The budget option
Polycrystalline
Panel specification
| Cell type | Polycrystalline |
|---|---|
| Efficiency | 16-17% |
| Product warranty | 10 years |
| Performance warranty | 25 years, 80% output |
| Best for | Large roofs, tight budgets |
Polycrystalline is the older technology, and we are straightforward about that.
It runs at 16-17% efficiency against 20-21% for Mono PERC, which means more panels and more roof for the same output. If your roof is generous and the budget is tight, that is a perfectly sensible trade and the panels will last just as long.
If your roof is small, this is a false economy — you will fill the space and still not reach the system size you wanted. In that case spend the extra on Mono PERC.
Most of our customers end up on Mono PERC. We stock these because for some roofs and some budgets they are genuinely the right answer.
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