Interesting and non-obvious fact about solar panels...
The optimal angle for generating as much power as possible from the panels is very different to the optimal angle for powering something year round.
If you want to power something year round, it's the power in winter you need to maximize - so you angle the panel very steep to collect winter sun. In the summer, this angle is far from optimal, but due to more hours of sunlight there will still be plenty to power whatever device it is you want to be always powered.
The optimal angle for generating as much power as possible from the panels is very different to the optimal angle for powering something year round.
If you want to power something year round, it's the power in winter you need to maximize - so you angle the panel very steep to collect winter sun. In the summer, this angle is far from optimal, but due to more hours of sunlight there will still be plenty to power whatever device it is you want to be always powered.