Solar street light panels life how many time

Not of solar street lamps, see thin solar panels will often ask solar panels fragile? Solar street lamps factory took today how long have you know about the battery life of solar street light? Affected by what again? Solar street lamps

not of solar street lamps, see thin solar panels will often ask solar panels fragile? Solar street lamps factory took today how long have you know about the battery life of solar street light? Affected by what again?

solar street light panels life how long?

solar panel has a long life cycle, the general can guarantee the stability of more than 20 years of life.

there are a few examples that this guarantee is credible.

somewhere in Tibet in 1987 to build pv site using the panels, the attenuation last year is 9%; A photovoltaic power station in gansu province 26 years ago to use panels, attenuation by 16%; Somewhere in shenyang station panels, 23 years attenuation by 6%, the measured data tells us that the service life of the main equipment of solar power panels set for 30 years. 30 years later will be how, also need the facts, because it is a new technology.

the life of the pv modules is decided by its power generation efficiency, and the combination of PN junction and the purity of silicon determines the solar panels generate electricity under the same light intensity, with the passage of time, the p-n junction can rupture, constantly, efficiency will be falling, 15 years after the conversion efficiency of 90% above, 25 years later will fall to about 85%, so the life of the photovoltaic modules basic in more than 20 years.

panels, solar street lamps life affected by what?

was mainly affected by the following two aspects:

1. Hot spot effect

hot spot effect refers to the normal work of the battery components at one point, a single cell is covered with small objects. Result in this monomer battery can produce electric current. The single cell in the battery components can as a diode of P - which is similar N junction structure with reverse avalanche breakdown phenomenon, according to the kirchhoff's law of electric current and voltage, when the obscured from single cells in a current less than the current of the circuit, the monomer battery with negative pressure and load. And other single cell in the form of heat consumption of energy.

production technology of hot spot effect with battery components also has a lot to do. Due to the production level of defects, often lead to single cell internal resistance is not uniform. Uneven internal resistance of battery piece of easy to produce hot spot phenomenon.

hot spot effect on cell damage is very big. Light burned cell, serious can cause entire battery components.

2.

temperature the influence of environmental factors, the radiation intensity of light, such as prescribed by ritual law and ice load will also affect battery life.

that is today widely the manufacturers to introduce the solar street lamps, solar street light panels and factors affecting the life of the life.

solar panels is very longevity, usually won't have what factors can affect the life.