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

# JA Solar vs Solplanet

JA Solar has the broader catalog (504 vs 0 models). JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | JA Solar | Solplanet |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Beijing | Shanghai |
| Founded | 2005 | 2007 |
| Employees | 37,289 | 127 |
| Annual capacity | 100+ GW/year | 10 GW/year |
| Tier 1 | yes |  |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) | [https://www.solplanet.net](https://www.solplanet.net) |

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...

Solplanet, a brand of AISWEI, manufactures user-friendly and reliable solar inverters, EV chargers and monitoring solutions. AISWEI, formerly SMA's Chinese subsidiary, has been manufacturing high-quality products since 2007. The company is driven by the idea of 'solar for everybody', making solar energy accessible...


## Catalog & Power


| Measure | JA Solar | Solplanet | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 0 | +504 |
| Max Power | 740 W | 0 W | +740 W |
| Avg Power | 456 W | 0 W | +456 W |


## Efficiency


| Measure | JA Solar | Solplanet | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | - |  |
| Avg Efficiency | 21.13% | - |  |


## Reliability & Warranty


| Measure | JA Solar | Solplanet | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | - |  |
| Bifacial Share | 238 (47%) | 0 (0%) | +47 pp |
| Avg Warranty | 27.9 yrs | - |  |


## Efficiency distribution

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


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


## Power distribution

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


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


## Cell technology

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


| Technology | JA Solar | Solplanet |
| --- | --- | --- |
| PERC | 247 (49.0%) | 0 |
| TOPCon | 146 (29.0%) | 0 |
| N-type | 90 (17.9%) | 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 |


## Summary

JA Solar and Solplanet are both Chinese companies active in the solar energy industry, but comparing them directly reveals a fundamental asymmetry: JA Solar is one of the world's largest solar panel manufacturers, while Solplanet - the brand of AISWEI Technology, formerly the Chinese subsidiary of SMA - is primarily an inverter and energy storage manufacturer, not a panel producer. Founded in 2005, JA Solar employs over 37,000 people, holds Tier 1 bankable status, is publicly listed on the Shenzhen Stock Exchange, and operates with a production capacity exceeding 100 GW per year. Its panel portfolio spans 524 models with a maximum efficiency of 24.4% and an average efficiency of approximately 20.9%, with PERC technology accounting for over 52% of the lineup and TOPCon gaining ground in newer series. Solplanet, founded in 2007, has just 127 employees and a stated capacity of 10 GW - but that capacity reflects inverter production, not panels. No panel models from Solplanet appear in the product database.

For residential rooftop installs and utility-scale ground-mount projects, JA Solar offers a mature, well-documented portfolio. Its Deep Blue 4.0 Pro series (bifacial TOPCon modules) is well suited to high-density residential rooftops where watts-per-square-meter matter, while its broader PERC lineup remains cost-competitive for large commercial C&I arrays and agricultural projects. The average warranty across its portfolio approaches 28 years, and its Tier 1 rating simplifies project financing. Solplanet, on the other hand, competes in the inverter and hybrid storage system space, where it has made significant inroads: AISWEI ranked first globally in residential string inverter shipments in 2024 and placed sixth overall with a record 18.9 GW shipped - achieving 28% year-on-year growth, well above the global market average. Its hybrid inverters are gaining traction in European residential and C&I storage applications.

For an international buyer selecting between the two, the choice is really about which part of the system is under consideration. JA Solar is a compelling, low-risk choice for solar modules across most project types, backed by scale, bankability, and a broad efficiency range. Solplanet is worth evaluating as a cost-effective inverter and hybrid storage solution, particularly for installers who want a credible alternative to premium European inverter brands without sacrificing reliability or market longevity.

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 Solplanet](https://comparepv.com/ae-solar-vs-solplanet)
- [JA Solar vs AEET](https://comparepv.com/ja-solar-vs-aeet)
- [AIKO vs Solplanet](https://comparepv.com/aiko-vs-solplanet)
- [JA Solar vs AKCOME](https://comparepv.com/ja-solar-vs-akcome)
- [ARTsolar vs Solplanet](https://comparepv.com/artsolar-vs-solplanet)


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

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