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

# JA Solar vs Loom Solar

JA Solar has the broader catalog (504 vs 10 models). JA Solar leads on peak efficiency at 24.80%. Loom Solar leans bifacial (80% of lineup).


## The two companies


| Attribute | JA Solar | Loom Solar |
| --- | --- | --- |
| Country | China | India |
| Headquarters | Beijing | Faridabad |
| Founded | 2005 | 2018 |
| Employees | 37,289 | 100-500 |
| Annual capacity | 100+ GW/year | 0.3 GW/year |
| Tier 1 | yes |  |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) | [https://www.loomsolar.com](https://www.loomsolar.com) |

JA Solar is a global leader in the manufacturing of high-performance photovoltaic products. Founded in 2005, the company designs, develops, manufactures, and sells solar cells and modules. JA Solar's products are used in ground-mounted power plants, commercial & industrial rooftop PV systems, and residential rooftop...

Loom Solar is an Indian manufacturer of solar panels, inverters, and lithium batteries, primarily serving the residential and commercial segments. Founded in 2018 and headquartered in Faridabad, Haryana, the company sells its products through a network of over 10,000 dealers across India and exports to more than 10...


## Catalog & Power


| Measure | JA Solar | Loom Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 10 | +494 |
| Max Power | 740 W | 685 W | +55 W |
| Avg Power | 456 W | 562 W | +106 W |


## Efficiency


| Measure | JA Solar | Loom Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 23.23% | +1.57 pp |
| Avg Efficiency | 21.13% | 22.13% | +0.99 pp |


## Reliability & Warranty


| Measure | JA Solar | Loom Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.338%/°C | +0.016 |
| Bifacial Share | 238 (47%) | 8 (80%) | +33 pp |
| Avg Warranty | 27.9 yrs | 29.4 yrs | +1.6 yr |


## Efficiency distribution

Loom Solar skews to higher efficiency: 30% of lineup is 23%+


| Efficiency band | JA Solar | Loom Solar |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 0 |
| 20-21% | 99 (19.6%) | 1 (10.0%) |
| 21-22% | 112 (22.2%) | 3 (30.0%) |
| 22-23% | 107 (21.2%) | 3 (30.0%) |
| 23%+ | 74 (14.7%) | 3 (30.0%) |


## Power distribution

Loom Solar offers more 600W+ panels (40% of lineup)


| Power band | JA Solar | Loom Solar |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 1 (10.0%) |
| 400-499W | 173 (34.3%) | 0 |
| 500-599W | 120 (23.8%) | 5 (50.0%) |
| 600-699W | 60 (11.9%) | 4 (40.0%) |
| 700W+ | 9 (1.8%) | 0 |


## Cell technology

Dominant cell tech: **PERC** (49%)

Dominant cell tech: **TOPCon** (70%)


| Technology | JA Solar | Loom Solar |
| --- | --- | --- |
| PERC | 247 (49.0%) | 2 (20.0%) |
| TOPCon | 146 (29.0%) | 7 (70.0%) |
| N-type | 90 (17.9%) | 1 (10.0%) |
| Unknown | 16 (3.2%) | 0 |
| HJT | 5 (1.0%) | 0 |


## Top panels, JA Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JAM66D46-740/LB](https://comparepv.com/panel/ja-solar-jam66d46-740-lb) | 740 | 23.8 | -0.290 | Monocrystalline |
| 2 | [JAM66D46-735/LB](https://comparepv.com/panel/ja-solar-jam66d46-735-lb) | 735 | 23.7 | -0.290 | Monocrystalline |
| 3 | [JAM66D46-730/LB](https://comparepv.com/panel/ja-solar-jam66d46-730-lb) | 730 | 23.5 | -0.290 | Monocrystalline |
| 4 | [JAM66D46-725/LB](https://comparepv.com/panel/ja-solar-jam66d46-725-lb) | 725 | 23.3 | -0.290 | Monocrystalline |
| 5 | [JAM66D46-720/LB](https://comparepv.com/panel/ja-solar-jam66d46-720-lb) | 720 | 23.2 | -0.290 | Monocrystalline |
| 6 | [JAM66D46-715/LB](https://comparepv.com/panel/ja-solar-jam66d46-715-lb) | 715 | 23.0 | -0.290 | Monocrystalline |
| 7 | [JAM66D46-710/LB](https://comparepv.com/panel/ja-solar-jam66d46-710-lb) | 710 | 22.9 | -0.290 | Monocrystalline |
| 8 | [JAM66D46-705/LB](https://comparepv.com/panel/ja-solar-jam66d46-705-lb) | 705 | 22.7 | -0.290 | Monocrystalline |
| 9 | [JAM66D46-700/LB](https://comparepv.com/panel/ja-solar-jam66d46-700-lb) | 700 | 22.5 | -0.290 | Monocrystalline |
| 10 | [JAM66D46-695/LB](https://comparepv.com/panel/ja-solar-jam66d46-695-lb) | 695 | 22.4 | -0.290 | Monocrystalline |


## Top panels, Loom Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SHARK 685](https://comparepv.com/panel/loom-solar-shark-685) | 685 | 22.0 | -0.360 | Monocrystalline |
| 2 | [SHARK625](https://comparepv.com/panel/loom-solar-shark625) | 625 | 23.2 | -0.390 | Monocrystalline |
| 3 | [SHARK620](https://comparepv.com/panel/loom-solar-shark620) | 620 | 23.0 | -0.390 | Monocrystalline |
| 4 | [SHARK 600](https://comparepv.com/panel/loom-solar-shark-600) | 600 | 23.2 | -0.290 | Monocrystalline |
| 5 | [SHARK-590](https://comparepv.com/panel/loom-solar-shark-590) | 590 | 22.8 | -0.300 | Monocrystalline |
| 6 | [HD144N-570](https://comparepv.com/panel/loom-solar-hd144n-570) | 570 | 22.1 | -0.300 | Monocrystalline |
| 7 | [HD144N-560](https://comparepv.com/panel/loom-solar-hd144n-560) | 560 | 21.7 | -0.300 | Monocrystalline |
| 8 | [SHARK 550](https://comparepv.com/panel/loom-solar-shark-550) | 550 | 21.4 | -0.350 | Monocrystalline |
| 9 | [HD144N-550](https://comparepv.com/panel/loom-solar-hd144n-550) | 550 | 21.3 | -0.300 | Monocrystalline |
| 10 | [SHARK 275](https://comparepv.com/panel/loom-solar-shark-275) | 275 | 20.6 | -0.400 | Monocrystalline |


## Summary

JA Solar and Loom Solar represent fundamentally different tiers of the global solar manufacturing landscape. JA Solar, founded in 2005 and headquartered in China, is one of the world's largest PV module producers, with a production capacity exceeding 100 GW, a workforce of over 37,000 employees, and a confirmed Tier 1 bankable status from S&P Global Commodity Insights. Listed on the Shenzhen Stock Exchange, the company has shipped close to 300 GW cumulatively and operates across 178 countries through 16 overseas subsidiaries. Loom Solar, by contrast, was founded in 2018 in Faridabad, India, employs between 100 and 500 people, and operates a 300 MW production facility - roughly 300 times smaller than JA Solar's capacity. Loom Solar does not hold Tier 1 status and is primarily active in the Indian domestic market and a handful of export destinations.

On the technology side, JA Solar's portfolio of over 524 panel models spans PERC (its dominant cell technology at over 52% of the lineup) and TOPCon, reaching a maximum efficiency of 24.4% and a peak output of 740 Wp, with an average temperature coefficient of -0.32%/°C. Nearly 44% of its portfolio is bifacial, making it well-suited for utility-scale ground-mount projects, commercial C&I rooftop installations, and high-density residential systems. Loom Solar manufactures mono-PERC, shingled, and bifacial panels with outputs reportedly up to 730 Wp, primarily targeting residential rooftop installs and small off-grid systems for Indian homeowners and small businesses. Its bundled inverter-plus-panel offerings and extensive domestic dealer network of over 10,000 partners are core strengths within the Indian market.

For international buyers - particularly those sourcing for European, North American, or large-scale Asian markets - JA Solar is the clear choice: it offers a mature, bankable product range, deep technical documentation, reliable supply chains, and warranties averaging nearly 28 years. Loom Solar is a credible and growing player for India-focused residential and small commercial deployments, but lacks the global infrastructure, Tier 1 certification, and product data depth required for buyers operating outside the Indian market.

Written by claude-sonnet from the figures above.


## Other comparisons

- [JA Solar vs A.B. Energy](https://comparepv.com/ja-solar-vs-a-b-energy)
- [AE Solar vs Loom Solar](https://comparepv.com/ae-solar-vs-loom-solar)
- [JA Solar vs AEET](https://comparepv.com/ja-solar-vs-aeet)
- [AIKO vs Loom Solar](https://comparepv.com/aiko-vs-loom-solar)
- [JA Solar vs AKCOME](https://comparepv.com/ja-solar-vs-akcome)
- [ARTsolar vs Loom Solar](https://comparepv.com/artsolar-vs-loom-solar)


---

Source: https://comparepv.com/ja-solar-vs-loom-solar

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