Tongwei Solar Products
2 products across Solar Panels. Efficiency range: 21.5%–22.5%.
Tongwei Solar Panel Overview
All Tongwei Solar Panels (2)
| Model | Power | Efficiency | Cell Type | Warranty | Degradation |
|---|---|---|---|---|---|
| THN-EP08M10 580W | 580W | 22.5% | TOPCon N-type | 12/25 yr | 0.4%/yr |
| THN-PE14M10 450W | 450W | 21.5% | PERC Mono | 12/25 yr | 0.5%/yr |
Sorted by efficiency. Click any model for full specifications and review.
Estimated System Costs with Tongwei Panels
| System Size | Panels Needed | Est. Cost (before ITC) | After 30% ITC |
|---|---|---|---|
| 5 kW | ~9 panels | $12,500–$17,500 | $8,750–$12,250 |
| 8 kW | ~14 panels | $20,000–$28,000 | $14,000–$19,600 |
| 10 kW | ~18 panels | $25,000–$35,000 | $17,500–$24,500 |
| 12 kW | ~21 panels | $30,000–$42,000 | $21,000–$29,400 |
Estimates based on national average installed costs of $2.50–$3.50/watt. Panel count uses the THN-EP08M10 580W (580W). Actual prices vary by location and installer.
About Tongwei
Tongwei manufactures solar panels with 2 models in their 2026 product lineup. Their solar panels range from 450W to 580W with efficiencies of 21.5%–22.5%, using TOPCon N-type and PERC Mono cell technology. Manufacturing takes place in China.
Quick Facts
- Total Products: 2 models
- Categories: Solar Panels
- Manufacturing: China
- Best Efficiency: 22.5% (THN-EP08M10 580W)
- Max Power: 580W (THN-EP08M10 580W)
Frequently Asked Questions
How many solar products does Tongwei offer in 2026?
Tongwei offers 2 products in their 2026 lineup: 2 solar panels.
What is the most efficient Tongwei solar panel?
The most efficient Tongwei solar panel is the THN-EP08M10 580W at 22.5% efficiency with 580W output. Tongwei panels range from 21.5% to 22.5% efficiency across 2 models.
What is the most powerful Tongwei solar panel?
The highest-wattage Tongwei panel is the THN-EP08M10 580W at 580W. Tongwei's panel lineup ranges from 450W to 580W, using TOPCon N-type and PERC Mono cell technology.
What warranty does Tongwei offer on solar panels?
Tongwei offers up to 12-year product warranty and up to 25-year performance warranty on their solar panels. The average annual degradation rate is 0.45%.
Where are Tongwei solar panels manufactured?
Tongwei solar panels are manufactured in China.