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The harm of bird droppings on photovoltaic panels

Solar Power and Birds | Audubon

Audubon strongly supports properly sited photovoltaic solar power that avoids, minimizes, or mitigates impacts to birds and their habitat. As with all forms of renewable energy, we work with Congress and wildlife

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The harm of bird droppings on photovoltaic panels [PDF]

6 FAQs about [The harm of bird droppings on photovoltaic panels]

Do bird droppings blight solar panels?

That is, until it’s too late. As Clean Solar Solutions have been swanning around on our solar panel cleaning trips, we have been shocked by what we have seen as bird droppings blight solar panels, in some cases to the point of rendering a whole solar array virtually useless.

Do bird droppings affect the performance of solar PV cells?

Bird droppings can significantly impact the performance of solar PV cells, reducing the output power by up to ≈23.8% (at 0° tilt angle/horizontal) in the month of March, according to this research.

Are bird droppings a contaminant on solar panels?

Heavy reference to bird droppings as a contaminant on solar panels. Reference to solar panels being attractive to birds If relevant, key points due to heat. “the challenging problem is how to clean the bird droppings from the arrays when rain is infrequent during the summer months while the bird are attracted to the warmth of the panels”.

Do birds affect solar panel efficiency?

Extensive research has highlighted the significant impact of birds, particularly their droppings, on solar panel efficiency. The accumulation of bird droppings obstructs sunlight from reaching photovoltaic cells, resulting in reduced electricity generation.

Do ground mounted solar panels suffer from bird droppings?

Ground mounted solar panels make up the bulk of the solar panels in the UK. Thankfully though, unless ground mounted solar farms are located close to the coast, they do not suffer as badly from bird droppings as do roof mounted or floating solar panels.

Do solar PV developments affect bird collision risk?

No peer reviewed experimental scientific evidence exists relating solely to the ecological impacts of solar PV developments. Some scientific and grey literature data, based upon carcass searches around solar PV developments suggests that bird collision risk from solar panels is very low.

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