RDA Solar Panels

Solar panels are made up of silicon based photovoltaic (PV) cells which generate DC electricity from sunlight. The PV cells are linked together within the solar panel and connected to other panels using cables. The amount of solar energy generated depends on the orientation and tilt angle of the panels, the efficiency of the panels, plus any losses due to dirt, shading and ambient temperature. There are three major types of solar panels: monocrystalline, polycrystalline and thin-film.

Monocrystalline cells have the highest power capacity due to their single-crystal construction that allows a higher output rating in a smaller package. Most monocrystalline panels can generate up to 300 W of power capacity, however, the smaller footprint comes at a higher price. Polycrystalline panels produce between 240 to 300 W of power. They are constructed of multiple silicon fragments that are melted and poured into a square mold. This results in less efficiency in terms of space and energy conversion compared to monocrystalline panels, however they are more cost-effective. Thin-film panels, unlike crystalline panels that use silicon, are composed of materials such as, Cadmium telluride, Amorphous silicon or Copper indium gallium selenide. Each panel has very fine layers that are thin enough to be flexible and do not require a frame backing, making them lighter and easier to install. Thin-film panels come in various sizes to suit specific needs, however, they are not as efficient as crystalline panels.