Benefits of cleaning your solar panels

So you have had solar panels for a few years now, and they are generating you a great income and great return on your investment. However if your panels get dirty they are less efficient and this is going to produce a lower output and so give you a lower FiT income as well as less electricity to use.
Dirty solar panels can cut up to 20% off of your investment, which if you have a 4kWp system earning you £1,800 a year means a loss of £360 a year in terms of income on top of the savings on your electricity bill.
Cleaning your panels is quick and easy and should be undertaken once a year to keep your system in tip top condition.