in the scorching sunlight, the sun emits a ray that has the energy equivalent of 1,000 watts of electricity per square meter of the earth’s surface. What does it mean? Electricity is free. If we could collect solar energy and convert it into electricity, the monthly cost of electricity bills would drop dramatically – or completely free – because the electricity requirement could be self-sufficient. But is it that easy? In the meantime, you may also need to check out the reliable 5kw solar system to be installed in your home if you’re interested.
As a clean and renewable energy source, the electrical energy from the sun will continue to be generated as long as your area gets sufficient irradiation. All it takes is some equipment and technology to ‘capture’ and turn it into electrical energy, known as solar panels.
Please remember, when we talk about “solar panels”, there are two possible notions:
1. Photovoltaic modules (solar photovoltaic modules) that use solar cells to convert sunlight into electricity, or
2. Solar thermal collector, whose working principle collects heat from solar electromagnetic radiation either a flat plate collector in a household water heater installation, or more complex using a specially arranged reflector circuit (parabolic model, pyramid, power tower, etc.) focusing sunlight to a point to heat water or other fluids, whose steam is then used for power generation.
This article discusses the first solar panel technology, the solar photovoltaic (PV) module, which we simply call the solar cells only.
Solar cells that we usually see on a calculator, a solar panel on the roof of a house, or on a communications satellite, are photovoltaic modules. The design of solar cells was first made by Charles Fritts in 1883 by coating the semiconductor Selenium with a layer of ultra-thin gold. This first generation solar cell only has an efficiency level of 1 percent.
To improve efficiency, modern PV cells are made with special materials, including silicon. In 1954, Darryl Chapin and Cal Fuller, two scientists from Bell Labs, found that the dyed silicone material with some mixers would produce a material that is very sensitive to light. The invention produces the first solar cells that can be used practically (applicable for everyday use), with the efficiency of converting sunlight to electricity by about six percent.
The new material inventory momentum with better levels of efficiency by Darryl Chapin and Cal Fuller led some countries to fund funding for research aimed at developing solar cell technology. One result is an increase in conversion efficiency up to 15 percent. The first use of solar panels for the benefit of the community directly is in Americus, a rural and isolated small town in the state of Georgia. The power plant is used for energy sources for local telephone relay systems. The program is successful and runs smoothly for years.