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

# JA Solar vs Tescom Solar

JA Solar has the broader catalog (504 vs 1 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | JA Solar | Tescom Solar |
| --- | --- | --- |
| Country | China | Turkey |
| Headquarters | Beijing | Izmir |
| Founded | 2005 | 1980 |
| Employees | 37,289 | 51-200 |
| Annual capacity | 100+ GW/year |  |
| Tier 1 | yes |  |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) | [https://www.tescom-ups.com](https://www.tescom-ups.com) |

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...

TESCOM A.Ş. was established in Izmir to operate in the field of power electronics based on the uninterrupted energy needs of Turkish industry. The company started its operations in 1980 to produce inverters and electronic control devices. Tescom Solar helps maximize the efficiency of solar power plants and reduce...


## Catalog & Power


| Measure | JA Solar | Tescom Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 1 | +503 |
| Max Power | 740 W | 275 W | +465 W |
| Avg Power | 456 W | 275 W | +181 W |


## Efficiency


| Measure | JA Solar | Tescom Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 16.77% | +8.03 pp |
| Avg Efficiency | 21.13% | 16.77% | +4.36 pp |


## Reliability & Warranty


| Measure | JA Solar | Tescom Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.440%/°C | +0.118 |
| 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 | Tescom Solar |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 1 (100.0%) |
| 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 | Tescom Solar |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 1 (100.0%) |
| 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 | Tescom Solar |
| --- | --- | --- |
| PERC | 247 (49.0%) | 0 |
| TOPCon | 146 (29.0%) | 0 |
| N-type | 90 (17.9%) | 0 |
| Unknown | 16 (3.2%) | 1 (100.0%) |
| 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 |


## Top panels, Tescom Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TS275-60P](https://comparepv.com/panel/tescom-solar-ts275-60p) | 275 | 16.8 | -0.440 | Polycrystalline |


## Summary

JA Solar is one of the world's leading photovoltaic module manufacturers, founded in 2005 in China, with a workforce of over 37,000 employees and an annual production capacity exceeding 100 GW. The company holds Tier 1 bankable status from both S&P Global Commodity Insights and BloombergNEF, and jointly topped Wood Mackenzie's Global Solar Module Manufacturer Ranking for H1 2025. Its portfolio spans 524 panel models with a maximum output of 740 Wp and peak efficiency of 24.4%, giving it one of the broadest and most technically advanced lineups among Chinese manufacturers. Tescom Solar, by contrast, is a Turkish company founded in 1980 that built its reputation primarily in UPS systems and power electronics. It employs between 51 and 200 people, and its solar panel presence in industry databases is limited to a single model rated at 275 Wp with an efficiency of 16.77%. Tescom does not carry Tier 1 certification, and its solar module business appears to serve niche applications rather than the broad commercial or utility market.

JA Solar's technology portfolio is anchored by PERC cells (over 52% of its lineup) with a growing share of TOPCon modules, an average temperature coefficient of -0.32%/°C, and a bifacial panel share exceeding 44% - making it well suited for utility-scale ground-mount projects, commercial and industrial (C&I) rooftop installations, and high-volume residential deployments where long-term bankability and financing eligibility are priorities. Its average warranty term of nearly 28 years and consistent recognition as a PVEL Top Performer (10th time in 2025) further reinforce its position as a low-risk choice for project developers and independent power producers. Tescom Solar's single catalogued module at 275 Wp and 16.77% efficiency sits well below current market benchmarks, with no bifacial capability and an unspecified cell technology, making it suitable primarily for small off-grid or UPS-integrated applications rather than grid-connected solar projects.

For international buyers choosing between the two, the comparison is straightforward: JA Solar is a globally bankable, high-capacity manufacturer with a proven track record across residential, C&I, and utility-scale segments, while Tescom Solar is a specialized power electronics company whose solar module offering is too limited in scope and performance to compete in mainstream PV markets. Buyers requiring project financing, long-term performance warranties, and a broad selection of modern high-efficiency modules should strongly favor JA Solar.

Written by claude-sonnet from the figures above.


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

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