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

# Goldi Solar vs Suntech

Suntech has the broader catalog (255 vs 145 models). Suntech leads on peak efficiency at 24.80%. Goldi Solar leans bifacial (79% of lineup).


## The two companies


| Attribute | Goldi Solar | Suntech |
| --- | --- | --- |
| Country | India | China |
| Headquarters | Surat | Wuxi |
| Founded | 2011 | 2001 |
| Employees | 250-499 Employees |  |
| Annual capacity | 15.2 GW/year |  |
| Tier 1 | yes | yes |
| Listed |  |  |
| Website | [http://www.goldisolar.com](http://www.goldisolar.com) | [https://www.suntech-power.com](https://www.suntech-power.com) |

Goldi Solar is a leading Indian solar PV module manufacturer and EPC service provider committed to accelerating the transition to sustainable energy. Established in 2011 and headquartered in Surat, Gujarat, the company offers cutting-edge solar solutions that power industries, businesses, and communities across more...


## Catalog & Power


| Measure | Goldi Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Panel Models | 145 | 255 | +110 |
| Max Power | 715 W | 735 W | +20 W |
| Avg Power | 513 W | 505 W | +8 W |


## Efficiency


| Measure | Goldi Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.03% | 24.80% | +1.77 pp |
| Avg Efficiency | 21.16% | 21.76% | +0.60 pp |


## Reliability & Warranty


| Measure | Goldi Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.326%/°C | -0.316%/°C | +0.011 |
| Bifacial Share | 115 (79%) | 114 (45%) | +35 pp |
| Avg Warranty | 27.6 yrs | 28.4 yrs | +0.8 yr |


## Efficiency distribution

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


| Efficiency band | Goldi Solar | Suntech |
| --- | --- | --- |
| \<20% | 4 (2.8%) | 11 (4.3%) |
| 20-21% | 67 (46.2%) | 61 (23.9%) |
| 21-22% | 47 (32.4%) | 64 (25.1%) |
| 22-23% | 25 (17.2%) | 70 (27.5%) |
| 23%+ | 2 (1.4%) | 49 (19.2%) |


## Power distribution

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


| Power band | Goldi Solar | Suntech |
| --- | --- | --- |
| \<400W | 8 (5.5%) | 32 (12.5%) |
| 400-499W | 59 (40.7%) | 104 (40.8%) |
| 500-599W | 59 (40.7%) | 69 (27.1%) |
| 600-699W | 12 (8.3%) | 42 (16.5%) |
| 700W+ | 7 (4.8%) | 8 (3.1%) |


## Cell technology

Dominant cell tech: **PERC** (74%)

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


| Technology | Goldi Solar | Suntech |
| --- | --- | --- |
| PERC | 107 (73.8%) | 5 (2.0%) |
| TOPCon | 31 (21.4%) | 180 (70.6%) |
| HJT | 7 (4.8%) | 0 |
| Unknown | 0 | 65 (25.5%) |
| N-type | 0 | 5 (2.0%) |


## Top panels, Goldi Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [GS12-T132-GF-715](https://comparepv.com/panel/goldi-solar-gs12-t132-gf-715) | 715 | 23.0 | -0.280 | Monocrystalline |
| 2 | [GS12-T132-GF-710](https://comparepv.com/panel/goldi-solar-gs12-t132-gf-710) | 710 | 22.9 | -0.280 | Monocrystalline |
| 3 | [G12 Series 710Wp](https://comparepv.com/panel/goldi-solar-g12-series-710wp) | 710 | 22.9 | -0.259 | Monocrystalline |
| 4 | [GS12-T132-GF-705](https://comparepv.com/panel/goldi-solar-gs12-t132-gf-705) | 705 | 22.7 | -0.280 | Monocrystalline |
| 5 | [G12 Series 705Wp](https://comparepv.com/panel/goldi-solar-g12-series-705wp) | 705 | 22.7 | -0.259 | Monocrystalline |
| 6 | [GS12-T132-GF-700](https://comparepv.com/panel/goldi-solar-gs12-t132-gf-700) | 700 | 22.5 | -0.280 | Monocrystalline |
| 7 | [G12 Series 700Wp](https://comparepv.com/panel/goldi-solar-g12-series-700wp) | 700 | 22.5 | -0.259 | Monocrystalline |
| 8 | [GS12-T132-GF-695](https://comparepv.com/panel/goldi-solar-gs12-t132-gf-695) | 695 | 22.4 | -0.280 | Monocrystalline |
| 9 | [G12 Series 695Wp](https://comparepv.com/panel/goldi-solar-g12-series-695wp) | 695 | 22.4 | -0.259 | Monocrystalline |
| 10 | [GS12-T132-GF-690](https://comparepv.com/panel/goldi-solar-gs12-t132-gf-690) | 690 | 22.2 | -0.280 | 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

Goldi Solar is an Indian manufacturer based in Surat, Gujarat, founded in 2011, that has rapidly scaled its module manufacturing capacity from roughly 3 GW to about 15.2 GW per year, making it India's largest solar module producer. It holds BIS certification and ALMM listing, and was named a Top Performer in Kiwa PVEL's 2024 scorecard, a distinction earned by only around 50 manufacturers worldwide. Suntech, by contrast, is a Chinese manufacturer based in Wuxi, founded in 2001 by Shi Zhengrong and once the world's largest solar producer before its 2013 bankruptcy; the brand and Wuxi operations were acquired by Shenglong Electric and continue under the Suntech name. Suntech held BloombergNEF Tier 1 bankable status for years but was dropped from that list in mid-2025 for failing to meet the updated criteria, while Goldi Solar is still building its institutional track record, primarily through domestic strength and exports to more than 20 countries, giving Goldi the more solid current footprint on paper.

Both brands center their lineups on N-type TOPCon cells, including bifacial variants, aimed at residential rooftop, commercial and industrial, and utility-scale ground-mount projects. Goldi Solar markets series such as HELOC Plus G12 and HELOC Pro with outputs up to roughly 705 W, while Suntech continues developing its own TOPCon range plus lightweight glass-glass modules and has committed around 1.5 billion dollars to a new 10 GW TOPCon cell facility in China.

For a typical international buyer, Goldi Solar currently looks like the steadier pick given its fast capacity growth and recent independent quality recognition, whereas Suntech, despite a longer legacy and comparable core technology, warrants closer supplier due diligence following its loss of Tier 1 status and earlier financial restructuring. Neither brand clearly outperforms the other on cell technology alone, but they differ meaningfully in institutional risk profile.

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


## Other comparisons

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


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

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