Next Slideshow Best Blue Flowers for Your Garden Best Blue Flowers for Your GardenBest Blue Flowers for Your Garden Blue flowers add a cool touch to the landscape. Get the names of blue flowers and learn how to grow different types of blue flowers in your garden.
Solar panels should always face true south if you are in the northern hemisphere, or true north if you are in the southern hemisphere. True north is not the same as magnetic north. If you are using a compass to orient your panels, you need to correct for the difference, which varies from place to place.
For this reason, do not install on East or West facing roof sections unless your installer can give you exact calculations of how much power you can expect to get based on your roof direction and pitch. Licking his finger and putting it the air and saying she'll be right! is not quite good enough!