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Solaria Solar Panels Review 2026

Comprehensive analysis of Solaria's solar panel portfolio — 24 panels reviewed with detailed specifications, efficiency data, and technology breakdown.

24 Panels Up to 21.9% Efficiency 310W – 680W
Solaria

Company Overview

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 solar panels to developing and managing solar plants.

Headquarters
Madrid, Spain
Founded
2002
Employees
235
Production Capacity
1.658 GW
Stock
BME (Madrid Stock Exchange): SLR
Website
Visit site

Key Statistics

Total Panels 24
Avg. Efficiency 20.0%
Max Efficiency 21.9%
Power Range 310W – 680W
Avg. Power 445W
Avg. Temp Coeff -0.36%/°C
Bifacial Panels 5 (21%)
Avg. Warranty 27 years

Technology Breakdown

Cell Technologies

Unknown 15 panels (62.5%)
TOPCon 5 panels (20.8%)
PERC 4 panels (16.7%)

Power Distribution

<400W 11 panels (45.8%)
400-499W 8 panels (33.3%)
600-699W 5 panels (20.8%)

Top Picks from Solaria

Most Efficient

# Model Power Efficiency Tech
1 SPV680-TG12-132BD 680W 21.9% Monocrystalline
2 SPV675-TG12-132BD 675W 21.8% Monocrystalline
3 SPV670-TG12-132BD 670W 21.6% Monocrystalline
4 SPV665-TG12-132BD 665W 21.4% Monocrystalline
5 SPV660-TG12-132BD 660W 21.3% Monocrystalline

Highest Power

# Model Power Efficiency Tech
1 SPV680-TG12-132BD 680W 21.9% Monocrystalline
2 SPV675-TG12-132BD 675W 21.8% Monocrystalline
3 SPV670-TG12-132BD 670W 21.6% Monocrystalline
4 SPV665-TG12-132BD 665W 21.4% Monocrystalline
5 SPV660-TG12-132BD 660W 21.3% Monocrystalline

Best Solaria Panels by Use Case

Best for Residential

380–460W range, ranked by efficiency
20.5% 400W
20.4% 430W
20.2% 400W
20.2% 395W
20.0% 390W

Best for Commercial

500W+, ranked by power output
680W 21.9%
675W 21.8%
670W 21.6%
665W 21.4%
660W 21.3%

Best Bifacial

Dual-sided panels, ranked by efficiency
21.9% 680W
21.8% 675W
21.6% 670W
21.4% 665W
21.3% 660W

Pros & Cons

Strengths

  • Strong warranty coverage averaging 27 years
  • High-power panels available (up to 680W) for commercial applications
  • Established manufacturer with 24+ years of experience
  • Large-scale production capacity of 1.658 GW

Considerations

  • Average efficiency of 20.0% is below the industry leading edge

Efficiency Distribution

11
<20%
45.8%
8
20-21%
33.3%
5
21-22%
20.8%

Frequently Asked Questions

Solaria offers 24 solar panel models with an average efficiency of 20.0%. Check their full panel lineup on ComparePV to find the best model for your needs.

Solaria manufactures panels ranging from 310W to 680W, covering both residential and commercial applications. Their portfolio includes Unknown (62%), TOPCon (21%), PERC (17%) cell technologies.

Solaria panels have an average efficiency of 20.0%, with their most efficient model reaching 21.9%. This puts them at a solid mid-range level in the current market.

Yes, Solaria offers 5 bifacial panels, representing 21% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.

Solaria panels come with an average performance warranty of 27 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.

Solaria offers panels in the residential-friendly 380–460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.

Yes, Solaria has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production.

The Verdict

Solaria is a solid option, offering 24 panels suitable for both residential and commercial buyers. With an average efficiency of 20.0% and top models reaching 21.9%, their panels deliver competitive performance.

Compare Solaria with Competitors

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Explore All Solaria Panels

Browse the complete catalog of 24 Solaria solar panels with detailed specifications, filters, and comparison tools.

View All 24 Panels Compare Panels