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

# Suntech vs Trina Solar

Trina Solar has the broader catalog (340 vs 255 models).


## The two companies


| Attribute | Suntech | Trina Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Wuxi | Changzhou |
| Founded | 2001 | 1997 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | yes | yes |
| Listed |  |  |
| Website | [https://www.suntech-power.com](https://www.suntech-power.com) | [https://www.trinasolar.com](https://www.trinasolar.com) |


## Catalog & Power


| Measure | Suntech | Trina Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 255 | 340 | +85 |
| Max Power | 735 W | 760 W | +25 W |
| Avg Power | 505 W | 520 W | +15 W |


## Efficiency


| Measure | Suntech | Trina Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 24.80% |  |
| Avg Efficiency | 21.76% | 21.71% | +0.04 pp |


## Reliability & Warranty


| Measure | Suntech | Trina Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.316%/°C | -0.302%/°C | +0.014 |
| Bifacial Share | 114 (45%) | 145 (43%) | +2 pp |
| Avg Warranty | 28.4 yrs | 28.2 yrs | +0.2 yr |


## Efficiency distribution

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


| Efficiency band | Suntech | Trina Solar |
| --- | --- | --- |
| \<20% | 11 (4.3%) | 22 (6.5%) |
| 20-21% | 61 (23.9%) | 57 (16.8%) |
| 21-22% | 64 (25.1%) | 83 (24.4%) |
| 22-23% | 70 (27.5%) | 102 (30.0%) |
| 23%+ | 49 (19.2%) | 76 (22.4%) |


## Power distribution

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


| Power band | Suntech | Trina Solar |
| --- | --- | --- |
| \<400W | 32 (12.5%) | 28 (8.2%) |
| 400-499W | 104 (40.8%) | 142 (41.8%) |
| 500-599W | 69 (27.1%) | 54 (15.9%) |
| 600-699W | 42 (16.5%) | 72 (21.2%) |
| 700W+ | 8 (3.1%) | 44 (12.9%) |


## Cell technology

Dominant cell tech: **TOPCon** (71%)

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


| Technology | Suntech | Trina Solar |
| --- | --- | --- |
| TOPCon | 180 (70.6%) | 248 (72.9%) |
| Unknown | 65 (25.5%) | 11 (3.2%) |
| PERC | 5 (2.0%) | 75 (22.1%) |
| N-type | 5 (2.0%) | 6 (1.8%) |


## Top panels, Suntech


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [STP735S-D66-Nsh+](https://comparepv.com/panel/suntech-stp735s-d66-nsh) | 735 | 23.7 | -0.280 | Monocrystalline |
| 2 | [STP730S-D66-Nsh+](https://comparepv.com/panel/suntech-stp730s-d66-nsh) | 730 | 23.5 | -0.280 | Monocrystalline |
| 3 | [STP725S-D66-Nsh+](https://comparepv.com/panel/suntech-stp725s-d66-nsh) | 725 | 23.3 | -0.280 | Monocrystalline |
| 4 | [STP720S-D66-Nsh+](https://comparepv.com/panel/suntech-stp720s-d66-nsh) | 720 | 23.2 | -0.280 | Monocrystalline |
| 5 | [STP715S-D66-Nsh+](https://comparepv.com/panel/suntech-stp715s-d66-nsh) | 715 | 23.0 | -0.280 | Monocrystalline |
| 6 | [STP710S-D66-Nsh+](https://comparepv.com/panel/suntech-stp710s-d66-nsh) | 710 | 22.9 | -0.290 | Monocrystalline |
| 7 | [STP705S-D66-Nsh+](https://comparepv.com/panel/suntech-stp705s-d66-nsh) | 705 | 22.7 | -0.290 | Monocrystalline |
| 8 | [STP700S-D66-Nsh+](https://comparepv.com/panel/suntech-stp700s-d66-nsh) | 700 | 22.5 | -0.290 | Monocrystalline |
| 9 | [STP675S-D66/Wmh](https://comparepv.com/panel/suntech-stp675s-d66-wmh) | 675 | 21.7 | -0.340 | Monocrystalline |
| 10 | [STP670S-D66/Wmh](https://comparepv.com/panel/suntech-stp670s-d66-wmh) | 670 | 21.6 | -0.340 | 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

Suntech is a Chinese manufacturer headquartered in Changzhou, Jiangsu province, founded in 2001 as one of the earliest large-scale Chinese module producers. The company holds Tier 1 bankability status with BloombergNEF and has reported production capacity of around 10 GW per year, with a second facility under development in Fengyang. Trina Solar, also based in Changzhou and founded in 1997, has achieved a 100% bankability rating in BloombergNEF's assessment on eight separate occasions. With cumulative global shipments surpassing 292 GW by mid-2025 and 11 consecutive years as a PVEL Top Performer, Trina Solar carries the stronger institutional footprint of the two.

Suntech's current product focus is the Ultra V Pro series, a TOPCon bifacial lineup rated at up to 22.4% efficiency and 605 W, well suited to commercial rooftop and utility-scale ground-mount installations. The company has largely transitioned away from PERC, and its price range of roughly $0.65-0.85 per watt before installation makes it one of the more cost-accessible Tier 1 options for developers and EPC contractors working under tight budgets. Trina Solar addresses all three main market segments through its Vertex N platform: the Vertex S+ targets residential rooftops with an all-black aesthetic and around 22.3% efficiency at 445 W; the standard Vertex N covers commercial and industrial applications at up to 23% efficiency and 620 W; and the large-format NEG21C.20 reaches 725 W at 23.3% for utility-scale fields. A TOPCon 2.0 generation launched in late 2025 pushes module efficiency to 24.5% and output to 760 W, backed by 30-year performance warranties on flagship lines.

For a typical international buyer - whether procuring for a residential rooftop program or a grid-scale tender requiring bankable equipment - Trina Solar offers a marginally stronger track record, broader product coverage, and more competitive warranty terms on its premium portfolio. Suntech is a credible, bankable alternative, particularly where cost per watt is the deciding factor. At the mid-market level the two brands are broadly interchangeable, and the final choice usually comes down to local distributor support, available stock, and project-specific pricing rather than any decisive technical gap.

Written by claude-sonnet from the figures above.


## Other comparisons

- [Suntech vs A.B. Energy](https://comparepv.com/suntech-vs-a-b-energy)
- [AE Solar vs Trina Solar](https://comparepv.com/ae-solar-vs-trina-solar)
- [Suntech vs AEET](https://comparepv.com/suntech-vs-aeet)
- [AIKO vs Trina Solar](https://comparepv.com/aiko-vs-trina-solar)
- [Suntech vs AKCOME](https://comparepv.com/suntech-vs-akcome)
- [ARTsolar vs Trina Solar](https://comparepv.com/artsolar-vs-trina-solar)


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

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