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Solar panels absorb the sunlight as a source of energy to generate electricity or heat.

A photovoltaic (PV) module is a packaged, connect assembly of typically 6x10 photovoltaic solar cells. Photovoltaic modules constitute the photovoltaic array of a photovoltaic system that generates and supplies solar electricity in commercial and residential applications. Each module is rated by its DC output power under standard test conditions (STC), and typically ranges from 100 to 365 Watts (W). The efficiency of a module determines the area of a module given the same rated output – an 8% efficient 230 W module will have twice the area of a 16% efficient 230 W module. There are a few commercially available solar modules that exceed efficiency of 22%[1] and reportedly also exceeding 24%.[2][3] A single solar module can produce only a limited amount of power; most installations contain multiple modules. A photovoltaic system typically includes an array of photovoltaic modules, an inverter, a battery pack for storage, interconnection wiring, and optionally a solar tracking mechanism.

Bird Guards

Solar panels are becoming increasingly common on roofs. Pigeons and other pest birds can cause problems by roosting on the edge of the panel and fouling the surface or nesting behind the panel.

Did you know that bird muck on the solar panels will reduce the output of the panels?

Bird spikes installed around the edge of the panels will prevent birds from using them as a roosting spot. Weldmesh or bird netting can be used to prevent birds from getting behind the solar panels and making nests.



Why clean solar panels?

Solar panels work by allowing light into the solar cells. The more light that hits a panel, the more power it will generate. Due to the upwards angle of solar panels, they are more prone to bird droppings and a build-up of general dust and dirt that does not wash off with just rain. This reduces the amount of light hitting the panel and reduces its output. As the projected energy figures claimed by solar panel manufacturers and installers are based on the optimum performance of clean solar panels, this build-up of dirt can adversely affect the panel’s ability to meet those projections. So it is important to clean solar panels in order to protect and maintain your investment.  Regular solar panel cleaning will also help you to make the most of the government feed-in tariff.

While solar panel cleaning in the UK is relatively new, in other parts of the world solar panel cleaning has been around for a long time.  Early adopters of the technology soon realised that if their solar panels were not cleaned regularly, they would not run at their optimum performance.  There has been study in the U.S. suggesting solar panel cleaning is not necessary in some of their climate, but it is proved that solar panel cleaning is necessary in the UK.

Why Clean Solar Panels - Your Warranty

Some solar panel manufacturers and installation companies have made solar panel cleaning a condition of their warranty. Should you have problems with your solar panels, if you do not have proof of regular solar panel cleaning by professionals, your solar panels may not be covered by the warranty.  We have made a comparison of solar panel warranties and the message is the same, get your solar panels cleaned.

Why Clean Solar Panels - Can It Improve Efficiency?

We have for years now, been monitoring the increases in efficiency that solar panel cleaning can bring.  We frequently see sizeable increases of solar efficiency on agricultural sites, of up to 30%.  This has been proved by clients who have sent readings to prove solar panel cleaning has increased the output and efficiency of their array.  O&M departments of companies that we have cleaned solar