I do - As I said, I am not defending them! Please don't think I want to see this kind of selling in the industry because I absolutely do not. The figures of 41K profit are clearly wildly inaccurate for a 4kW system, if that is enough to break RECC/MCS rules how is it they have grown to be selling more systems than pretty much any other installer in the country? Is it purely because they (MCS) are not interested or have they played the system somehow?
MCS and RECC have minimal teeth, and there's no specific guidance on payback calcs other than they have to be able to justify it and provide the assumptions used, or some such thing.
Unfortunately it's not something that anyone wants to push to hard on otherwise we'll end up all having to follow the DECC / EST / STA line on thing where they don't account for inflation at all in the payback figures, which is a ridiculous way of assessing the payback for domestic customers.
If Julian or anyone else can get me an example of their payback calcs, if they are taking the **** via the inflation thing, then I could try raising it with the MCS steering group next time, but it is a proper can of worms to be opening.
If they're just blatantly overestimating on performance then that's a lot more straightforward to sort out.
ps - as to how they got so big, well if they're able to offer a much greater return on investment than the rest of us, that's obviously a bit of an advantage... plus they probably just have a big sales team. 50 a week's only 10 sales guys, and if they're doing minimal design work then it's probably pretty straightforward. Obviously they'll end up with underperforming systems where there's shading, systems that won't fit etc etc but these companies work to different rules on that sort of thing - they have the profit margins to cover a few balls ups, and are reliant on the sales team to generate the work, rather than word of mouth, so bad feedback etc doesn't really affect them as much.
I could be wrong, maybe they're really doing everything by the book, but not from the sounds of this thread.... from what you say, I suspect they may have teamed up with a sales team a couple of years back, to move them from a decent company to a sales led company just servicing a big sales team. We had similar approaches around that time and knocked them back as it's not how we want to operate, but I can well see why someone in 2012 might have decided to take the money rather than going bust as half the industry did.