JA Solar vs Ulica Solar - solar panel manufacturer comparison
JA Solar has the broader catalog (504 vs 76 models). JA Solar leads on peak efficiency at 24.80%. Ulica Solar leans bifacial (58% 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.
The two companies
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
- Listed
- SZSE: 002459
- Tier 1 bankable
- Yes
Catalogue against catalogue
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.
What each of them builds
JA Solar skews to higher efficiency: 15% of lineup is 23%+
Ulica Solar offers more 600W+ panels (43% of lineup)
Dominant cell tech: <strong>PERC</strong> (49%)
Dominant cell tech: <strong>TOPCon</strong> (95%)
The flagships
Written summary
JA Solar, founded in 2005 and listed on the Shenzhen Stock Exchange (SZSE), employs over 37,000 people and operates annual production capacity exceeding 100 GW, placing it among the top global solar module manufacturers. The company holds Tier 1 bankable status, which facilitates project financing across institutional, commercial, and utility-scale buyers worldwide. Wood Mackenzie ranked JA Solar jointly at the top of its global module manufacturer ranking for the first half of 2025, with the company shipping approximately 75-79 GW in 2024. Its catalogue spans 524 panel models, with peak power reaching 740 Wp and maximum efficiency of 24.4%. Ulica Solar, founded in 2014, is a considerably smaller Chinese manufacturer that does not hold Tier 1 bankable status. It offers a focused portfolio of 76 models, with the vast majority - 94.7% - based on TOPCon cell technology, yielding a noticeably higher average efficiency of 22.26% and average module power of 563.6 Wp, compared to JA Solar's averages of 20.87% and 441.7 Wp respectively.
JA Solar's broad product range - spanning PERC-dominant modules across a wide power spectrum - suits a diverse set of deployment scenarios, from residential rooftop installs to large utility-scale ground-mount projects and commercial C&I applications. Its global distribution network, financial stability, and Tier 1 standing make it a low-risk procurement choice for EPCs and developers who require bankable products backed by long-term warranty coverage (averaging 27.9 years across the portfolio). Ulica Solar's competitive edge lies in its technology-forward TOPCon concentration, which delivers higher average efficiency, a more favorable temperature coefficient (-0.303%/°C vs. -0.323% for JA Solar), and a greater share of bifacial modules (57.9% vs. 44.3%) - attributes that benefit space-constrained commercial rooftops, dual-use agrivoltaic systems, and ground-mount installations seeking maximum energy yield per panel.
For international buyers where bankability, supply chain resilience, and broad product availability are primary criteria, JA Solar is the more established and lower-risk option. Ulica Solar presents a technically compelling alternative for buyers prioritizing modern TOPCon efficiency gains and bifacial performance, though its absence from the Tier 1 bankable list may limit suitability for project-financed or institutionally funded developments where lender approval of module suppliers is required.
Generated by Claude Sonnet · 2026-05-12
Other brand comparisons
Shop prices: See 393 JA Solar offers · See 7 Ulica 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.