PV Gap

Betty Said:

Can a solar panel facing north generate enough energy?

We Answered:

It would not produce as much as it would facing south. Whether directly or indirectly, south facing panels will get you the most out of the daily sunshine.
Then there is the size question. More surface area exposed to the sun will give you more wattage in the end.
Reputable solar panel dealers should be able to give you their optimum recommendation and estimates.