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

# Trina Solar vs YS Solar

Trina Solar has the broader catalog (340 vs 5 models). Trina Solar leads on peak efficiency at 24.80%. Trina Solar leans bifacial (43% of lineup).


## The two companies


| Attribute | Trina Solar | YS Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Changzhou | Meizhou City, Guangdong Province |
| Founded | 1997 | 2009 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | yes |  |
| Listed |  |  |
| Website | [https://www.trinasolar.com](https://www.trinasolar.com) | [http://www.ys-solar.com/](http://www.ys-solar.com/) |

Guangdong Yaosheng Solar Technology Co., Ltd. (YS SOLAR) is a national high-tech enterprise specializing in the R&D, production, sales, and service of photovoltaic and solar thermal products. The company is a wholly-owned subsidiary of Guangdong Yaosheng-Yifang Group. YS Solar has become a leading enterprise in the...


## Catalog & Power


| Measure | Trina Solar | YS Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 340 | 5 | +335 |
| Max Power | 760 W | 350 W | +410 W |
| Avg Power | 520 W | 340 W | +180 W |


## Efficiency


| Measure | Trina Solar | YS Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 21.00% | +3.80 pp |
| Avg Efficiency | 21.71% | 20.40% | +1.31 pp |


## Reliability & Warranty


| Measure | Trina Solar | YS Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.302%/°C | -0.350%/°C | +0.048 |
| Bifacial Share | 145 (43%) | 0 (0%) | +43 pp |
| Avg Warranty | 28.2 yrs | - |  |


## Efficiency distribution

Trina Solar skews to higher efficiency: 22% of lineup is 23%+


| Efficiency band | Trina Solar | YS Solar |
| --- | --- | --- |
| \<20% | 22 (6.5%) | 1 (20.0%) |
| 20-21% | 57 (16.8%) | 3 (60.0%) |
| 21-22% | 83 (24.4%) | 1 (20.0%) |
| 22-23% | 102 (30.0%) | 0 |
| 23%+ | 76 (22.4%) | 0 |


## Power distribution

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


| Power band | Trina Solar | YS Solar |
| --- | --- | --- |
| \<400W | 28 (8.2%) | 5 (100.0%) |
| 400-499W | 142 (41.8%) | 0 |
| 500-599W | 54 (15.9%) | 0 |
| 600-699W | 72 (21.2%) | 0 |
| 700W+ | 44 (12.9%) | 0 |


## Cell technology

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


| Technology | Trina Solar | YS Solar |
| --- | --- | --- |
| TOPCon | 248 (72.9%) | 0 |
| PERC | 75 (22.1%) | 0 |
| Unknown | 11 (3.2%) | 5 (100.0%) |
| N-type | 6 (1.8%) | 0 |


## 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 |


## Top panels, YS Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [YS350SM-90](https://comparepv.com/panel/ys-solar-ys350sm-90) | 350 | 21.0 | -0.350 | Monocrystalline |
| 2 | [YS345SM-90](https://comparepv.com/panel/ys-solar-ys345sm-90) | 345 | 20.7 | -0.350 | Monocrystalline |
| 3 | [YS340SM-90](https://comparepv.com/panel/ys-solar-ys340sm-90) | 340 | 20.4 | -0.350 | Monocrystalline |
| 4 | [YS335SM-90](https://comparepv.com/panel/ys-solar-ys335sm-90) | 335 | 20.1 | -0.350 | Monocrystalline |
| 5 | [YS330SM-90](https://comparepv.com/panel/ys-solar-ys330sm-90) | 330 | 19.8 | -0.350 | Monocrystalline |


## Summary

Trina Solar is a Chinese photovoltaic manufacturer headquartered in Changzhou, Jiangsu Province, founded in 1997. The company ranks among the top global module suppliers by shipment volume, having delivered more than 292 GW of solar panels to customers worldwide as of mid-2025. Its annual manufacturing capacity exceeds 100 GW. Critically for project finance purposes, Trina Solar has achieved BNEF Tier 1 bankability status eight consecutive times, including a 100% unanimous rating from all surveyed lenders and investors in 2025. YS Solar - formally Guangdong Yaosheng Solar Technology Co., Ltd. - is a much smaller regional manufacturer based in Meizhou, Guangdong Province, established in 2009 with a workforce of approximately 1,200 people. No BNEF Tier 1 listing or equivalent institutional bankability recognition was found for YS Solar through available industry sources. On the metric of institutional footprint and financeable track record, Trina Solar leads by a wide margin.

Trina Solar's product lineup covers all major deployment segments. The Vertex S+ series uses n-type TOPCon cell technology and targets residential rooftop installations, while the Vertex N family serves commercial and industrial rooftops. For utility-scale ground-mount projects, Trina offers large-format i-TOPCon Ultra modules rated at up to 760 W with efficiencies confirmed at 24.5% by pv-magazine, with mass production beginning in 2025. YS Solar produces monocrystalline and polycrystalline modules in a power range of roughly 160 to 550 W, with a PERC line topping out around 395 W. The YS Solar catalog reflects an older technology generation and is oriented toward smaller-scale or cost-sensitive installations rather than high-performance commercial or utility projects.

For most international buyers - whether a rooftop installer or a project developer seeking debt financing - Trina Solar is the default-safe choice. Its bankability record de-risks lender negotiations, its TOPCon efficiency reduces balance-of-system costs, and its global service network limits warranty exposure. YS Solar may be a viable low-cost option for off-grid or small commercial applications where financier approval is not required, but the two brands are not interchangeable in any financed or performance-sensitive context.

Written by claude-sonnet from the figures above.


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

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