of the major industry reference points searched for this report: it is absent from BloombergNEF Tier 1 lists, PVEL Top Performer rankings, and leading trade publications such as pv-tech.org and pv-magazine.com. This suggests either a very limited production scale or a focus on markets that fall outside mainstream institutional coverage. On documented institutional footprint, Longi Solar leads by a wide margin.

Longi's current product range spans all major deployment contexts. The Hi-Mo 9 series, powered by HPBC 2.0 back contact technology, targets utility-scale ground-mount projects with outputs exceeding 670 W per panel and module efficiency of 24.8%. For residential rooftop and light commercial applications, Longi introduced the EcoLife brand in 2025, built around the Hi-Mo X10 and Hi-Mo S10 modules using HIBC technology - a hybrid of heterojunction and back contact architectures - with cell efficiency reaching 27.3% and a 30-year combined power and product warranty. No comparable, independently verifiable product portfolio exists in public sources for MY Solar, making it impossible to assess its technology generation, warranty terms, or suitability for specific use cases.

For most international buyers, whether sourcing for residential rooftops, commercial installations, or utility-scale projects, Longi Solar is the substantially lower-risk choice. Its bankability, global service infrastructure, and independently tested performance data provide a level of assurance that MY Solar cannot currently demonstrate through available public evidence. MY Solar should only be considered if a buyer has direct, verified knowledge of the specific distributor and can independently validate product certifications - the two brands are not interchangeable from a risk-management perspective.

Written by claude-sonnet from the figures above.


## Other comparisons

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


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

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