As a rule of thumb 6-8 hours of full sun a day is ample power to charge a FieldKit station. Any spot with enough sun for a vegetable garden will be good for your station. In general, solar panels being used in the Northern Hemisphere should face south at a 30-40 degree angle, and solar panels being used in the Southern Hemisphere should be at the same angle but facing north. Still not sure how to position your panel? Try asking the helpful folks in the FieldKit Community Forum!