Solaria Review 2026
Solaria manufactures 2 models across solar panels. Efficiency range 20.5%–21.3%.
Headquartered in USA · Manufacturing in USA
Founded 1999 by Suvi Sharma · Headquartered in Fremont, California, United States
Parent company: Complete Solaria, Inc.
Listed: NASDAQ:CSLR
Solaria at a glance
Certifications: IEC 61215 · IEC 61730 · UL 1703 · CEC Listed · Buy American Act
Warranty: 25-yr product · 25-yr performance
Key milestones
- 1999 Founded in Fremont, California
- 2022 Merged with Complete Solar to form Complete Solaria
- 2024 Acquired SunPower residential business assets
Source: www.solaria.com/about · Last updated 2026-05-27
Solaria Pros & Cons (data-driven)
+ Pros
- ✓ Average product warranty 25yr exceeds industry baseline 12yr
- ✓ Low annual degradation 0.4%/yr (industry average ~0.5%/yr)
- ✓ 100% of SKUs triple-verified against manufacturer datasheets
− Cons
- ✗ Distributor and installer pricing varies — direct retail rarely available
- ✗ Some 2026 models depend on regional distributor availability
Pros and cons calculated against industry baselines: 21% panel efficiency, 12yr panel warranty, -0.32%/°C temp coeff, 90% battery RTE.
Current Solaria Product List (2)
Solar Panels (2)
| Model | Wattage | Efficiency | Warranty | Verified | Score | Details |
|---|---|---|---|---|---|---|
| PowerXT 430R | 430W | 21.3% | 25/25 yr | ✓ | 90 (A) | View → |
| PowerXT 400R Pure Black | 400W | 20.5% | 25/25 yr | ✓ | 86 (B+) | View → |
Spec Sheet Downloads
2 manufacturer-published datasheets available for Solaria products. All links go to the official PDF on the manufacturer's website.
- PDF Solaria PowerXT 430R datasheet →https://www.solaria.com/s/Datasheet_PowerXT-430R-PL.pdf
- PDF Solaria PowerXT 400R Pure Black datasheet →https://www.solaria.com/s/Datasheet_PowerXT_Resi-400PM.pdf
Recent Solaria News
SolarSpec does not republish third-party news. For the latest Solaria news — product launches, financial filings, recalls, supply-chain updates — search Google News directly.
Search Solaria news on Google News →Related Brands
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Frequently Asked Questions
What is the SolarSpec Score for Solaria?
Solaria earns a SolarSpec Score of 88/100 (Grade B+) based on the weighted average of all 2 models in their 2026 lineup. The score combines efficiency, warranty, temperature coefficient, and verification status. See our /methodology/ page for the full formula.
How many solar products does Solaria offer in 2026?
Solaria offers 2 products in their 2026 lineup: 2 solar panels.
What is the most efficient Solaria solar panel?
The most efficient Solaria solar panel is the PowerXT 430R at 21.3% efficiency with 430W output. Solaria panels range from 20.5% to 21.3% efficiency across 2 models.
What warranty does Solaria offer on solar panels?
Solaria offers up to 25-year product warranty and up to 25-year performance warranty. Average annual degradation across the lineup is 0.4%.
Where are Solaria solar panels manufactured?
Solaria solar panels are manufactured in USA.
Where can I download Solaria datasheets?
We have direct manufacturer-published datasheet links for 2 of 2 Solaria products. See the Spec Sheet Downloads section below for direct PDF links.
How we score brands
Every Solaria model in our catalog is scored 0-100 using a transparent formula: efficiency (25 pts), product warranty (20 pts), performance warranty bonus (3 pts), temperature coefficient (12 pts), and datasheet verification (5 pts), on a 50-point baseline. The brand-level score is the simple average across all 2 models.
Read the full SolarSpec methodology →