Cost and Maintenance
Cost
The cost of a PV system would largely depend on the installed capacity, however on average one would anticipate paying between £4000 & £8000/kWp installed cost. Please note that this is only an estimate as there are many building factors that affect the cost of the quote. We always recommend that if someone is unsure about the first quote they receive that they should then obtain another quote from another member of the Association.
Maintenance
PV has a proven working life of 45 years plus and modules typically come with a 25 year manufacturers warranty. These systems require little maintenance as rain water should keep the panel surface sufficiently clean. Occasional additional cleaning may be required from time to time, particularly if the panels are located near a large tree (sap & birds!)