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

# Techwise Solar vs Tongwei

Techwise Solar has the broader catalog (164 vs 122 models). Tongwei leads on peak efficiency at 24.20%. Tongwei leans bifacial (69% of lineup).


## The two companies


| Attribute | Techwise Solar | Tongwei |
| --- | --- | --- |
| Country |  | China |
| Headquarters |  | Chengdu |
| Founded |  | 2013 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | no | yes |
| Listed |  | SSE: 600438 |
| Website |  | [https://en.tongwei.com.cn](https://en.tongwei.com.cn) |


## Catalog & Power


| Measure | Techwise Solar | Tongwei | Margin |
| --- | --- | --- | --- |
| Panel Models | 164 | 122 | +42 |
| Max Power | 720 W | 750 W | +30 W |
| Avg Power | 530 W | 584 W | +53 W |


## Efficiency


| Measure | Techwise Solar | Tongwei | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.80% | 24.20% | +0.40 pp |
| Avg Efficiency | 21.88% | 22.59% | +0.70 pp |


## Reliability & Warranty


| Measure | Techwise Solar | Tongwei | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.317%/°C | -0.284%/°C | +0.033 |
| Bifacial Share | 81 (49%) | 84 (69%) | +19 pp |
| Avg Warranty | 27.3 yrs | 29.5 yrs | +2.2 yr |


## Efficiency distribution

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


| Efficiency band | Techwise Solar | Tongwei |
| --- | --- | --- |
| \<20% | 2 (1.2%) | 2 (1.6%) |
| 20-21% | 25 (15.2%) | 6 (4.9%) |
| 21-22% | 47 (28.7%) | 14 (11.5%) |
| 22-23% | 74 (45.1%) | 50 (41.0%) |
| 23%+ | 15 (9.1%) | 50 (41.0%) |
| Unknown | 1 (0.6%) | 0 |


## Power distribution

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


| Power band | Techwise Solar | Tongwei |
| --- | --- | --- |
| \<400W | 4 (2.4%) | 0 |
| 400-499W | 60 (36.6%) | 41 (33.6%) |
| 500-599W | 55 (33.5%) | 16 (13.1%) |
| 600-699W | 40 (24.4%) | 33 (27.0%) |
| 700W+ | 5 (3.0%) | 32 (26.2%) |


## Cell technology

Dominant cell tech: TOPCon (70%)

Dominant cell tech: TOPCon (47%)


| Technology | Techwise Solar | Tongwei |
| --- | --- | --- |
| TOPCon | 114 (69.5%) | 57 (46.7%) |
| PERC | 46 (28.0%) | 10 (8.2%) |
| Unknown | 4 (2.4%) | 6 (4.9%) |
| N-type | 0 | 44 (36.1%) |
| HJT | 0 | 5 (4.1%) |


## Top panels, Techwise Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TW-720HT-01-720W](https://comparepv.com/panel/techwise-solar-tw-720ht-01-720w) | 720 | 22.5 | -0.300 | Monocrystalline |
| 2 | [TW-720HT-01-715W](https://comparepv.com/panel/techwise-solar-tw-720ht-01-715w) | 715 | 22.4 | -0.300 | Monocrystalline |
| 3 | [TW-720HT-01-710W](https://comparepv.com/panel/techwise-solar-tw-720ht-01-710w) | 710 | 22.2 | -0.300 | Monocrystalline |
| 4 | [TW-720HT-01-705W](https://comparepv.com/panel/techwise-solar-tw-720ht-01-705w) | 705 | 22.1 | -0.300 | Monocrystalline |
| 5 | [TW-720HT-01-700W](https://comparepv.com/panel/techwise-solar-tw-720ht-01-700w) | 700 | 21.9 | -0.300 | Monocrystalline |
| 6 | [TW-670HT](https://comparepv.com/panel/techwise-solar-tw-670ht) | 670 | 21.6 | -0.340 | Monocrystalline |
| 7 | [TW-665HT](https://comparepv.com/panel/techwise-solar-tw-665ht) | 665 | 21.4 | -0.340 | Monocrystalline |
| 8 | [TW-660HT](https://comparepv.com/panel/techwise-solar-tw-660ht) | 660 | 21.2 | -0.340 | Monocrystalline |
| 9 | [TW-655HT](https://comparepv.com/panel/techwise-solar-tw-655ht) | 655 | 21.1 | -0.340 | Monocrystalline |
| 10 | [TW-650HT](https://comparepv.com/panel/techwise-solar-tw-650ht) | 650 | 20.9 | -0.340 | 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 |


## Summary

Techwise Solar Technology Co., Ltd. is a Chinese solar module manufacturer based in Nantong, Jiangsu Province, with an annual production capacity of approximately 1 GW. The company covers the full chain from R&D through to sales and maintenance, and holds certifications including TUV, CE, ISO, and CGC. Crucially, Techwise Solar does not appear on BloombergNEF Tier 1 bankability lists; it operates primarily as an ODM/OEM contract supplier to larger branded manufacturers, meaning its modules frequently reach the market under third-party labels rather than its own name. Tongwei Solar - the module arm of Tongwei Group, a Chinese conglomerate founded in 1983 that pivoted into solar cells around 2009 - operates at an entirely different scale. Tongwei was awarded BloombergNEF Tier 1 Module Manufacturer status in Q1 2025 and is widely reported to have an annual nameplate module capacity in the region of 85 GW, placing it firmly among the world's largest producers alongside Jinko Solar, LONGi, and JA Solar. On institutional footprint and financial bankability, Tongwei is the clear frontrunner.

Techwise Solar's confirmed product families span monocrystalline PERC, N-type TOPCon, and bifacial dual-glass modules suitable for residential rooftop, commercial rooftop, and ground-mounted utility applications. Independent efficiency data and third-party scorecard results are not publicly available for the brand. Tongwei Solar, by contrast, has a well-documented and independently tested portfolio centered on N-type TOPCon technology, with HJT modules also in active development. Its lineup addresses residential buyers with modules around 435 W, commercial and industrial projects in the 585-590 W range, and large utility-scale arrays with modules exceeding 635 W - reaching up to 770 W in its latest TNC3.0 series unveiled in early 2025. Selected TW Solar models have achieved Top Performer recognition in PVEL scorecards, and the brand offers a 30-year linear performance warranty.

For most international buyers - project developers, EPCs, or commercial installers seeking lender-acceptable equipment - Tongwei Solar is the lower-risk, better-evidenced choice. Its Tier 1 status, PVEL validation, and massive manufacturing base support easier project financing and insurance underwriting. Techwise Solar serves a narrower niche: buyers seeking contract manufacturing or a cost-competitive ODM partner. Without Tier 1 recognition and with limited independent performance data, it carries higher bankability risk in financed projects.

Written by claude-sonnet from the figures above.


## Other comparisons

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


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Source: https://comparepv.com/techwise-solar-vs-tongwei

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