---
title: "Silfab vs Tongwei - Brand Comparison | ComparePV"
description: "Compare Silfab vs Tongwei solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/silfab-vs-tongwei"
image: "https://comparepv.com/og/compare/manufacturers/silfab/tongwei.png"
---

# Silfab vs Tongwei

Tongwei has the broader catalog (122 vs 47 models). Tongwei leads on peak efficiency at 24.20%. Tongwei leans bifacial (69% of lineup).


## The two companies


| Attribute | Silfab | Tongwei |
| --- | --- | --- |
| Country | Canada | China |
| Headquarters | Mississauga | Chengdu |
| Founded | 2010 | 2013 |
| Employees | 800+ |  |
| Annual capacity | 1.6 GW/year |  |
| Tier 1 | yes | yes |
| Listed |  | SSE: 600438 |
| Website | [https://www.silfabsolar.com](https://www.silfabsolar.com) | [https://en.tongwei.com.cn](https://en.tongwei.com.cn) |

Silfab Solar is a North American leader in the design, development, and manufacture of high-efficiency, premium-quality solar cells and modules. Leveraging over 40 years of solar experience, they operate fully automated facilities in Washington, South Carolina, and Ontario, Canada. Their products are designed and...


## Catalog & Power


| Measure | Silfab | Tongwei | Margin |
| --- | --- | --- | --- |
| Panel Models | 47 | 122 | +75 |
| Max Power | 640 W | 750 W | +110 W |
| Avg Power | 429 W | 584 W | +155 W |


## Efficiency


| Measure | Silfab | Tongwei | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.92% | 24.20% | +1.28 pp |
| Avg Efficiency | 20.56% | 22.59% | +2.03 pp |


## Reliability & Warranty


| Measure | Silfab | Tongwei | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.341%/°C | -0.284%/°C | +0.057 |
| Bifacial Share | 14 (30%) | 84 (69%) | +39 pp |
| Avg Warranty | 30.0 yrs | 29.5 yrs | +0.5 yr |


## Efficiency distribution

Tongwei skews to higher efficiency: 41% of lineup is 23%+


| Efficiency band | Silfab | Tongwei |
| --- | --- | --- |
| \<20% | 19 (40.4%) | 2 (1.6%) |
| 20-21% | 5 (10.6%) | 6 (4.9%) |
| 21-22% | 10 (21.3%) | 14 (11.5%) |
| 22-23% | 13 (27.7%) | 50 (41.0%) |
| 23%+ | 0 | 50 (41.0%) |


## Power distribution

Tongwei offers more 600W+ panels (53% of lineup)


| Power band | Silfab | Tongwei |
| --- | --- | --- |
| \<400W | 22 (46.8%) | 0 |
| 400-499W | 10 (21.3%) | 41 (33.6%) |
| 500-599W | 12 (25.5%) | 16 (13.1%) |
| 600-699W | 3 (6.4%) | 33 (27.0%) |
| 700W+ | 0 | 32 (26.2%) |


## Cell technology

Dominant cell tech: PERC (45%)

Dominant cell tech: TOPCon (47%)


| Technology | Silfab | Tongwei |
| --- | --- | --- |
| PERC | 21 (44.7%) | 10 (8.2%) |
| N-type | 19 (40.4%) | 44 (36.1%) |
| Unknown | 6 (12.8%) | 6 (4.9%) |
| TOPCon | 1 (2.1%) | 57 (46.7%) |
| HJT | 0 | 5 (4.1%) |


## Top panels, Silfab


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SIL-640 XL](https://comparepv.com/panel/silfab-sil-640-xl) | 640 | 22.9 | -0.290 | Monocrystalline |
| 2 | [SIL-630 XL](https://comparepv.com/panel/silfab-sil-630-xl) | 630 | 22.6 | -0.290 | Monocrystalline |
| 3 | [SIL-620 XL](https://comparepv.com/panel/silfab-sil-620-xl) | 620 | 22.2 | -0.290 | Monocrystalline |
| 4 | [SIL-590 XM+](https://comparepv.com/panel/silfab-sil-590-xm) | 590 | 22.8 | -0.290 | Monocrystalline |
| 5 | [SIL-580-XM+-BIFACIAL](https://comparepv.com/panel/silfab-sil-580-xm-bifacial) | 580 | 22.4 | -0.290 | Monocrystalline |
| 6 | [SIL-570 XM+ BIFACIAL](https://comparepv.com/panel/silfab-sil-570-xm-bifacial) | 570 | 22.1 | -0.290 | Monocrystalline |
| 7 | [SIL-570 XM+](https://comparepv.com/panel/silfab-sil-570-xm) | 570 | 22.1 | -0.290 | Monocrystalline |
| 8 | [SIL-540-XM-BIFACIAL](https://comparepv.com/panel/silfab-sil-540-xm-bifacial) | 540 | 22.7 | -0.290 | Monocrystalline |
| 9 | [SIL-530 QM](https://comparepv.com/panel/silfab-sil-530-qm) | 530 | 22.3 | -0.290 | Monocrystalline |
| 10 | [SIL-530 XM](https://comparepv.com/panel/silfab-sil-530-xm) | 530 | 22.3 | -0.290 | Monocrystalline |


## Top panels, Tongwei


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TWMNF-66HD750](https://comparepv.com/panel/tongwei-solar-twmnf-66hd750) | 750 | 24.1 | -0.280 | Monocrystalline |
| 2 | [TWMNF-66HD745](https://comparepv.com/panel/tongwei-solar-twmnf-66hd745) | 745 | 24.0 | -0.280 | Monocrystalline |
| 3 | [TWMNF-66HD740](https://comparepv.com/panel/tongwei-solar-twmnf-66hd740) | 740 | 23.8 | -0.280 | Monocrystalline |
| 4 | [TWMHF-66HD740X](https://comparepv.com/panel/tw-solar-twmhf-66hd740x) | 740 | 23.8 | -0.240 | Monocrystalline |
| 5 | [THC G12-66 Bifacial](https://comparepv.com/panel/tongwei-thc-g12-66-bifacial) | 740 | 23.8 | -0.280 | Monocrystalline |
| 6 | [TWMNF-66HD735](https://comparepv.com/panel/tongwei-solar-twmnf-66hd735) | 735 | 23.7 | -0.280 | Monocrystalline |
| 7 | [TWMHF-66HD735X](https://comparepv.com/panel/tw-solar-twmhf-66hd735x) | 735 | 23.7 | -0.240 | Monocrystalline |
| 8 | [TWMHF-66HD730X](https://comparepv.com/panel/tw-solar-twmhf-66hd730x) | 730 | 23.5 | -0.240 | Monocrystalline |
| 9 | [TWMNF-66HD730](https://comparepv.com/panel/tongwei-solar-twmnf-66hd730) | 730 | 23.5 | -0.280 | Monocrystalline |
| 10 | [TWMNF-66HD725](https://comparepv.com/panel/tongwei-solar-twmnf-66hd725) | 725 | 23.3 | -0.280 | Monocrystalline |


## Other comparisons

- [Silfab vs A.B. Energy](https://comparepv.com/silfab-vs-a-b-energy)
- [AE Solar vs Tongwei](https://comparepv.com/ae-solar-vs-tongwei)
- [Silfab vs AEET](https://comparepv.com/silfab-vs-aeet)
- [AIKO vs Tongwei](https://comparepv.com/aiko-vs-tongwei)
- [Silfab vs AKCOME](https://comparepv.com/silfab-vs-akcome)
- [ARTsolar vs Tongwei](https://comparepv.com/artsolar-vs-tongwei)


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Source: https://comparepv.com/silfab-vs-tongwei

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