It's a misconception that solar panels need a hot summer's day to perform at their best. The panels work from sunlight and convert this sunlight into electricity by using photovoltaic cells (PV). The panels or cells are made up of two silicon layers, which are divided into individual cells. One layer has a positive charge, and the second layer has a negative charge. As the sunlight (photons) hits the panel and passes through, it releases electrons and produces an electric charge. This direct current (DC) flows through the circuit and is sent to the inverter on the system, which then converts the charge from DC to AC (alternating current). This is how we can then use the power converted in our homes, properties, and businesses.
There are three main types of solar panels: monocrystalline cells, polycrystalline cells, and thin-film amorphous silicon cells. These all vary in efficiency and cost, with monocrystalline being the most popular in today's market. These are the darker-looking panels you see and have efficiency ratings of above 20%. Polycrystalline panels have a more speckled blue look to them with an efficiency of around 15%. They also have a shorter lifespan. Thin-film cell solar panels are much cheaper and easier to produce, with only 7% efficiency.
Domestic and commercial Exeter electrician, specialising in Solar Panels Exeter - covering Devon and the South West – contact us today for a free quote and site visit for your next project.
