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But trying to find panels online to buy is a minefield: I get loads of companies trying to sell me complete packages , and I get all sorts "shops" selling panels with so many different names and claimed outputs , I really don't know where to start. These things are obviously imported, mainly from the far east and I know quality can vary enormously, so I need a reputable supplier who will sell me them with some sort guarantee.There must be plenty, but how to sort the wheat from the chaff, as it were?
I bought a bunch off eBay for my camper van and a friend's horse box, 500W on the camper and 250W on the HB, still going strong 3 years later, these were £60 each second hand 'Canada Solar' brand 250W each. I have no idea why they were being removed but one of the guys selling was an installer who said that it was 'surplus'.
Is that the same "surplus" as the fella (and his wee donkey) who offered to resurface my driveway? I'd better check my roof!
On a related note, I see that various online sellers in the UK are selling new panels in the 305W (£77) to 475W (£140) range. Given old 250W panels are liable to be a bit knackered and old and still running at £50 or £60, I reckon a new panel is actually better value as you only need one not two for the same output, pretty much. Just saying :)
I have been involved in photovoltaics for 16 years. I have installed many off grid systems. The one and only supplier who has been a specialist supplier for off grid components since 1984 is WIND AND SUN Leominister they don't sell cheap stuff only the best