It's a small commercial swimming pool rather than a luxury private one - it's part of a farm diversification project. Problem is it's competing with the cost of biomass which will save more, quicker and then he'll have the cash for pv - that's what I've advised him to do, along with voltage optimisers for the pumps. He's got other projects he's doing as well so he's having to prioritise.
I'm pleased he's now got some decent information to make his decision with even if it means we don't get work from it. I haven't done the full quote but it probably does pay off with a low interest loan but to as quickly as biomass - he's cutting his oil bills by 40% even without the RHI.
Gavin - I'll have you know we had a whole hour of sunshine today! It was a record though lol.
Biomass for the swimming pool is a no-brainer, the (Commercial) RHI he'll get for that will easily pay for it, on top of that he could get paid to heat the homes as well. (Glad we diversified when we did) He should / could also consider solar thermal for the pool.