2018/05/21

 

 

 

      _cc781905-5cde-3194-bb3d_136bad5 It is an aspect that photovoltaic power station owners are concerned about. Transmission losses caused by soiled panels can vary widely, depending on the exact weather conditions, local terrain, angle of inclination, and even the type of panels installed. The industry has become increasingly aware of the impact of pollution on the internal rate of return (IRR) of power plant owners and has increasingly adopted a more scientific and innovative approach, not only through more efficient cleaning methods for components The impact of contamination, antifouling coatings have also been improved, and more thoughtful installation practices have been implemented.

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          _cc781905-5cde-3194-bb3b-136bad5 Dirty solar modules are easy: fill a bucket with water, grab a rag, and scrub by hand. This practice is still commonplace in many parts of the world—a shockingly manual, unskilled maintenance for a facility containing incredibly sophisticated PV modules. In many of the world's poorest underdeveloped countries, the solar industry is gaining more and more attention. While labor costs are low in places like India, Africa and Southeast Asia, cleaning crews can still be a significant financial expense, especially since solar parks in these emerging regions are very large and often located in remote locations. DSM of the Netherlands (DSM), a company that makes solar module backsheets and anti-reflective coatings, launched a new high-performance anti-fouling coating last year that it said could not only help modules perform 1.3% better than standard anti-reflective coatings There are also many indirect maintenance savings, such as a reduction in the number of cleaning cycles, which reduces labor and consumables usage.

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      _cc781905-5cde-3194-bbD3b-136bad5 _ _     _cc781905-5cde-3194-bbD3b-136bad5 , proven to improve the IRR of solar projects. After three years of development and indoor and outdoor validation testing, the paint was tested at TÜVSÜD's site in Dunhuang, China. In an example of calculating the impact of coatings, DSM assumed a 10 MW solar farm in a desert-like environment with a daily pollution rate of 0.5% (i.e. 0.5% of the module surface would generate dust per day), when After the components were treated with antifouling paint, the contamination rate was effectively reduced by 50%. According to the Dutch company, based on an average cleaning cost of $500/MW and an assumed electricity price of $0.08/kWh, the power plant owner could achieve a 3.8% increase in EBITDA profit due to a 1.7% increase in power generation, And cleaning costs are reduced by about 30%.