How much power does solar panels actually generate?

Hi Acei,

It is better to work with "worst case" and have a pleasant surprise than to be over optimistic and have a nasty surprise in the form of a short fall of energy. Obviously we get many more hours of sun in June than in December. But energy use may often be much greater in December.

Here is a place to do some "look ups" on solar insolation rates:

Photovoltaic potential

Since you are in the Toronto area this may be useful:

Toronto, Canada

Acei wrote:
I will need close to 1000w of solar panel according to the sheet (based on the assumption that I only have 4 hours of sunlight per day - is this a good assumption?)