First Solar Products
2 products across Solar Panels. Efficiency range: 19.2%–19.8%.
First Solar Panel Overview
All First Solar Panels (2)
| Model | Power | Efficiency | Cell Type | Warranty | Degradation |
|---|---|---|---|---|---|
| Series 7 545W | 545W | 19.8% | CdTe (Cadmium Telluride) | 10/30 yr | 0.5%/yr |
| Series 6 Plus 465W | 465W | 19.2% | CdTe (Cadmium Telluride) | 10/30 yr | 0.5%/yr |
Sorted by efficiency. Click any model for full specifications and review.
Estimated System Costs with First Solar Panels
| System Size | Panels Needed | Est. Cost (before ITC) | After 30% ITC |
|---|---|---|---|
| 5 kW | ~10 panels | $12,500–$17,500 | $8,750–$12,250 |
| 8 kW | ~15 panels | $20,000–$28,000 | $14,000–$19,600 |
| 10 kW | ~19 panels | $25,000–$35,000 | $17,500–$24,500 |
| 12 kW | ~23 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 Series 7 545W (545W). Actual prices vary by location and installer.
About First Solar
First Solar manufactures solar panels with 2 models in their 2026 product lineup. Their solar panels range from 465W to 545W with efficiencies of 19.2%–19.8%, using CdTe (Cadmium Telluride) cell technology. Manufacturing takes place in United States.
Quick Facts
- Total Products: 2 models
- Categories: Solar Panels
- Manufacturing: United States
- Best Efficiency: 19.8% (Series 7 545W)
- Max Power: 545W (Series 7 545W)
Frequently Asked Questions
How many solar products does First Solar offer in 2026?
First Solar offers 2 products in their 2026 lineup: 2 solar panels.
What is the most efficient First Solar solar panel?
The most efficient First Solar solar panel is the Series 7 545W at 19.8% efficiency with 545W output. First Solar panels range from 19.2% to 19.8% efficiency across 2 models.
What is the most powerful First Solar solar panel?
The highest-wattage First Solar panel is the Series 7 545W at 545W. First Solar's panel lineup ranges from 465W to 545W, using CdTe (Cadmium Telluride) cell technology.
What warranty does First Solar offer on solar panels?
First Solar offers up to 10-year product warranty and up to 30-year performance warranty on their solar panels. The average annual degradation rate is 0.50%.
Where are First Solar solar panels manufactured?
First Solar solar panels are manufactured in United States.