Designed for applications for which regular solar panels would look inappropriate, Tegolasolare tiles from Area Industrie Ceramiche are composed of red clay and look like traditional roof tiles. A solar panel consisting of four photovoltaic cells is installed on each tile, and then the tile is installed normally. Panels are connected to create a photovoltaic field, which can cover the roof or be as large or small as needed. The company says 100 tiles can produce 1 kW of energy. The photovoltaic panels are interchangeable and can be integrated with the tile in stages. Damaged panels can be replaced if necessary and more efficient panels can be fitted over time.