It's not really going to be a deal breaker IMO. You wouldn't install a system to sell a house, so even a couple of years of running, will leave around 5k attached to your roof. If someone loves the house they will buy it regardless.
I think the 14.38p per unit is only valid until the end of the year, when it will fall again. I got a few quotes in September and then held off doing anything. The impression I got was;
1 Best Option - find a small independent who really knows what they are talking about and can demonstrate a...