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

# Just Solar vs Trina Solar

Trina Solar has the broader catalog (340 vs 42 models). Trina Solar leads on peak efficiency at 24.80%. Trina Solar leans bifacial (43% of lineup).


## The two companies


| Attribute | Just Solar | Trina Solar |
| --- | --- | --- |
| Country |  | China |
| Headquarters |  | Changzhou |
| Founded |  | 1997 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | no | yes |
| Listed |  |  |
| Website |  | [https://www.trinasolar.com](https://www.trinasolar.com) |


## Catalog & Power


| Measure | Just Solar | Trina Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 42 | 340 | +298 |
| Max Power | 740 W | 760 W | +20 W |
| Avg Power | 491 W | 520 W | +29 W |


## Efficiency


| Measure | Just Solar | Trina Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.82% | 24.80% | +0.98 pp |
| Avg Efficiency | 22.08% | 21.71% | +0.37 pp |


## Reliability & Warranty


| Measure | Just Solar | Trina Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.306%/°C | -0.302%/°C | +0.004 |
| Bifacial Share | 7 (17%) | 145 (43%) | +26 pp |
| Avg Warranty | 28.5 yrs | 28.2 yrs | +0.2 yr |


## Efficiency distribution

Just Solar skews to higher efficiency: 33% of lineup is 23%+


| Efficiency band | Just Solar | Trina Solar |
| --- | --- | --- |
| 20-21% | 8 (19.0%) | 57 (16.8%) |
| 21-22% | 14 (33.3%) | 83 (24.4%) |
| 22-23% | 6 (14.3%) | 102 (30.0%) |
| 23%+ | 14 (33.3%) | 76 (22.4%) |
| \<20% | 0 | 22 (6.5%) |


## Power distribution

Trina Solar offers more 600W+ panels (34% of lineup)


| Power band | Just Solar | Trina Solar |
| --- | --- | --- |
| \<400W | 7 (16.7%) | 28 (8.2%) |
| 400-499W | 21 (50.0%) | 142 (41.8%) |
| 500-599W | 7 (16.7%) | 54 (15.9%) |
| 700W+ | 7 (16.7%) | 44 (12.9%) |
| 600-699W | 0 | 72 (21.2%) |


## Cell technology

Dominant cell tech: **TOPCon** (52%)

Dominant cell tech: **TOPCon** (73%)


| Technology | Just Solar | Trina Solar |
| --- | --- | --- |
| TOPCon | 22 (52.4%) | 248 (72.9%) |
| Back Contact | 13 (31.0%) | 0 |
| HJT | 7 (16.7%) | 0 |
| PERC | 0 | 75 (22.1%) |
| Unknown | 0 | 11 (3.2%) |
| N-type | 0 | 6 (1.8%) |


## Top panels, Just Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 740 | 23.8 | -0.260 | Monocrystalline |
| 2 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 735 | 23.7 | -0.260 | Monocrystalline |
| 3 | [JST-FCMH-730W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-730w-hd) | 730 | 23.5 | -0.260 | Monocrystalline |
| 4 | [JST-FCMH-725W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-725w-hd) | 725 | 23.3 | -0.260 | Monocrystalline |
| 5 | [JST-FCMH-720W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-720w-hd) | 720 | 23.2 | -0.260 | Monocrystalline |
| 6 | [JST-FCMH-715W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-715w-hd) | 715 | 23.0 | -0.260 | Monocrystalline |
| 7 | [JST-FCMH-710W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-710w-hd) | 710 | 22.9 | -0.260 | Monocrystalline |
| 8 | [JST-EBMH-560W-D](https://comparepv.com/panel/just-solar-jst-ebmh-560w-d) | 560 | 21.9 | -0.360 | Monocrystalline |
| 9 | [JST-EBMH-555W-D](https://comparepv.com/panel/just-solar-jst-ebmh-555w-d) | 555 | 21.7 | -0.360 | Monocrystalline |
| 10 | [JST-EBMH-550W-D](https://comparepv.com/panel/just-solar-jst-ebmh-550w-d) | 550 | 21.5 | -0.360 | Monocrystalline |


## Top panels, Trina Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 | 24.5 | -0.260 | Monocrystalline |
| 2 | [TSM-NEG21C.20Q-755](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-755) | 755 | 24.3 | -0.260 | Monocrystalline |
| 3 | [TSM-NEG21C.20Q-750](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-750) | 750 | 24.1 | -0.260 | Monocrystalline |
| 4 | [TSM-NEG21C.20Q-745](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-745) | 745 | 24.0 | -0.260 | Monocrystalline |
| 5 | [TSM-NEG21C.20-740](https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg21c-20-740) | 740 | 23.8 | -0.290 | Monocrystalline |
| 6 | [TSM-NEG21C.20 740](https://comparepv.com/panel/trina-solar-tsm-neg21c-20-740) | 740 | 23.8 | -0.290 | Monocrystalline |
| 7 | [TSM-NEG21C.20Q-740](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-740) | 740 | 23.8 | -0.260 | Monocrystalline |
| 8 | [TSM-NEG21C.20-735](https://comparepv.com/panel/trina-solar-co-ltd-tsm-neg21c-20-735) | 735 | 23.7 | -0.290 | Monocrystalline |
| 9 | [TSM-NEG21C.20 735](https://comparepv.com/panel/trina-solar-tsm-neg21c-20-735) | 735 | 23.7 | -0.290 | Monocrystalline |
| 10 | [TSM-NEG21C.20Q-735](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-735) | 735 | 23.7 | -0.260 | Monocrystalline |


## Summary

Just Solar Group Limited is a Chinese solar module manufacturer listed in global component directories, most notably ENF Solar. The company operates at a considerably smaller scale than China's leading exporters and has no confirmed placement on the BloombergNEF Tier 1 bankability list, which is the benchmark institutional buyers rely on when assessing long-term supplier risk. Publicly available data on its annual production capacity is limited, making a precise market-scale assessment difficult. Trina Solar, founded in 1997 and headquartered in Changzhou, China, sits at the opposite end of the spectrum. It holds a confirmed BloombergNEF Tier 1 status, has accumulated over 205 GW in cumulative global shipments, and operates across more than 100 countries. By any measure of institutional footprint, Trina Solar substantially outweighs Just Solar.

Just Solar's product catalog, as documented on ENF Solar, spans modules for residential through utility-scale applications, including N-type TOPCon and IBC cell formats with outputs ranging from roughly 390 W to over 730 W. The adoption of modern cell architectures is a positive signal, but independent performance testing data and verified field results are not widely available through credible third-party sources. Trina Solar's Vertex series, built on N-type TOPCon cells with 210 mm wafers, covers the full project spectrum - residential modules in the 495 W class, commercial and industrial formats around 670 W, and configurations exceeding 740 W for utility-scale ground-mount projects. In 2025, Trina introduced its i-TOPCon Ultra generation under the Vertex N brand, underscoring sustained investment in cell technology advancement.

For most international buyers - whether residential homeowners, commercial energy managers, or project developers - Trina Solar is the lower-risk and better-substantiated choice. Its Tier 1 bankability, decades-long track record, and the availability of independent performance scorecards from bodies such as PVEL make it straightforward to specify on projects where lender and insurer approval matters. Just Solar may appeal to cost-sensitive buyers with the capability to independently audit panel quality, but it cannot currently match the depth of third-party validation that Trina Solar brings to the table.

Written by claude-sonnet from the figures above.


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- [Just Solar vs A.B. Energy](https://comparepv.com/just-solar-vs-a-b-energy)
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- [AIKO vs Trina Solar](https://comparepv.com/aiko-vs-trina-solar)
- [Just Solar vs AKCOME](https://comparepv.com/just-solar-vs-akcome)
- [ARTsolar vs Trina Solar](https://comparepv.com/artsolar-vs-trina-solar)


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Source: https://comparepv.com/just-solar-vs-trina-solar

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