How many panels do I need?

When sizing a system to cover your electricity bills, a solar provider will often refer to the number of kilo-Watts (kW) the system can produce rather than the number of panels. This is because depending on the quality of the panel, as well as maximum energy production of that unit, a single panel can range from 30W to 300W in power output. This means there can be a huge difference between a ten panel system producing 300W (10x30W Panels) and one producing 3kW or 3000W (10x300W Panels). A solar provider will determine how powerful your panels need to be depending on how much room you have on your roof.

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