The number of Solar Panels you have on your roof is determined by several key factors. Each of these factors plays a role in helping you decide on the number of Solar Panels you should fit on your roof.
Size of your roof
The most obvious factor determining how many Solar Panels you should fit on your roof is the size of your roof. If you can only fit eight panels on your roof then you are limited to eight panels.
When estimating the number of panels you can fit on your roof you should consider laying the panels both Portrait and Landscape.
The number of solar panels you have fitted obviously has a direct impact on the initial cost of having the system installed. However it is worth remembering that you are unlikely to have more panels added to your system once it has been fitted.
The solar panels themselves are relatively inexpensive with a large part of the installation cost going on tradesman and scaffolding.
The government has introduced the Feed-in Tariff to incentivise people to produce their own electricity. However the tariff has different tiers depending on the size of your renewable energy system.
The highest tier of the Feed-in Tariff is available up to 4 kW systems therefore its less cost effective to exceed this system size unless you are looking to get a system size of between 8 – 10 kW.
Overall it is advisable to get as many Solar Panels as you can on your roof without exceeding the 4 kW system size as you are unlikely to add more panels once it has been installed. Soon we will be adding a roof size calculator to our website so check back soon to calculate the size of your roof.