Today, there are a lot of payment options to buy a solar system. There are three most frequent options. First, you can pay with cash. This will let you purchase the panels at once and conclude a contract. The second option is to create a loan. You may loan your money to pay and give them back later. Another payment method is to lease a solar system. This is like renting them. You lease the panels from the company for some time. You pay for the rent every month. It is a good option for those who cannot afford to buy the panels by themselves.