The efficiency of a solar energy system varies a lot depending on its exposure to the sun. If you live in a sunny area, your system should produce enough energy to cover all your needs but solar energy might not be such a good investment if you live in an area where the sky is usually filled with clouds.
Free Hot Water with DIY Solar Batch Water Heater Pt 2.
When planning your panels, take into consideration the shadows that nearby trees may pass over the area. Solar panels usually need to be mounted high on the roof, in a location that is exposed to the sun for the longest period of time. However, what seems like a great spot may be covered in shade for a certain period of the day.
Before signing any agreement for installation of solar energy products, get at least three estimates. Once the estimates are in your hand, read each one carefully to ensure that the installation is up to your standards. Each estimate should include a time frame of completion, a list of materials and the estimated amount of labor charged.