Cleaning of the Photovoltaic Installations pays off financially.
Who hasn’t noticed the outcome of spring’s first rainfall and the air masses that come towards our country from Africa? For those who have photovoltaic installations and haven’t cleaned them in the past years, a look at their yearly income is enough to convince them of the necessity of cleaning the photovoltaic panels. It is not enough to have clean environmental conditions in the area of the photovoltaic installation. Rain water is soft but never clean. When a surface is exposed to rain, residue builds up. Every time it rains the residue builds up and increases the readily understood decrease in income. Bird droppings or pollen from plants are also tough pollutants. In rural areas, especially those near animal farms, there is often a phenomenon of resistant coating of pollutants because of the gas ammonia, pollen and air bourn dust. Another important role is played by the angle of the surface of the photovoltaic frames. Surfaces with slight inclination need more cleaning. The loss of produced force because of pollutants is often not taken seriously. Based on studies of real trials, to amount of loss can be between 5-20% or even more if local conditions are especially adverse. That is why cleaning is always necessary, the frequency is directly connected to the local conditions of pollution.
|Chart of Loss of Output
Typical characteristics of Photovoltaic Installations 150Kwpwp
|Surface Area Needed / 1KWp||7m3|
|Total Surface Installation||1155m3|
|Total efficiency (Κwh)||225,000KWh|
|Sales Value Electricity (Fit 0,33)||€74,250|
|Estimated Loss from Pollution||5% – 20%|
|Estimated Loss of Revenue||Από 3,712 – έως 14,850€|
|Is the cleaning of the photovoltaic frames necessary?||100%|