Efficiency Of A Solar Pv Panel

Iconic solar panel manufacturers of monocrystalline technologies are sunpower lg and jinkosolar.

Efficiency of a solar pv panel.

Improving this conversion efficiency is a key goal of research and helps make pv technologies cost competitive with conventional sources of energy. The efficiency of the solar cells used in a photovoltaic system in combination with latitude and climate determines the annual energy output of the system. Remarkable panel manufacturers of this technology are gcl trina solar and kyocera. The conversion efficiency of a photovoltaic pv cell or solar cell is the percentage of the solar energy shining on a pv device that is converted into usable electricity.

The average efficiency of solar panels falls between the 17 to 19 percent efficiency range. High quality solar panels can exceed 22 efficiency in some cases and almost reach 23 but the majority of photovoltaic panels available are not above 20 efficiency. The highest efficiency solar panels on the market today can reach almost 23 percent efficiency. To calculate the solar panel efficiency you need to divide the wattage per unit area pmax total area in sq m of the solar module by the stc irradiance value 1000w sq m.

For the generation of electricity by the cell it must absorb the energy of the photon. The absorption depends on the energy of the photon and the band gap energy of the solar semiconductor material and it is expressed in electron volt ev. For example a solar panel with 20 efficiency and an area of 1 m 2 will produce 200 kwh yr at standard test conditions but it can produce more when the sun is high in the sky and will produce less in cloudy conditions or when the sun is low in the sky. The sunlight is a group of photons having a finite amount of energy.

Working of a solar cell. This is the simplest way to get any solar pv module s efficiency. On the other hand polycrystalline solar panels have average efficiency values between 12 and 18 and a lifespan of 23 27 years.