One factor that is often forgotten is that a shallow angle is better on cloudy days. If you are off grid that's the time when power is short. Similarly there is an argument for having arrays pointing south west and south east to get more power in the morning or evening and to get a more even spread of power through the day.
Very interesting! This matters so much less than I ever expected.
One factor that is often forgotten is that a shallow angle is better on cloudy days. If you are off grid that's the time when power is short. Similarly there is an argument for having arrays pointing south west and south east to get more power in the morning or evening and to get a more even spread of power through the day.