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

# Epax Solar vs Trina Solar

Trina Solar has the broader catalog (340 vs 0 models). Trina Solar leans bifacial (43% of lineup).


## The two companies


| Attribute | Epax Solar | Trina Solar |
| --- | --- | --- |
| Country | Germany | China |
| Headquarters | Deggendorf | Changzhou |
| Founded | 2019 | 1997 |
| Employees | 1-10 |  |
| Annual capacity |  |  |
| Tier 1 |  | yes |
| Listed |  |  |
| Website | [https://www.epax-solar.de](https://www.epax-solar.de) | [https://www.trinasolar.com](https://www.trinasolar.com) |

Epax Solar is an owner-managed wholesaler for photovoltaic components. They reliably supply solar installers across Germany and Europe with a wide product portfolio, thanks to direct manufacturer partnerships and efficient logistics. Epax Solar is committed to clean energy generation and sustainability.


## Catalog & Power


| Measure | Epax Solar | Trina Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 0 | 340 | +340 |
| Max Power | 0 W | 760 W | +760 W |
| Avg Power | 0 W | 520 W | +520 W |


## Efficiency


| Measure | Epax Solar | Trina Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | - | 24.80% |  |
| Avg Efficiency | - | 21.71% |  |


## Reliability & Warranty


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


## Efficiency distribution

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


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


## Power distribution

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


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


## Cell technology

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


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


## 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

Epax Solar GmbH is a company headquartered in Deggendorf, Germany, operating as a B2B wholesale distributor of photovoltaic components across the European market - it is not a panel manufacturer. The company supplies installers, solar engineers, and project developers throughout Germany and Europe with modules, inverters, battery storage systems, and PV accessories sourced directly from various manufacturers. Because of this business model, Epax Solar holds no own-brand manufacturing capacity measured in GW, does not appear on BloombergNEF Tier 1 lists (which assess module producers exclusively), and does not sell panels under a proprietary label. Trina Solar, by contrast, is one of the largest Chinese module manufacturers, founded in 1997 and headquartered in Changzhou, with module production capacity forecast to reach up to 95 GW - placing it among the top global producers by volume. Trina has earned BloombergNEF Tier 1 status for the eighth consecutive time, achieving a 100% bankability rating from all respondents in 2025, and has been named a PVEL Top Performer for 11 consecutive years.

Epax Solar's distributor model means it can offer products from multiple manufacturers within a single order, giving installers flexibility to select modules suited to a specific project regardless of brand. This is a practical advantage for small and mid-sized installation firms that prioritize procurement efficiency over brand loyalty. Trina Solar's own product lineup is anchored by the Vertex N series, built on N-type TOPCon cell technology and delivering module outputs above 700 W with efficiencies reaching up to 24.5% in the latest variants. The range spans residential rooftop applications through the Vertex S and S+ lines, commercial and industrial installations, and utility-scale ground-mount projects - making Trina a versatile choice for buyers across project sizes. Flagship models carry a 30-year performance warranty.

A direct comparison between these two entities is structurally difficult because they occupy different positions in the supply chain. For an international buyer choosing a module brand, Trina Solar offers a well-documented institutional track record, broad global availability, and proven technology. Epax Solar serves a different purpose - as a European distributor able to bundle diverse PV components for installers who value logistical convenience over single-brand procurement. The two are not interchangeable and cater to different buyer needs.

Written by claude-sonnet from the figures above.


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