How do solar cells generate electricity?
Solar cells use the Photovoltaic effect to generate electricity. When sunlight hits the surface of a “Photovoltaic” (PV) panel part of the light passes through the panel, starting a flow of electricity. Solar (PV) panels generate direct current (DC) power that can be used for charging batteries, running loads direct or generating mains quality, Alternated Current (AC) power via an inverter. Solar panels generally consist of 36 cells and provide a nominal Voltage of 12 Volts. Solar panels vary in size from as small 1 Watt to as large as 200Watts The material used for making a solar panel is silicon, one of the most abundant elements on Earth.
Photovoltaics or PV for short can be thought of as a direct current (DC) generator powered by the sun. When light photons of sufficient energy strike a solar cell, they knock electrons free in the silicon crystal structure forcing them through an external circuit (battery or direct DC load), and then returning them to the other side of the solar cell to start the process all over again. The voltage output from a single crystalline solar cell is about 0.5V with an amperage output that is directly proportional to cell’s surface area (approximately 7A for a 6 inch square multicrystalline solar cell). Typically 30-36 cells are wired in series (+ to -) in each solar module. This produces a solar module with a 12V nominal output (~17V at peak power) that can then be wired in series and/or parallel with other solar modules to form a complete solar array to charge a 12, 24 or 48 volt battery bank. Will solar work in my location? Solar is universal and will work virtually anywhere, however some
A1… Photovoltaics (PV) can be thought of as a direct current (DC) generator powered by the sun. When light photons of sufficient energy strike a solar cell, they knock electrons free in the silicon crystal structure forcing them through an external circuit (battery, inverter or direct DC load), and then returning them to the other side of the solar cell to start the process all over again.
