How Solar Panels Make Electricity

Unlike fossil fuels solar energy is an infinitely renewable energy source.

How solar panels make electricity.

Solar panels contain cells of semiconductive material usually silicon usually encased in a metallic frame and tempered glass. Energy from the array is sent through an inverter which transforms the initial direct electrical current into the alternating electrical current required to power human made structures. Solar panels use photovoltaic cells to produce electricity according to the united states department of energy. There are of course many elements which contribute to a polycrystalline solar cells ability to generate electricity however phosphorus diffusion is a major ingredient in transforming a polycrystalline silicon wafer to become an electric component capable of generating electricity for use in solar panels.

How do solar panels make electricity. To figure out how many kilowatt hours kwh your solar panel system puts out per year you need to multiply the size of your system in kw dc times the 8 derate factor times. Ac energy then flows through the home s electrical panel and is distributed accordingly. There are many factors which affect how well the cells do that.

To understand this process further let s look at the solar energy components that make up a complete solar power system. This all happens as light hits a unit called a photovoltaic cell. When this occurs a flow of electricity is generated and this electricity is harnessed and preserved as electrical energy. In most solar systems solar panels are placed on the roof.

Eventually fossil fuels a non renewable energy source will be depleted and the world will have to turn toward renewable energy sources like solar and wind power. On average your solar system is going to lose some energy due to wiring power inverter efficiency so you actually end up using 80 of your solar system s capacity. When subject to sunlight photovoltaic cells create a flow of electric charge inside the solar panel due to the photoelectric effect. A south facing installation will.

Sunlight is converted directly into electricity by each solar cell in the panels. Solar power systems like the one on our roof produce power directly from the sun. Solar panels work by absorbing sunlight with photovoltaic cells generating direct current dc energy and then converting it to usable alternating current ac energy with the help of inverter technology. Solar panels work by allowing particles of light called photons to knock electrons from their atomic orbitals.

An ideal site will have no shade on the panels especially during the prime sunlight hours of 9 a m.