Panasonic vs Trina Solar Solar Panels
A side-by-side 2026 comparison of efficiency, price per watt, warranty, and hot-weather performance for Panasonic (Premium, 4.5/5) and Trina Solar (Mid-Range, 4.2/5).
Panasonic (Premium, 4.5/5) and Trina Solar (Mid-Range, 4.2/5) are both proven residential solar panels. Trina Solar is the more efficient panel, while Trina Solar costs less per watt.
- Most efficient: Trina Solar, up to 22.5% (vs 22.2%).
- Lower price per watt: Trina Solar, from $0.45/W.
- Longer product warranty: Panasonic, 25 years.
- Better in hot climates: Panasonic, lower temperature loss.
- Best for: Trina Solar on small or shaded roofs; Trina Solar on a tight budget.
How do Panasonic and Trina Solar compare on specs?
The table below puts every key 2026 metric side by side and marks the winner on each row. Trina Solar leads on efficiency; Trina Solar leads on price.
| Specification | Panasonic | Trina Solar |
|---|---|---|
| Tier | Premium | Mid-Range |
| Overall rating | 4.5/5✓ | 4.2/5 |
| Max efficiencyHigher is better | 22.2% | 22.5%✓ |
| Max wattageHigher is better | 410 W | 670 W✓ |
| Price per wattLower is better | $0.95–$1.55 | $0.45–$0.95✓ |
| Product warrantyLonger is better | 25 yr✓ | 15 yr |
| Temperature coefficientCloser to 0 is better | -0.26%/°C✓ | -0.29%/°C |
| Annual degradationLower is better | 0.25%✓ | 0.35% |
| Country | Japan | China |
| Founded | 1918 | 1997 |
| Models available | 3 | 4 |
Which is more efficient, Panasonic or Trina Solar?
Trina Solar is more efficient, converting up to 22.5% of sunlight into electricity versus 22.2% for Panasonic. Higher efficiency produces more watts per square foot, so it matters most on small or partially shaded roofs. On a large, unshaded roof the difference is minor — you can add a panel or two to match output.
Which is cheaper, Panasonic or Trina Solar?
Trina Solar is the lower-cost option, starting near $0.45 per watt before installation. Panasonic ranges $0.95–$1.55/W and Trina Solar ranges $0.45–$0.95/W. On a typical 6 kW system that price gap works out to a few hundred to a few thousand dollars before incentives like the 30% federal tax credit.
Which performs better in hot weather?
Panasonic performs better in heat, with a temperature coefficient closer to zero — it loses less output as panel temperature climbs. In hot-sun states like Arizona, Texas, and Florida, a better temperature coefficient can mean a few extra percent of summer production.
Which Panasonic or Trina Solar panel should you choose?
- Small or shaded roof: Trina Solar — higher efficiency fits more power in less space.
- Tight budget / large roof: Trina Solar — lower price per watt wins when space isn't the constraint.
- Hot climate: Panasonic — better heat performance protects summer output.
- Longest protection: Panasonic — 25-year product warranty.
Panasonic
Full review →Pros
- Exceptional temperature coefficient for hot climates
- HJT cell technology delivers superior real-world performance
- Trusted global brand with decades of manufacturing experience
- Strong warranty coverage and reliability track record
Cons
- Premium pricing compared to many Chinese manufacturers
- Smaller product lineup than some competitors
- Panel availability can fluctuate in certain markets
Trina Solar
Full review →Pros
- Vertex series delivers excellent power density
- Competitive pricing with strong manufacturing scale
- Decades of industry experience and proven reliability
- Wide product range for all market segments
Cons
- Standard product warranty shorter than some premium brands
- Residential brand recognition lower than SunPower or Panasonic in the US
- Some models primarily designed for commercial/utility scale
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Get Free Solar QuotesPanasonic vs Trina Solar FAQ
Trina Solar is more efficient (up to 22.5% vs 22.2%), and Trina Solar costs less per watt (from $0.45/W). Panasonic holds a 4.5/5 rating versus 4.2/5 for Trina Solar. The better panel depends on whether you prioritize efficiency, price, or warranty.
Trina Solar is the lower-cost option, starting around $0.45 per watt. Panasonic ranges $0.95–$1.55/W and Trina Solar ranges $0.45–$0.95/W before installation.
Trina Solar reaches the higher efficiency at 22.5%, compared with 22.2% for the other. Higher efficiency lets you fit more power on a smaller roof.
Panasonic offers the longer product warranty at 25 years. Lower annual degradation also matters: Panasonic degrades about 0.25% per year and Trina Solar about 0.35%.
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