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Bruk-Bet vs JA Solar - solar panel manufacturer comparison

Bruk-Bet
Poland Founded 1984
Read the Bruk-Bet review
VS
JA Solar
China Founded 2005 Tier 1
Read the JA Solar review
At a glance

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).

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
20 504
Highest power
480 Wp 740 Wp
Best efficiency
22.2% 24.8%
Average efficiency
20.8% 21.1%
Bifacial share
20% 47%
Average warranty
26 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
Bruk-Bet

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...

Founded
1984
Headquarters
Nieciecza, Poland
Employees
1000+
JA Solar

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...

Founded
2005
Headquarters
Beijing, China
Annual capacity
100+ GW/year
Employees
37,289
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Bruk-Bet JA Solar
Catalog & Power
Panel Models 20 504+484
Max Power 480 W 740 W+260 W
Avg Power 416 W 456 W+40 W
Efficiency
Max Efficiency 22.17% 24.80%+2.63 pp
Avg Efficiency 20.80% 21.13%+0.33 pp
Reliability & Warranty
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

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

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

Power spread
Share of each catalogue in every power band

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

Bruk-Bet cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (75%)

JA Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (49%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

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.

Generated by Claude Sonnet · 2026-05-13

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 358 JA 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.