Technical FAQs 3

How are solar panels rated?

Solar panels are rated based on the watts they generate. The higher the wattage rating, the greater amount of power your solar installation will produce. Most residential solar panels have power output ratings from 250 to 400 watts, depending on panel size and how well they convert sunlight into energy.

How do you rate solar panels?

Another way to rate solar panels is their efficiency, or what percentage of sunlight that hits the solar panel is converted to electricity. If you’re a panel manufacturer, you have two ways to make your solar panels produce more electricity: you can add more solar cells to your panel or increase the efficiency of each cell.

How efficient are solar panels?

Maximising efficiency ensures your solar array produces the highest possible energy output. The photovoltaic solar cells within the panels directly determine efficiency. Monocrystalline silicon cells reach around 20% efficiency, while polycrystalline are 16-17% efficient.

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Solar panel rating

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