Solar Panel Cleaning and System Health Check

As part of the TGG service we are able to offer solar panel cleaning, system maintenance and performance health check to help make sure you are getting the most out of your system.

Solar Panel Cleaning Using Purified Water

Although solar PV systems are low maintenance, having dirty solar panels could reduce their output by between 25 and 50%. Having them cleaned regularly will make sure you are getting the most out of your solar PV system.


• Solar Panel Cleaning means you are getting the maximum electricity output possible 
• Solar Panel Cleaning you will generate more through FiTs than it costs to have your solar panels cleaned.
• Having regular solar panel cleaning will maintain your manufacturers (normally 25 year) warranty.

We only use purified water when cleaning solar panels. If detergents or soaps are used a sticky layer is left on the panels which actually attracts dirt and dust and will lead to your solar panels quickly getting dirty again. Purified water leaves no residue meaning your recently cleaned solar panels will stay cleaner for longer!

Getting Your Solar Panels Super Clean One of the reasons for using purified water is that it wants to return to it impure state. This means it literally sucks dirt and dust off the panels. Anything more substantial is removed with our super soft brush heads.

Taking Care of Your Investment Solar PV Modules need to be treated reasonably gently. You would not want to stand, lean, or put much pressure on them. We use a telescopic, pump fed, super soft brush washing system. Normally we can operate from ground level, however some solar pv installations are more tricky to get to and we may use ladders or tower scaffolding. Although it may seem a good idea to pressure wash the panels for a quick result, we know that this can damage the panels and even remove the protective coating applied to them.

Solar PV System Maitenance Package With Performance and Health Check

We recommend that PV systems are checked and maintained at least once a year (much like a burglar or fire alarm system) to ensure everything is as it should be.

What We Include

• Check module brackets on roof (tighten if needed)
• Check DC voltage to ensure modules are all performing correctly
• Take irradiance reading against amps (A)
• Check AC voltage
• Update inverter software (if required)
• Download data from inverter (if possible)
• Visual inspection of all electric cabling
• A certificate of completion will be produced showing all collected data.

Do You Have A Faulty Solar System?

During the rush to get systems installed in November and December we have discovered a number of less than professional companies were installing systems incorrectly. If you feel your solar PV system is not performing corectly or you are concerned about the quality of any aspect of the solar installation please contact us, we are happy to provide free advice and can help put things right if needed.