Before making a choice on how many solar panels you use make a list of all the electrical appliances you use and the wattage and hours utilized by each one. This will be helpful in determining how much solar power you will need. No matter if you decide to install the equipment yourself or have someone else do it, this information will help your choices.
You should consider switching to solar power if your home receives 5 hours of sun per day and you experience high energy rates. In this case, your investment in purchase and installation will be well worth it.
http://greenpowerscience.com/ This is a very simple trough design you can run a 100′ trough for less than $500.