I've installed two systems. The first was offered by an energy retailer and while the system worked fine it was apparent that the components and panels were, to put it politely, not the best available. The one thing I didn't like about the first system was how quickly the solar panels performance diminished. The second system I put a lot more thought into it. Consequently I engaged a company that are considered experts in solar system installations. They were able to offer me a range of panel ...