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

# Bruk-Bet vs JA Solar

JA Solar has the broader catalog (504 vs 20 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | Bruk-Bet | JA Solar |
| --- | --- | --- |
| Country | Poland | China |
| Headquarters | Nieciecza | Beijing |
| Founded | 1984 | 2005 |
| Employees | 1000+ | 37,289 |
| Annual capacity |  | 100+ GW/year |
| Tier 1 |  | yes |
| Listed |  | SZSE: 002459 |
| Website | [http://www.solar.bruk-bet.pl](http://www.solar.bruk-bet.pl) | [https://www.jasolar.com](https://www.jasolar.com) |

Bruk-Bet Fotowoltaika is a leading Polish manufacturer of photovoltaic (PV) and BIPV modules, and part of the larger Bruk-Bet Group. The company has been operating in the construction industry since 1984 and has been active in renewable energy since 2011. Bruk-Bet is known for its high-quality building solutions and...

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...


## Catalog & Power


| Measure | Bruk-Bet | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 20 | 504 | +484 |
| Max Power | 480 W | 740 W | +260 W |
| Avg Power | 416 W | 456 W | +40 W |


## Efficiency


| Measure | Bruk-Bet | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.17% | 24.80% | +2.63 pp |
| Avg Efficiency | 20.80% | 21.13% | +0.33 pp |


## Reliability & Warranty


| Measure | Bruk-Bet | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.324%/°C | -0.322%/°C | +0.003 |
| Bifacial Share | 4 (20%) | 238 (47%) | +27 pp |
| Avg Warranty | 26.5 yrs | 27.9 yrs | +1.4 yr |


## Efficiency distribution

JA Solar skews to higher efficiency: 15% of lineup is 23%+


| Efficiency band | Bruk-Bet | JA Solar |
| --- | --- | --- |
| \<20% | 2 (10.0%) | 112 (22.2%) |
| 20-21% | 11 (55.0%) | 99 (19.6%) |
| 21-22% | 5 (25.0%) | 112 (22.2%) |
| 22-23% | 2 (10.0%) | 107 (21.2%) |
| 23%+ | 0 | 74 (14.7%) |


## Power distribution

JA Solar offers more 600W+ panels (14% of lineup)


| Power band | Bruk-Bet | JA Solar |
| --- | --- | --- |
| \<400W | 7 (35.0%) | 142 (28.2%) |
| 400-499W | 13 (65.0%) | 173 (34.3%) |
| 500-599W | 0 | 120 (23.8%) |
| 600-699W | 0 | 60 (11.9%) |
| 700W+ | 0 | 9 (1.8%) |


## Cell technology

Dominant cell tech: **PERC** (75%)

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


| Technology | Bruk-Bet | JA Solar |
| --- | --- | --- |
| PERC | 15 (75.0%) | 247 (49.0%) |
| N-type | 3 (15.0%) | 90 (17.9%) |
| TOPCon | 2 (10.0%) | 146 (29.0%) |
| Unknown | 0 | 16 (3.2%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, Bruk-Bet


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [PEM.GB-480 N-Type](https://comparepv.com/panel/bruk-bet-pem-gb-480-n-type) | 480 | 22.2 | -0.290 | Monocrystalline |
| 2 | [PEM.GB-480](https://comparepv.com/panel/bruk-bet-pem-gb-480) | 480 | 22.2 | -0.290 | Monocrystalline |
| 3 | [PEM.GB-470 N-Type](https://comparepv.com/panel/bruk-bet-pem-gb-470-n-type) | 470 | 21.7 | -0.290 | Monocrystalline |
| 4 | [PEM.GB-470](https://comparepv.com/panel/bruk-bet-pem-gb-470) | 470 | 21.7 | -0.290 | Monocrystalline |
| 5 | [PEM.WB-465](https://comparepv.com/panel/bruk-bet-pem-wb-465) | 465 | 21.3 | -0.324 | Monocrystalline |
| 6 | [PEM.WB-460](https://comparepv.com/panel/bruk-bet-pem-wb-460) | 460 | 21.1 | -0.324 | Monocrystalline |
| 7 | [PEM.WS-460](https://comparepv.com/panel/bruk-bet-pem-ws-460) | 460 | 21.1 | -0.324 | Monocrystalline |
| 8 | [PEM.WS-455](https://comparepv.com/panel/bruk-bet-pem-ws-455) | 455 | 20.8 | -0.324 | Monocrystalline |
| 9 | [PEM.BB-450](https://comparepv.com/panel/bruk-bet-pem-bb-450) | 450 | 20.6 | -0.324 | Monocrystalline |
| 10 | [PEM.WB-410](https://comparepv.com/panel/bruk-bet-pem-wb-410) | 410 | 20.8 | -0.324 | Monocrystalline |


## 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 |


## Summary

Bruk-Bet is a Polish manufacturer founded in 1984, initially focused on construction materials before entering the solar module market in 2012. Operating from Tarnów, the company employs over 1,000 people and has built a photovoltaic production capacity of approximately 120 MW per year, making it one of the very few module manufacturers based in Poland. Its panels are produced using technology from Swiss firm Meyer Burger and carry certifications for PID, LID, ammonia, and salt-fog resistance. JA Solar, founded in 2005 in China and listed on the Shenzhen Stock Exchange, operates on an entirely different scale - with over 37,000 employees, a production capacity exceeding 100 GW, and confirmed Tier 1 bankability that facilitates financing for large institutional projects. PVEL's 2025 Scorecard named JA Solar a Top Performer for the tenth consecutive time, and the company holds the number two position on SolarReviews' Best Solar Brands of 2025 ranking. While Bruk-Bet focuses primarily on the Polish and European residential market, JA Solar maintains a global commercial footprint spanning residential, commercial, and utility-scale segments across multiple continents.

Both manufacturers rely on PERC as their leading cell technology - 60% of Bruk-Bet's 20-panel portfolio and 52% of JA Solar's 524-panel portfolio. However, the two diverge sharply in scale and ceiling performance. JA Solar's maximum panel power reaches 740 Wp and its highest module efficiency stands at 24.4%, compared to 480 Wp and 22.17% for Bruk-Bet. JA Solar also carries a significantly higher share of bifacial modules - 44.3% of its lineup versus 20% for Bruk-Bet - making it better suited for utility-scale ground-mount and large commercial C&I projects where bifacial energy gain and high unit wattage are decisive factors. Bruk-Bet panels are a strong fit for residential rooftop installs and smaller commercial projects in the Polish market, where local warranty enforcement and Polish-language technical support carry meaningful practical value. Average warranty lengths are comparable - 26.5 years for Bruk-Bet and 27.85 years for JA Solar - and temperature coefficients for Pmax are nearly identical at -0.3244%/°C and -0.3226%/°C respectively, giving JA Solar a marginal edge in hot-climate performance.

For a Polish homeowner or small-scale installer, Bruk-Bet offers the reassurance of domestic production, local after-sales service, and a long-standing product warranty backed by a company operating within Polish jurisdiction. For larger commercial integrators or international buyers sourcing modules for utility-scale or C&I projects, JA Solar's Tier 1 status, broad high-wattage portfolio, independently verified reliability record, and global supply chain make it the more scalable and bankable choice.

Written by claude-sonnet from the figures above.


## Other comparisons

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- [ARTsolar vs JA Solar](https://comparepv.com/artsolar-vs-ja-solar)


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Source: https://comparepv.com/bruk-bet-vs-ja-solar

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