Ask your solar panel vendor about the certifications they have and about the testing of the panels you are interested in. You might qualified for some rebates offered by the government if you go through a certified vendor and choose panels that have received certifications too. Besides, this is a good way to make sure you are getting a quality product.
When purchasing a solar energy system, make sure that you read the manufacturer's warranty carefully. This is a very expensive item, and you want to know that you will be able to get a replacement in the event something happens to it. You should purchase an extended warranty if the one that is offered is very limited.
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.
If you are concerned about the environment, solar energy is the smart choice for you. The sun is a renewable resource, so you are not deteriorating the environment. Do your part to use less fossil fuels by using solar energy instead.