Solar panels have become one of the most popular forms of renewable energy, in part because they are so easy to install in your own home. This doesn’t mean everybody knows exactly how they work, so you may want to understand them a little better if you are considering adding them to your roof or garden.
How solar panels work
At their most basic, solar panels are a way of converting light energy from the sun into electricity, the energy that powers your home. A solar panel is formed of many cells, which are usually silicon or another semiconducting material. Energy flows through these cells whenever they are exposed to daylight, even on a cloudy day without direct sun. On a bright day, more electricity will be generated – as much as 355 watts per panel.
The average number of panels per system is about ten. For domestic systems, an inverter is used to convert the direct current electricity into alternative current, which is the kind found in most homes. Any extra energy not needed in the home can be transferred to the grid to be used elsewhere. You may even earn money for doing this.
Their benefits
You can choose solar panel installation Clevedon quite easily thanks to professional installers such as https://redbridgeandsons.co.uk/solar-pv-panels/solar-panel-installers-clevedon. It means generating your own energy from a free and limitless resource, namely the sun. You do not have to rely on fossil fuels or external suppliers, you reduce your environmental impact, and you could save or even earn money.
Installing solar panels is a way to provide your home with cheap, clean energy that protects the climate and your household. This is why so many people are turning to them as a relatively simple and affordable green option.
Why panels lose output over time
Solar panels spend their whole working life outdoors. They are built to withstand heat, rain, snow and wind, but like any material they have limits, and their output slowly declines over the years. How quickly that happens depends on the climate, the materials and the way the panels were made.
Most panels today use silicon. Silicon modules degrade through environmental stress, voltage fluctuations and mechanical strain, and the wafers themselves are rigid and fairly brittle. Humidity, ultraviolet light and temperature are the main environmental causes of damage, which is why panels in hot, humid places tend to degrade fastest and those in more moderate climates hold up better. As extreme weather becomes more frequent, this matters more.
The warranty is a useful guide when deciding whether to install panels. Most manufacturers offer 25 to 30 years, guaranteeing that power output will not fall by more than 20 percent over that time, which gives a clear picture of the performance you can expect.