Therefore when sizing your solar pv system we recommend using this to drive your calculations.
How many solar panels for my roof.
To get these numbers we used high and low panel production ratios to calculate how many solar panels are needed on average.
With a panel therefore being approximately 1 44m2 in total to get 14 panels on a roof you need a space of about 20m2.
Here s how many solar panels that equals.
Solar size number of panels power rating roof area covered.
The typical homeowner will need 28 34 solar panels to cover 100 of their energy usage dependent on location and roof size.
However roof mounted solar installations must also be more than 30cm away from the external edge of the roof meaning that actually you will need an even larger space so this needs to be factored in to any roof sizing calculations.
When you want to install solar panels it is vital to understand certain features of the roof and the solar panels.
Divide 6 62 kw the system size by 320 kw the wattage per panel 20 69 rounded up that s 21 panels.
While your home is far from average this is how you can calculate your own rough estimate.