---
title: "Solaria vs Solarwatt - Brand Comparison | ComparePV"
description: "Compare Solaria vs Solarwatt solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/solaria-vs-solarwatt"
---

# Solaria vs Solarwatt

Solarwatt has the broader catalog (44 vs 27 models). Solarwatt leads on peak efficiency at 23.00%. Solarwatt leans bifacial (50% of lineup).


## The two companies


| Attribute | Solaria | Solarwatt |
| --- | --- | --- |
| Country | Spain | Germany |
| Headquarters | Madrid | Dresden |
| Founded | 2002 | 1993 |
| Employees | 235 |  |
| Annual capacity | 1.658 GW/year |  |
| Tier 1 |  | no |
| Listed | BME (Madrid Stock Exchange): SLR |  |
| Website | [https://www.solaria.com](https://www.solaria.com) | [https://www.solarwatt.com](https://www.solarwatt.com) |

Solaria is a leading European company focused on developing and generating solar photovoltaic energy. The company aims to contribute to decarbonization by creating a global energy model based on clean energy. Solaria specializes in the implementation and development of solar photovoltaic technology, from manufacturing...


## Catalog & Power


| Measure | Solaria | Solarwatt | Margin |
| --- | --- | --- | --- |
| Panel Models | 27 | 44 | +17 |
| Max Power | 680 W | 460 W | +220 W |
| Avg Power | 436 W | 385 W | +51 W |


## Efficiency


| Measure | Solaria | Solarwatt | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 21.92% | 23.00% | +1.08 pp |
| Avg Efficiency | 19.96% | 20.56% | +0.60 pp |


## Reliability & Warranty


| Measure | Solaria | Solarwatt | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.360%/°C | -0.330%/°C | +0.029 |
| Bifacial Share | 5 (19%) | 22 (50%) | +31 pp |
| Avg Warranty | 26.5 yrs | 29.0 yrs | +2.5 yr |


## Efficiency distribution

Solarwatt skews to higher efficiency: 2% of lineup is 23%+


| Efficiency band | Solaria | Solarwatt |
| --- | --- | --- |
| \<20% | 13 (48.1%) | 13 (29.5%) |
| 20-21% | 9 (33.3%) | 19 (43.2%) |
| 21-22% | 5 (18.5%) | 2 (4.5%) |
| 22-23% | 0 | 9 (20.5%) |
| 23%+ | 0 | 1 (2.3%) |


## Power distribution

Solaria offers more 600W+ panels (19% of lineup)


| Power band | Solaria | Solarwatt |
| --- | --- | --- |
| \<400W | 14 (51.9%) | 20 (45.5%) |
| 400-499W | 8 (29.6%) | 24 (54.5%) |
| 600-699W | 5 (18.5%) | 0 |


## Cell technology

Dominant cell tech: **TOPCon** (19%)

Dominant cell tech: **PERC** (77%)


| Technology | Solaria | Solarwatt |
| --- | --- | --- |
| Unknown | 18 (66.7%) | 0 |
| TOPCon | 5 (18.5%) | 10 (22.7%) |
| PERC | 4 (14.8%) | 34 (77.3%) |


## Top panels, Solaria


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SPV680-TG12-132BD](https://comparepv.com/panel/solaria-spv680-tg12-132bd) | 680 | 21.9 | -0.300 | Monocrystalline |
| 2 | [SPV675-TG12-132BD](https://comparepv.com/panel/solaria-spv675-tg12-132bd) | 675 | 21.8 | -0.300 | Monocrystalline |
| 3 | [SPV670-TG12-132BD](https://comparepv.com/panel/solaria-spv670-tg12-132bd) | 670 | 21.6 | -0.300 | Monocrystalline |
| 4 | [SPV665-TG12-132BD](https://comparepv.com/panel/solaria-spv665-tg12-132bd) | 665 | 21.4 | -0.300 | Monocrystalline |
| 5 | [SPV660-TG12-132BD](https://comparepv.com/panel/solaria-spv660-tg12-132bd) | 660 | 21.3 | -0.300 | Monocrystalline |
| 6 | [PowerXT 430R-PL](https://comparepv.com/panel/solaria-powerxt-430r-pl) | 430 | 20.4 | -0.390 | Monocrystalline |
| 7 | [Solaria PowerXT-430C-PD](https://comparepv.com/panel/solaria-solaria-powerxt-430c-pd) | 430 | 19.8 | -0.390 | Monocrystalline |
| 8 | [PowerXT 420R-PL](https://comparepv.com/panel/solaria-powerxt-420r-pl) | 420 | 19.9 | -0.390 | Monocrystalline |
| 9 | [Solaria PowerXT-420C-BD](https://comparepv.com/panel/solaria-solaria-powerxt-420c-bd) | 420 | 19.4 | -0.390 | Monocrystalline |
| 10 | [Solaria PowerXT-420C-PD](https://comparepv.com/panel/solaria-solaria-powerxt-420c-pd) | 420 | 19.4 | -0.390 | Monocrystalline |


## Top panels, Solarwatt


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SOLARWATT Panel vision M 5.0 460 Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-460-wp) | 460 | 23.0 | -0.290 | Monocrystalline |
| 2 | [SOLARWATT Panel vision M 5.0 455 Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-455-wp) | 455 | 22.8 | -0.290 | Monocrystalline |
| 3 | [SOLARWATT Panel vision M 5.0 450 Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-450-wp) | 450 | 22.5 | -0.290 | Monocrystalline |
| 4 | [SOLARWATT Panel vision M 5.0 450Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-450wp) | 450 | 22.5 | -0.290 | Monocrystalline |
| 5 | [vision M 5.0 450 Wp](https://comparepv.com/panel/solarwatt-vision-m-5-0-450-wp) | 450 | 22.5 | -0.290 | Monocrystalline |
| 6 | [SOLARWATT Panel vision M 5.0 445 Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-445-wp) | 445 | 22.3 | -0.290 | Monocrystalline |
| 7 | [SOLARWATT Panel vision M 5.0 445Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-445wp) | 445 | 22.3 | -0.290 | Monocrystalline |
| 8 | [vision M 5.0 445 Wp](https://comparepv.com/panel/solarwatt-vision-m-5-0-445-wp) | 445 | 22.3 | -0.290 | Monocrystalline |
| 9 | [SOLARWATT Panel vision M 5.0 440Wp](https://comparepv.com/panel/solarwatt-solarwatt-panel-vision-m-5-0-440wp) | 440 | 22.0 | -0.290 | Monocrystalline |
| 10 | [vision M 5.0 440 Wp](https://comparepv.com/panel/solarwatt-vision-m-5-0-440-wp) | 440 | 22.0 | -0.290 | Monocrystalline |


## Other comparisons

- [Solaria vs A.B. Energy](https://comparepv.com/solaria-vs-a-b-energy)
- [AE Solar vs Solarwatt](https://comparepv.com/ae-solar-vs-solarwatt)
- [Solaria vs AEET](https://comparepv.com/solaria-vs-aeet)
- [AIKO vs Solarwatt](https://comparepv.com/aiko-vs-solarwatt)
- [Solaria vs AKCOME](https://comparepv.com/solaria-vs-akcome)
- [ARTsolar vs Solarwatt](https://comparepv.com/artsolar-vs-solarwatt)


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Source: https://comparepv.com/solaria-vs-solarwatt

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