Decided to run my ebikes on solar

[Chargeride]

Sorry, I am not familiar with this terminology.

By "non-steered", do you mean fixed, in place panels that do not follow the sun?
By "generation factor", would that imply that for 80W I would need 320W of panels just to run the pond and have nothing left to charge the power bank?

It actually refers to the amount of power generated over time compared to its plate rating, or max output.
They only produce full power in full direct above sunlight at 90 degree to the panel.
Thats why fixed panel solar farms in northern England are little more than grant assisted investment farms.