Frequently Asked Questions – FAQ’s

Is my roof suitable for solar ?

A pitched or flat roof is suitable as long as it is within 90 degrees of south facing.  Angled ‘A’ frames can be installed to flat roofs without fixing through the membrane to allow panels to be installed to the correct angle.

How long will installation take ?

Installation for solar PV and solar thermal typically takes 2-3 days, depending on the size of installation.  Disruption will be kept to a minimum and the site will be left clean and tidy.  Scaffolding will usually be required and is included in the installation price (subject to site survey). 

Do I need planning permission ?

No, as long as the solar PV or solar thermal is installed on the roof of your property.  It would only be required if you are in a conservation area, are installing on a listed building or installing solar panels away from your property. 

What is the typical payback time ?

The typical payback time would be in approximately 8-12 years, after this time the remaing 13-17 years would be profit (this does not allow for future energy price increases).  Which would mean payback time would be reduced.

Is there any ongoing maintenance required ?

Maintenance is minimal.  Solar panels are guaranteed by the manufacturer for 10 years based on performance of 90% of its original power output, and up to 25 years after installation based on a power output of 80%.  Solar PV has no moving parts which means this is a great renewable energy option.  There are solar PV installations approximately 40 years old that are still going strong!!.  Inverters are guaranteed by the manufacturer for 5 years, with an option to extend for up to 10 years. 

Will my property value increase with the installation of solar panels ?

Study’s have shown people will pay up to £10,000 more for a property installed with renewable energy, i.e. solar PV.  Your property will be more attractive to a potential purchaser as it will have lower running costs.

What is the difference between solar PV and solar thermal ?

Solar PV panels produce electricity which when linked to the national grid through and inverter provide you with approximately 50% saving on your electricity bill and a yearly income of around £1,000. 
Solar thermal panels are used to heat the water in your hot water cylinder and can provide you with approximately 60% of your yearly hot water needs.