Monocrystalline vs Polycrystalline: Which is Better?
When shopping for solar panels, you'll encounter two main types: Monocrystalline and Polycrystalline. The main difference lies in the purity of silicon used and the efficiency.
Efficiency Comparison
Monocrystalline panels are made from pure silicon crystals. They have a uniform black look and offer the highest efficiency (20-22%). This means they generate more power in less space.
Polycrystalline panels are made from melted silicon fragments. They have a blue speckled look and lower efficiency (15-17%). You need more roof area for the same power.
Quick Comparison Table
| Feature | Monocrystalline (Mono PERC) | Polycrystalline |
|---|---|---|
| Appearance | Black, Uniform | Blue, Speckled |
| Efficiency | High (19-22%) | Moderate (15-17%) |
| Cost | Higher | Lower |
| Space Required | Less | More |
Our Recommendation
For most residential rooftops where space is limited, Mono PERC panels are the standard choice in 2026. The slight price premium is worth the extra generation over 25 years.