The benefits to going solar are endless for you and the environment. However, before you invest, you should really consider what you are looking for. It is imperative you are aware of the solar panel size you want, because they do vary from small solar panels to large. In addition, depending on your electrical usage, some owners require less panel size and some require more. The best way for the solar company to determine energy usage is by identifying their watt consumption. Many people consume different amounts of voltage, so it is appropriate to have the right amount used for your solar system.