Low prices can be very attractive but keep in mind that solar panels and their installation is not cheap. If a vendor has extremely low prices, you are probably getting low quality equipment or even second hand equipment. It is best to invest in quality solar panels and hire a trustworthy contractor to install them.
As you now know, there are a number of factors to consider when deciding whether or not to install solar power in your home. Use the information provided in the article above to help you make an informed decision. After all, you won't be helping the environment if you are using your solar power efficiently.
The best time to incorporate solar power into the design of a home or building is in the initial construction. Windows are best facing south to let maximum sunlight (hence greenhouse heat) in during the winter. Likewise, avoid windows facing directly into the summertime sun to keep things cooler, so less power is needed for fans or air conditioning. The maximum roof space, however, should always get sunlight exposure.