Annually a 4kw solar panel system will generate enough electricity to meet the needs of a regular uk family.
Power generated by a 4kwp solar panel system.
Wattage can be as low as 240 watts for cheaper panels to over 300 watts for the more expensive options.
Most homes will install several solar panels known as a solar panel system.
How many solar panels is that.
But don t forget with the fit almost disappearing in january 2016 maximising value from your solar setup is now just a question of maximising the energy it can generate.
A 4kw solar panel system will cost you around 5 000 but if installed by an mcs certified supplier it will save you up to 870 a year.
4kwp is around 5500 7800 and 5kwp works out at about 1k more.
Most solar panels for residential installations are around 265 watts providing a good balance between efficiency and cost.
The output of a solar panel system can be calculated by multiplying the wattage of each solar panel by the total number of solar panels.
Of course installation is slightly pricier.
So you d be crazy not to consider going larger.