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.
The roof spaced needed to install a solar panel is typically 100 square feet of roof space for every 1 kW of conventional solar panels. Ideally, the roof should have a 45-degree pitch, but solar panels will function with a pitch as low as 10 to 15 degrees and only experience a 4 percent drop in energy creation.