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

# Aptos Solar vs JA Solar

JA Solar has the broader catalog (504 vs 33 models). JA Solar leads on peak efficiency at 24.80%.


## The two companies


| Attribute | Aptos Solar | JA Solar |
| --- | --- | --- |
| Country | USA | China |
| Headquarters | San Antonio, TX | Beijing |
| Founded | 2019 | 2005 |
| Employees | 14 | 37,289 |
| Annual capacity |  | 100+ GW/year |
| Tier 1 |  | yes |
| Listed |  | SZSE: 002459 |
| Website | [https://www.aptossolar.com](https://www.aptossolar.com) | [https://www.jasolar.com](https://www.jasolar.com) |

Aptos Solar Technology is a U.S. based company that leverages global sourcing to provide innovative and affordable solar technology. They offer high-performance solar panels optimized with their patented Dual Nano Absorber (DNA) technology for residential, commercial, and utility applications. The company is committed...

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 | Aptos Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 33 | 504 | +471 |
| Max Power | 550 W | 740 W | +190 W |
| Avg Power | 432 W | 456 W | +25 W |


## Efficiency


| Measure | Aptos Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 21.29% | 24.80% | +3.51 pp |
| Avg Efficiency | 20.58% | 21.13% | +0.56 pp |


## Reliability & Warranty


| Measure | Aptos Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.334%/°C | -0.322%/°C | +0.012 |
| Bifacial Share | 17 (52%) | 238 (47%) | +4 pp |
| Avg Warranty | 30.0 yrs | 27.9 yrs | +2.1 yr |


## Efficiency distribution

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


| Efficiency band | Aptos Solar | JA Solar |
| --- | --- | --- |
| \<20% | 5 (15.2%) | 112 (22.2%) |
| 20-21% | 20 (60.6%) | 99 (19.6%) |
| 21-22% | 8 (24.2%) | 112 (22.2%) |
| 22-23% | 0 | 107 (21.2%) |
| 23%+ | 0 | 74 (14.7%) |


## Power distribution

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


| Power band | Aptos Solar | JA Solar |
| --- | --- | --- |
| \<400W | 6 (18.2%) | 142 (28.2%) |
| 400-499W | 24 (72.7%) | 173 (34.3%) |
| 500-599W | 3 (9.1%) | 120 (23.8%) |
| 600-699W | 0 | 60 (11.9%) |
| 700W+ | 0 | 9 (1.8%) |


## Cell technology

Dominant cell tech: **PERC** (100%)

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


| Technology | Aptos Solar | JA Solar |
| --- | --- | --- |
| PERC | 33 (100.0%) | 247 (49.0%) |
| TOPCon | 0 | 146 (29.0%) |
| N-type | 0 | 90 (17.9%) |
| Unknown | 0 | 16 (3.2%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, Aptos Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [DNA-144-BF10-550W-DG](https://comparepv.com/panel/aptos-solar-dna-144-bf10-550w-dg) | 550 | 21.3 | -0.335 | Monocrystalline |
| 2 | [DNA-144-BF10-545W-DG](https://comparepv.com/panel/aptos-solar-dna-144-bf10-545w-dg) | 545 | 21.1 | -0.335 | Monocrystalline |
| 3 | [DNA-144-BF10-540W-DG](https://comparepv.com/panel/aptos-solar-dna-144-bf10-540w-dg) | 540 | 20.9 | -0.335 | Monocrystalline |
| 4 | [DNA-120-MF10-460W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-460w) | 460 | 21.3 | -0.350 | Monocrystalline |
| 5 | [DNA-120-BF10-460W](https://comparepv.com/panel/aptos-solar-dna-120-bf10-460w) | 460 | 21.3 | -0.350 | Monocrystalline |
| 6 | [DNA-120-MF10-455W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-455w) | 455 | 21.0 | -0.350 | Monocrystalline |
| 7 | [DNA-120-BF10-455W](https://comparepv.com/panel/aptos-solar-dna-120-bf10-455w) | 455 | 21.0 | -0.350 | Monocrystalline |
| 8 | [DNA-144-MF26-450W](https://comparepv.com/panel/aptos-solar-dna-144-mf26-450w) | 450 | 20.2 | -0.380 | Monocrystalline |
| 9 | [DNA-120-BF10-450W](https://comparepv.com/panel/aptos-solar-dna-120-bf10-450w) | 450 | 20.8 | -0.350 | Monocrystalline |
| 10 | [DNA-120-MF10-450W](https://comparepv.com/panel/aptos-solar-dna-120-mf10-450w) | 450 | 20.8 | -0.350 | 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

Aptos Solar was founded in 2019 and is headquartered in California, USA, with module manufacturing carried out in Vietnam. Despite a team of just 14 employees, the company has developed a focused portfolio of 33 panel models, all built on its proprietary PERC-based "Dual Nano Absorber" (DNA) technology. JA Solar, by contrast, is one of the world's largest solar manufacturers, established in 2005 and listed on the Shenzhen Stock Exchange (SZSE). With over 37,000 employees, a production capacity exceeding 100 GW per year, and Tier 1 bankable status confirmed by S&P Global Commodity Insights, JA Solar operates across 178 countries through 16 overseas subsidiaries and has reached nearly 300 GW in cumulative global shipments.

Aptos Solar's entire portfolio relies on PERC cell technology, reaching a maximum panel efficiency of 21.29% and an average of 20.58%. A standout feature is the 30-year product and performance warranty - among the longest in the industry - paired with a low annual degradation rate of 0.54%. With 51.5% of its portfolio consisting of bifacial modules, Aptos panels are a solid choice for residential rooftop installs where long-term reliability and warranty depth are the primary criteria. JA Solar's far broader portfolio of 524 models spans up to 740 Wp and reaches a peak efficiency of 24.4%, with an average efficiency of 20.87% across all models. Its average temperature coefficient for Pmax of -0.323%/°C is slightly more favorable than Aptos's -0.334%/°C, offering a modest advantage in warmer operating conditions. JA Solar's scale, Tier 1 bankability, and logistical reach make it the natural fit for utility-scale ground-mount projects and commercial C&I installations requiring high-volume supply and project-finance-grade credentials.

For international buyers choosing between the two, the decision hinges largely on project scale and risk tolerance. JA Solar's Tier 1 status, extensive distribution network, and broad product range - spanning PERC and higher-efficiency TOPCon modules - make it the lower-risk option for large or commercially financed projects. Aptos Solar is a compelling niche alternative for residential installers who prioritize the 30-year warranty and the DNA technology's low degradation profile, though its limited geographic reach and small company scale are factors worth weighing when evaluating long-term service support.

Written by claude-sonnet from the figures above.


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

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