How many solar panels to get 5kWh per day?

I am interested to find out more about calculating the amount of PV panels for my usage. It is around 1300KW a year with peaks around 5/6 a day. Is there a calculator that I could use to sort out what I would need?

Also are there any solar hot water panel and tank size calculations online?

many thanks, Tom

Hi Tom,

Have you looked at our solar panel calculator?

If you already know your energy usage you can skip the first couple of sections and go straight to part 3. If you put in 1000W of solar panels it will give you a rough idea of what you can expect from them per day: about 5000Wh (or 5kWh) in summer; 1000Wh (1kWh) in winter.

So, to get about 5 or 6 kWh in winter you would be looking at about 5000-6000 watts of panels. But it would be much easier in summer - you'd get the same return from just over 1000 W of panels.

Sorry, I don't know of a similar calculator for solar hot water systems.