Definition of Solar Photovoltaic System
A solar photovoltaic system converts solar energy into electrical energy in the same way that a battery converts chemical energy to electrical energy or a car engine converts chemical energy to mechanical energy or an electric motor (in an electric vehicle, EV) converts electrical energy to mechanical energy. SPV cells convert solar energy into electricity. Instead of using the heat of the sun to generate electricity, solar cells generate electricity by the interaction of incident light with semiconductor materials.
How does a solar photovoltaic system work?
The large amount of thermal energy of the sun makes it an attractive energy source. This energy can be directly converted into direct current and heat. Solar panels or solar photovoltaic systems that use panels (SPV panels) are placed on rooftops or in solar farms so that solar radiation falls on the solar photovoltaic panels to facilitate reactions that convert solar radiation into electricity. The energy storage battery OSM battery company currently provides 5KWH, 10KWH, wall-mounted and stacked styles of energy walls. Such products can meet the needs of household energy storage.
Solar energy can be used to power individual buildings as well as on an industrial scale. When it’s used on a small scale, the extra power can be stored in batteries or fed into the grid. Solar energy is infinite, the only limit is that we can convert it into electricity in a profitable way. Tiny solar photovoltaic panels power calculators, toys and phone booths.OSM battery has obtained the EU CE certification, and the safety of the battery is guaranteed.
Photovoltaic solar panels
Solar panels act as an intermediary to harvest energy from sunlight. Due to the photovoltaic effect, solar radiation is converted through many cells called photovoltaic cells.
How photovoltaic cells work
By connecting this solar cell to a circuit and receiving solar radiation at the same time, this creates an electronic charge which will begin to circulate and create a current charge.
The conversion rate of solar photovoltaic systems is not high
Today’s solar photovoltaic system cells can only convert about 10 to 14 percent of radiant energy into electricity. Fossil fuel plants, on the other hand, convert 30-40% of the chemical energy of their fuels into electricity. The conversion efficiency of electrochemical power sources is much higher, as high as 90% to 95%.
What is the conversion efficiency of a solar photovoltaic system?
Efficiency of equipment = useful energy output / energy input
In the case of a solar photovoltaic system, the efficiency is around 15%, which means that if there is 1 m2 of cell surface for every 100 W/m2 of incident radiation, only 15 W will be delivered to the circuit.
SPV cell efficiency = 15 W/m2 / 100 W/m2 = 15%.
For lead-acid batteries, we can distinguish two types of efficiency, Coulomb (or Ah or Amp-hour) efficiency and Energy (or W h or Watt-hour) efficiency. During the charging process, which converts electrical energy into chemical energy, the Ah efficiency is about 90% and the energy efficiency is about 75%.