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

# Solar N Plus vs Suntech

Suntech has the broader catalog (255 vs 149 models). Suntech leads on peak efficiency at 24.80%. Solar N Plus leans bifacial (74% of lineup).


## The two companies


| Attribute | Solar N Plus | Suntech |
| --- | --- | --- |
| Country |  | China |
| Headquarters |  | Wuxi |
| Founded |  | 2001 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | no | yes |
| Listed |  |  |
| Website |  | [https://www.suntech-power.com](https://www.suntech-power.com) |


## Catalog & Power


| Measure | Solar N Plus | Suntech | Margin |
| --- | --- | --- | --- |
| Panel Models | 149 | 255 | +106 |
| Max Power | 720 W | 735 W | +15 W |
| Avg Power | 506 W | 505 W | +1 W |


## Efficiency


| Measure | Solar N Plus | Suntech | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.30% | 24.80% | +1.50 pp |
| Avg Efficiency | 21.96% | 21.76% | +0.20 pp |


## Reliability & Warranty


| Measure | Solar N Plus | Suntech | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.316%/°C | -0.316%/°C | +0.000 |
| Bifacial Share | 111 (74%) | 114 (45%) | +30 pp |
| Avg Warranty | 29.7 yrs | 28.4 yrs | +1.3 yr |


## Efficiency distribution

Suntech skews to higher efficiency: 19% of lineup is 23%+


| Efficiency band | Solar N Plus | Suntech |
| --- | --- | --- |
| 20-21% | 21 (14.1%) | 61 (23.9%) |
| 21-22% | 42 (28.2%) | 64 (25.1%) |
| 22-23% | 70 (47.0%) | 70 (27.5%) |
| 23%+ | 16 (10.7%) | 49 (19.2%) |
| \<20% | 0 | 11 (4.3%) |


## Power distribution

Suntech offers more 600W+ panels (20% of lineup)


| Power band | Solar N Plus | Suntech |
| --- | --- | --- |
| \<400W | 7 (4.7%) | 32 (12.5%) |
| 400-499W | 77 (51.7%) | 104 (40.8%) |
| 500-599W | 36 (24.2%) | 69 (27.1%) |
| 600-699W | 19 (12.8%) | 42 (16.5%) |
| 700W+ | 10 (6.7%) | 8 (3.1%) |


## Cell technology

Dominant cell tech: **TOPCon** (56%)

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


| Technology | Solar N Plus | Suntech |
| --- | --- | --- |
| TOPCon | 83 (55.7%) | 180 (70.6%) |
| PERC | 35 (23.5%) | 5 (2.0%) |
| N-type | 26 (17.4%) | 5 (2.0%) |
| Unknown | 5 (3.4%) | 65 (25.5%) |


## Top panels, Solar N Plus


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SP-N18/132HG-720W](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-720w) | 720 | 23.2 | -0.300 | Monocrystalline |
| 2 | [SP-N18/132HG 720](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-720) | 720 | 23.2 | -0.300 | Monocrystalline |
| 3 | [SP-N18/132HG-715W](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-715w) | 715 | 23.0 | -0.300 | Monocrystalline |
| 4 | [SP-N18/132HG 715](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-715) | 715 | 23.0 | -0.300 | Monocrystalline |
| 5 | [SP-N18/132HG-710W](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-710w) | 710 | 22.9 | -0.300 | Monocrystalline |
| 6 | [SP-N18/132HG 710](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-710) | 710 | 22.9 | -0.300 | Monocrystalline |
| 7 | [SP-N18/132HG-705W](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-705w) | 705 | 22.7 | -0.300 | Monocrystalline |
| 8 | [SP-N18/132HG 705](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-705) | 705 | 22.7 | -0.300 | Monocrystalline |
| 9 | [SP-N18/132HG-700W](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-700w) | 700 | 22.5 | -0.300 | Monocrystalline |
| 10 | [SP-N18/132HG 700](https://comparepv.com/panel/solar-n-plus-sp-n18-132hg-700) | 700 | 22.5 | -0.300 | Monocrystalline |


## 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 |


## Summary

Suntech is one of the pioneers of the Chinese solar industry, founded in 2001 by Shi Zhengrong and at its peak the world's largest PV module shipper with annualized production capacity around 2.4 GW, before a 2013 bankruptcy and subsequent restructuring under Shunfeng Photovoltaic ownership. Despite that turbulent history, Suntech has repeatedly appeared on BloombergNEF's Tier 1 bankability lists and is still regarded as a bankable, internationally recognized brand today. Solar N Plus, by contrast, is a newer Chinese manufacturer headquartered in Chuzhou that has built its identity around self-developed N-type TOPCon cells and modules, and it recently secured a notable 500 MW export supply agreement in December 2024, but it lacks the multi-decade track record and established BNEF bankability history that Suntech carries, giving Suntech the clearer institutional edge.

On the product side, both companies center their current lineups on N-type TOPCon technology, prized for higher conversion efficiency, a lower temperature coefficient and improved resistance to light- and potential-induced degradation. Suntech's catalog is broader, spanning mono-PERC and bifacial modules alongside TOPCon, and serves residential rooftop, commercial and industrial (C&I), and utility-scale ground-mount projects worldwide. Solar N Plus appears more narrowly focused on bulk export supply of N-type products, positioning it as a competitively priced option for large procurement deals rather than a full-spectrum brand with a long retail and warranty-servicing history.

For a typical international buyer prioritizing financing ease, warranty confidence and a longer-proven supply chain, Suntech is the safer default given its Tier 1 status and established bankability record, even accounting for its past financial troubles. Solar N Plus is worth considering where competitively priced, modern N-type technology is the priority and the buyer is comfortable with a shorter market track record; the two brands are not simply interchangeable, since their institutional depth and product breadth differ meaningfully.

Written by claude-sonnet-5 from the figures above.


## Other comparisons

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


---

Source: https://comparepv.com/solar-n-plus-vs-suntech

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