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<blockquote data-quote="f0ster" data-source="post: 7261136" data-attributes="member: 66372"><p>we have installed about 18 container loads of pv over the years and there has not been any panel failures that we know of, quite a few inverters going down after about 5 years of use, panels are quite reliable, they are simple technology and usually do what they are supposed to, it is the electronics you add to them that gives failure, as mentioned above if you have a shaded roof you might justify micro inverters but you are multiplying the potential failure rate, instead of just one or two inverters you are installing lots of them, any one of them has the potential to fail, we replaced a 6 year old inverter recently with a one twice the size of the existing, we also fitted 20% more panels on to the spare inputs of the new inverter, more production, the customer was going to inform his energy supplier but for just 20% he might have forgot, he did give the old panels a good clean because the new strings were more than double the output of the old ones due to a large build up of dust, he had a farm track right next to the panels location,</p></blockquote><p></p>
[QUOTE="f0ster, post: 7261136, member: 66372"] we have installed about 18 container loads of pv over the years and there has not been any panel failures that we know of, quite a few inverters going down after about 5 years of use, panels are quite reliable, they are simple technology and usually do what they are supposed to, it is the electronics you add to them that gives failure, as mentioned above if you have a shaded roof you might justify micro inverters but you are multiplying the potential failure rate, instead of just one or two inverters you are installing lots of them, any one of them has the potential to fail, we replaced a 6 year old inverter recently with a one twice the size of the existing, we also fitted 20% more panels on to the spare inputs of the new inverter, more production, the customer was going to inform his energy supplier but for just 20% he might have forgot, he did give the old panels a good clean because the new strings were more than double the output of the old ones due to a large build up of dust, he had a farm track right next to the panels location, [/QUOTE]
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