Solar Panel Maintenance and Cleaning

Why service your solar PV system?

All electrical systems should be inspected and tested periodically, and solar PV and battery storage systems are no different.

Maintain optimal system performance.

Achieve anticipated financial returns.

Avoid fire risks.

Ensure effective earthing.

Check for damage to cable and connectors.

Ensure compliance with insurance policy.

As a minimum we recommend testing and inspection should be undertaken once every two years by a qualified electrician, trained in the relevant technology.

We offer a solar panel service on a one-off basis, or as part of a more comprehensive package with on-going support. Our prices start from £300 inc. VAT for a single inverter, single phase system up to 10kWp. Please email support@spiritenergy.co.uk for a personalised quotation.

In addition to one-off servicing and / or cleaning, we offer the following packages with a 2-5 year term:

	Panel cleaning only	Electrical service only	Workmanship warranty extension only
Panel cleaning
Panel cleaning every two years. Where possible we will clean the panels from the ground using a low-pressure washer and a long lance. In a small number of cases we may need to use a cherry picker.	✓
Inspection and testing
Site inspection every two years		✓
Scope of inspection and testing visit
Visual inspection from ground level of modules, mounting system, DC cable		✓
Inspection and testing of inverters		✓
AC electrical testing of solar PV circuit		✓
String voltage checks		✓
Inspection of protection devices		✓
Inspection of accessible connections		✓
Full written report		✓
Workmanship warranty extension
Free telephone support working hours			✓
Guaranteed response times			✓
Extension of Spirit workmanship warranty. No call out fee or labour charges in respect of investigation of system fault caused by our workmanship, inverter or monitoring.			✓
Free liaison with manufacturer for spares under warranty. Labour costs for installation included.			✓
Assigned account manager	✓	✓	✓
Cost (inc. VAT @ 20%)
Per month (on direct debit)	From £10	From £13	From £10
Per year	From £120	From £150	From £120

Why clean your solar panels?

On a sloping array panels will be cleaned by the rain as the glass on the panels is self-cleaning. However, if your panels are in an area of high debris or pollution, or if they are installed on a flat roof, we recommend the panels should be manually cleaned every year or two.

Where possible we will clean the panels from the ground using deionised water, a low-pressure washer and a long lance. In some cases we will use the harness lines already in place on the roof. In other cases we will use a cherry picker.

A study by Google on their system in California suggested that it’s worth cleaning flat roof panels at least once a year at the end of winter; the yield on its flat roof system in particular increased by 36%.

We offer module cleaning for any solar system within our catchment area below - please email support@spiritenergy.co.uk for a personalised quotation.