Roy Bridge PV Case Study 


Technology Installed (Include Manufacturer and Model if possible):

Photovoltaics (PV), Canadian Solar CS6P-250M (monocrystalline) with Solar Boost, Fronius inverter IG TL 3.6


Generating Capacity (kW):

4kWp (16 x 250W panels, 1638mm x 982mm))


Property Type and Size 

 (Example 3 bedroom mid-terrace, stone built):

5 Bedroom 1.5 storey, timber frame


Installation Date: 

September 2014


What is it replacing 



Who Installed it? 

Cairngorm Solar Panels part of Cairngorm Group


Installation Cost: 

£7,150 inc VAT


Grant/Funding Received/Will Receive (FiTs / RHI etc.): 

Receive FIT on total generation and 50% of generation as exported electricity. Total generation in first 17 months (2 winters and a poor summer) – 3,668kWh


Any issues encountered? 

Fronius inverter failed, after approx. 12 months but replaced within the week at no cost. Solar boost transmitter failed after about 18 months – again replaced within the week at no extra cost.


Time from planning to installation? 

3 months


General Advice for those interested: 

Well worth doing particularly if you have a hot water tank with an immersion heater to which any excess generated electricity can be directed. The PV installation provided all our hot water last summer from about April to late October 2015 (despite the very poor summer weather).  Approximately 1,452kWh of electricity has gone into hot water in the first 17 months.  Still get benefit to hot water through the winter especially on sunny days but it doesn’t have to be clear skies to get generation.


Would you recommend the technology? 


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