Consider a solar powered attic fan if you are not ready to make the full switch to solar energy. This type of fan features sensors that can turn on the fan at a certain temperature. This will remove heat and lower the cost of cooling. A good solar powered attic fan will help cool your house and not cost anything to run.
Keep your solar panels out of the shade. It might seem obvious, but your solar panels do need sun. Make sure that you are not installing them in the shade. Trim back the branches on surrounding trees if you need to. Failing to do so could cost you more than half your energy output.
A video presentation on Solar Energy, strictly on Photovoltaics (PV). These presentation is specifically based on a college project for an Engineering course.
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.