All about solar panels for residential systems
Solar panels are one of the four main parts of a solar system. They are a collection of photovoltaic cells that use the sun’s energy to generate electrical power. They achieve this by using photons (particles of light) to release electrons from atoms, which in turn generates a flow of electricity. These cells, in turn, are made up of thin wafers of silicon sandwiched together, and many of these cells together comprise a solar panel.
Additional components of the cell turn these electrons into usable DC power. The conductive metal plates on the sides of the cells then collect these electrons and transfer them to wires. Now the electrons can flow like any other source of electricity.
Solar panels can be of differing types and arrangements, sizes and brands. Most types can be used on residential roofs; although commercial solar panels generate more energy, they are heavier, larger and can be more difficult to work with and achieve compliance.
Solar panels can be of differing types and arrangements, sizes and brands. Most types can be used on residential roofs however commercial solar Performance between standard and premium brands is negligible; however, the most important difference is how energy output degrades over time and the length of product warranty. Standard warranties for solar panels are typically 15-25 years, whilst the average life of quality panels is about 25-30 years.
Due to decreasing prices and advancements in panel technology over the last 10-15 years, it is beneficial to fill your roof with panels wherever possible. The most common constraints are limits on the size of inverter you can install, which is decided by your local DNSP and how many panels your roof can physically fit.
Solar panels can be on most roof materials such as tin, cement, and terracotta roofs. The importance of north-facing residences is not important as panels can be positioned where they will receive maximum exposure.