It's better to get a solar system when you own a home. Don't overextend! If you have a mortgage and you need to finance your solar energy system, you could endanger your financial security.
A sun tracker will increase your ability to capture solar energy. Through the tracker, your panels will constantly adjust to maintain maximum exposure to the sun. Though they cost more than fixed panels, the boost in energy production makes them worthwhile.
Hot Sun Industries, maker of the Powerstrip solar pool heating system explains basic system operation as well as some plumbing guidelines.
Avoid stepping on solar panels, unless you really need to. These can cost you quite a bit of money, so they need to be kept in great condition. The most fragile part is typically the end of each panel, so avoid that area.