Panasonic Review 2026
Panasonic manufactures 6 models across solar panels & batteries. Efficiency range 21.2%–22.2%.
Headquartered in Japan · Manufacturing in Japan
Founded 1918 by Konosuke Matsushita · Headquartered in Osaka, Japan
Parent company: Panasonic Holdings Corporation
Listed: TYO:6752
Panasonic at a glance
Certifications: IEC 61215 · IEC 61730 · UL 1703 · CEC Listed
Warranty: 25-yr product · 25-yr performance
Key milestones
- 1918 Panasonic founded by Konosuke Matsushita
- 2010 Acquired Sanyo Electric, gaining HIT solar technology
- 2021 Exited in-house solar cell manufacturing, partnered for third-party module supply
- 2023 Launched EverVolt HK Black Series (third-party-manufactured, Panasonic-branded)
Source: na.panasonic.com/us/energy-solutions · Last updated 2026-05-27
Panasonic Pros & Cons (data-driven)
+ Pros
- ✓ Average panel efficiency 21.6% exceeds industry baseline 21%
- ✓ Average product warranty 25yr exceeds industry baseline 12yr
- ✓ Strong heat tolerance (-0.26%/°C, better than industry -0.32%/°C)
- ✓ Low annual degradation 0.35%/yr (industry average ~0.5%/yr)
- ✓ Battery round-trip efficiency averages 92.8% (above industry 90%)
- ✓ Battery warranty averages 15yr (above industry 10yr)
− 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 Panasonic Product List (6)
Solar Panels (4)
| Model | Wattage | Efficiency | Warranty | Verified | Score | Details |
|---|---|---|---|---|---|---|
| EverVolt HK 430W | 430W | 22.2% | 25/25 yr | — | 94 (A) | View → |
| EverVolt H 410W | 410W | 21.6% | 25/25 yr | — | 91 (A) | View → |
| EverVolt 410 | 410W | 21.5% | 25/25 yr | — | 91 (A) | View → |
| EVPV400H | 400W | 21.2% | 25/25 yr | — | 89 (B+) | View → |
Batteries (2)
| Model | Capacity | Power | Chemistry | Warranty | Verified | Details |
|---|---|---|---|---|---|---|
| EverVolt AC Series EVAC-105 | 17.1 kWh | 9 kW | LFP | 15 yr | ✓ | View → |
| EverVolt 2.0 EVDC-105 | 13.6 kWh | 7.6 kW | LFP | 15 yr | ✓ | View → |
Spec Sheet Downloads
2 manufacturer-published datasheets available for Panasonic products. All links go to the official PDF on the manufacturer's website.
- PDF Panasonic EverVolt 2.0 EVDC-105 datasheet →https://na.panasonic.com/us/evdc-105-2-dc-coupled-mini-storage-system
- PDF Panasonic EverVolt AC Series EVAC-105 datasheet →https://ftp.panasonic.com/batterystorage/datasheet/evervolt_datasheet.pdf
Recent Panasonic News
SolarSpec does not republish third-party news. For the latest Panasonic news — product launches, financial filings, recalls, supply-chain updates — search Google News directly.
Search Panasonic news on Google News →Related Brands
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Frequently Asked Questions
What is the SolarSpec Score for Panasonic?
Panasonic earns a SolarSpec Score of 91/100 (Grade A) based on the weighted average of all 6 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 Panasonic offer in 2026?
Panasonic offers 6 products in their 2026 lineup: 4 solar panels, and 2 batteries.
What is the most efficient Panasonic solar panel?
The most efficient Panasonic solar panel is the EverVolt HK 430W at 22.2% efficiency with 430W output. Panasonic panels range from 21.2% to 22.2% efficiency across 4 models.
What warranty does Panasonic offer on solar panels?
Panasonic offers up to 25-year product warranty and up to 25-year performance warranty. Average annual degradation across the lineup is 0.35%.
Where are Panasonic solar panels manufactured?
Panasonic solar panels are manufactured in Japan.
Where can I download Panasonic datasheets?
We have direct manufacturer-published datasheet links for 2 of 6 Panasonic products. See the Spec Sheet Downloads section below for direct PDF links.
How we score brands
Every Panasonic 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 6 models.
Read the full SolarSpec methodology →